Flights from Washington to Ko Samui (DCA to USM)

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€617

5:01pm - 8:00am
Mon Jan 26th 2026

50h 59m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Mon Jan 26th 2026 Alaska Airlines · AS 3 Depart at 5:01pm from Washington, D.C. (DCA) Fly for 6h 6m Arrive at 8:07pm in Seattle (SEA)

Layover in Seattle for 12h 38m

Tue Jan 27th 2026 Singapore Airlines · SQ 27 Depart at 8:45am from Seattle (SEA) Fly for 17h 0m Arrive at 5:45pm in Singapore (SIN)

Layover in Singapore for 13h 15m

Thu Jan 29th 2026 Scoot · TR 640 Depart at 7:00am from Singapore (SIN) Fly for 2h 0m Arrive at 8:00am in Ko Samui (USM)
€627

9:59am - 5:10pm
Wed Feb 25th 2026

43h 11m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Wed Feb 25th 2026 Hawaiian Airlines · HA 6705 Depart at 9:59am from Washington, D.C. (DCA) Fly for 6h 4m Arrive at 1:03pm in Los Angeles (LAX)

Layover in Los Angeles for 9h 2m

Wed Feb 25th 2026 Singapore Airlines · SQ 37 Depart at 10:05pm from Los Angeles (LAX) Fly for 17h 50m Arrive at 7:55am in Singapore (SIN)

Layover in Singapore for 8h 15m

Fri Feb 27th 2026 Scoot · TR 694 Depart at 4:10pm from Singapore (SIN) Fly for 2h 0m Arrive at 5:10pm in Ko Samui (USM)
€627

9:59am - 6:50pm
Wed Feb 25th 2026

44h 51m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Wed Feb 25th 2026 Hawaiian Airlines · HA 6705 Depart at 9:59am from Washington, D.C. (DCA) Fly for 6h 4m Arrive at 1:03pm in Los Angeles (LAX)

Layover in Los Angeles for 9h 2m

Wed Feb 25th 2026 Singapore Airlines · SQ 37 Depart at 10:05pm from Los Angeles (LAX) Fly for 17h 50m Arrive at 7:55am in Singapore (SIN)

Layover in Singapore for 10h 5m

Fri Feb 27th 2026 Scoot · TR 648 Depart at 6:00pm from Singapore (SIN) Fly for 1h 50m Arrive at 6:50pm in Ko Samui (USM)
€629

6:59pm - 8:00am
Sun Feb 22nd 2026

49h 1m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Sun Feb 22nd 2026 Hawaiian Airlines · HA 6707 Depart at 6:59pm from Washington, D.C. (DCA) Fly for 6h 20m Arrive at 10:19pm in San Francisco (SFO)

Layover in San Francisco for 11h 21m

Mon Feb 23rd 2026 Singapore Airlines · SQ 31 Depart at 9:40am from San Francisco (SFO) Fly for 17h 25m Arrive at 7:05pm in Singapore (SIN)

Layover in Singapore for 11h 55m

Wed Feb 25th 2026 Scoot · TR 640 Depart at 7:00am from Singapore (SIN) Fly for 2h 0m Arrive at 8:00am in Ko Samui (USM)
€634

5:01pm - 8:00am
Mon Feb 2nd 2026

50h 59m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Mon Feb 2nd 2026 Hawaiian Airlines · HA 6703 Depart at 5:01pm from Washington, D.C. (DCA) Fly for 6h 6m Arrive at 8:07pm in Seattle (SEA)

Layover in Seattle for 12h 38m

Tue Feb 3rd 2026 Singapore Airlines · SQ 27 Depart at 8:45am from Seattle (SEA) Fly for 17h 0m Arrive at 5:45pm in Singapore (SIN)

Layover in Singapore for 13h 15m

Thu Feb 5th 2026 Scoot · TR 640 Depart at 7:00am from Singapore (SIN) Fly for 2h 0m Arrive at 8:00am in Ko Samui (USM)
€646

5:01pm - 8:00am
Thu Feb 5th 2026

50h 59m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Thu Feb 5th 2026 Hawaiian Airlines · HA 6703 Depart at 5:01pm from Washington, D.C. (DCA) Fly for 6h 6m Arrive at 8:07pm in Seattle (SEA)

Layover in Seattle for 12h 38m

Fri Feb 6th 2026 Singapore Airlines · SQ 27 Depart at 8:45am from Seattle (SEA) Fly for 17h 0m Arrive at 5:45pm in Singapore (SIN)

Layover in Singapore for 13h 15m

Sun Feb 8th 2026 Scoot · TR 640 Depart at 7:00am from Singapore (SIN) Fly for 2h 0m Arrive at 8:00am in Ko Samui (USM)
€656

5:01pm - 8:00am
Sat Jan 24th 2026

50h 59m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Sat Jan 24th 2026 Hawaiian Airlines · HA 6703 Depart at 5:01pm from Washington, D.C. (DCA) Fly for 6h 6m Arrive at 8:07pm in Seattle (SEA)

Layover in Seattle for 12h 38m

Sun Jan 25th 2026 Singapore Airlines · SQ 27 Depart at 8:45am from Seattle (SEA) Fly for 17h 0m Arrive at 5:45pm in Singapore (SIN)

Layover in Singapore for 13h 15m

Tue Jan 27th 2026 Scoot · TR 640 Depart at 7:00am from Singapore (SIN) Fly for 2h 0m Arrive at 8:00am in Ko Samui (USM)
€657

9:59am - 5:10pm
Sun Mar 1st 2026

43h 11m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Sun Mar 1st 2026 Hawaiian Airlines · HA 6705 Depart at 9:59am from Washington, D.C. (DCA) Fly for 6h 4m Arrive at 1:03pm in Los Angeles (LAX)

Layover in Los Angeles for 6h 47m

Sun Mar 1st 2026 Singapore Airlines · SQ 35 Depart at 7:50pm from Los Angeles (LAX) Fly for 17h 40m Arrive at 5:30am in Singapore (SIN)

Layover in Singapore for 10h 40m

Tue Mar 3rd 2026 Scoot · TR 694 Depart at 4:10pm from Singapore (SIN) Fly for 2h 0m Arrive at 5:10pm in Ko Samui (USM)
€657

9:59am - 6:50pm
Sun Mar 1st 2026

44h 51m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Sun Mar 1st 2026 Hawaiian Airlines · HA 6705 Depart at 9:59am from Washington, D.C. (DCA) Fly for 6h 4m Arrive at 1:03pm in Los Angeles (LAX)

Layover in Los Angeles for 6h 47m

Sun Mar 1st 2026 Singapore Airlines · SQ 35 Depart at 7:50pm from Los Angeles (LAX) Fly for 17h 40m Arrive at 5:30am in Singapore (SIN)

Layover in Singapore for 12h 30m

Tue Mar 3rd 2026 Scoot · TR 648 Depart at 6:00pm from Singapore (SIN) Fly for 1h 50m Arrive at 6:50pm in Ko Samui (USM)
€657

5:00pm - 8:00am
Sat Feb 28th 2026

51h 0m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Sat Feb 28th 2026 Hawaiian Airlines · HA 6703 Depart at 5:00pm from Washington, D.C. (DCA) Fly for 6h 11m Arrive at 8:11pm in Seattle (SEA)

Layover in Seattle for 12h 34m

Sun Mar 1st 2026 Singapore Airlines · SQ 27 Depart at 8:45am from Seattle (SEA) Fly for 17h 0m Arrive at 5:45pm in Singapore (SIN)

Layover in Singapore for 13h 15m

Tue Mar 3rd 2026 Scoot · TR 640 Depart at 7:00am from Singapore (SIN) Fly for 2h 0m Arrive at 8:00am in Ko Samui (USM)
€665

5:00pm - 8:00am
Thu Feb 19th 2026

51h 0m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Thu Feb 19th 2026 Alaska Airlines · AS 3 Depart at 5:00pm from Washington, D.C. (DCA) Fly for 6h 11m Arrive at 8:11pm in Seattle (SEA)

Layover in Seattle for 12h 34m

Fri Feb 20th 2026 Singapore Airlines · SQ 27 Depart at 8:45am from Seattle (SEA) Fly for 17h 0m Arrive at 5:45pm in Singapore (SIN)

Layover in Singapore for 13h 15m

Sun Feb 22nd 2026 Scoot · TR 640 Depart at 7:00am from Singapore (SIN) Fly for 2h 0m Arrive at 8:00am in Ko Samui (USM)
€670

9:59am - 5:10pm
Wed Feb 25th 2026

43h 11m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Wed Feb 25th 2026 Hawaiian Airlines · HA 6705 Depart at 9:59am from Washington, D.C. (DCA) Fly for 6h 4m Arrive at 1:03pm in Los Angeles (LAX)

Layover in Los Angeles for 6h 47m

Wed Feb 25th 2026 Singapore Airlines · SQ 35 Depart at 7:50pm from Los Angeles (LAX) Fly for 17h 40m Arrive at 5:30am in Singapore (SIN)

Layover in Singapore for 10h 40m

Fri Feb 27th 2026 Scoot · TR 694 Depart at 4:10pm from Singapore (SIN) Fly for 2h 0m Arrive at 5:10pm in Ko Samui (USM)
€670

9:59am - 6:50pm
Wed Feb 25th 2026

44h 51m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Wed Feb 25th 2026 Hawaiian Airlines · HA 6705 Depart at 9:59am from Washington, D.C. (DCA) Fly for 6h 4m Arrive at 1:03pm in Los Angeles (LAX)

Layover in Los Angeles for 6h 47m

Wed Feb 25th 2026 Singapore Airlines · SQ 35 Depart at 7:50pm from Los Angeles (LAX) Fly for 17h 40m Arrive at 5:30am in Singapore (SIN)

Layover in Singapore for 12h 30m

Fri Feb 27th 2026 Scoot · TR 648 Depart at 6:00pm from Singapore (SIN) Fly for 1h 50m Arrive at 6:50pm in Ko Samui (USM)
€684

9:59am - 11:00am
Wed Feb 25th 2026

37h 1m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Wed Feb 25th 2026 Hawaiian Airlines · HA 6705 Depart at 9:59am from Washington, D.C. (DCA) Fly for 6h 4m Arrive at 1:03pm in Los Angeles (LAX)

Layover in Los Angeles for 9h 2m

Wed Feb 25th 2026 Singapore Airlines · SQ 37 Depart at 10:05pm from Los Angeles (LAX) Fly for 17h 50m Arrive at 7:55am in Singapore (SIN)

Layover in Singapore for 2h 5m

Fri Feb 27th 2026 Scoot · TR 642 Depart at 10:00am from Singapore (SIN) Fly for 2h 0m Arrive at 11:00am in Ko Samui (USM)
€691

9:59am - 11:00am
Sun Mar 1st 2026

37h 1m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Sun Mar 1st 2026 Hawaiian Airlines · HA 6705 Depart at 9:59am from Washington, D.C. (DCA) Fly for 6h 4m Arrive at 1:03pm in Los Angeles (LAX)

Layover in Los Angeles for 6h 47m

Sun Mar 1st 2026 Singapore Airlines · SQ 35 Depart at 7:50pm from Los Angeles (LAX) Fly for 17h 40m Arrive at 5:30am in Singapore (SIN)

Layover in Singapore for 4h 30m

Tue Mar 3rd 2026 Scoot · TR 642 Depart at 10:00am from Singapore (SIN) Fly for 2h 0m Arrive at 11:00am in Ko Samui (USM)
€692

5:00pm - 9:05pm
Mon Mar 2nd 2026

40h 5m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Mon Mar 2nd 2026 Hawaiian Airlines · HA 6703 Depart at 5:00pm from Washington, D.C. (DCA) Fly for 6h 11m Arrive at 8:11pm in Seattle (SEA)

Layover in Seattle for 12h 34m

Tue Mar 3rd 2026 Singapore Airlines · SQ 27 Depart at 8:45am from Seattle (SEA) Fly for 17h 0m Arrive at 5:45pm in Singapore (SIN)

Layover in Singapore for 2h 25m

Wed Mar 4th 2026 Bangkok Airways · PG 962 Depart at 8:10pm from Singapore (SIN) Fly for 1h 55m Arrive at 9:05pm in Ko Samui (USM)
€692

5:00pm - 9:05pm
Mon Mar 9th 2026

41h 5m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Mon Mar 9th 2026 Hawaiian Airlines · HA 6703 Depart at 5:00pm from Washington, D.C. (DCA) Fly for 6h 11m Arrive at 8:11pm in Seattle (SEA)

Layover in Seattle for 13h 34m

Tue Mar 10th 2026 Singapore Airlines · SQ 27 Depart at 9:45am from Seattle (SEA) Fly for 17h 0m Arrive at 5:45pm in Singapore (SIN)

Layover in Singapore for 2h 25m

Wed Mar 11th 2026 Bangkok Airways · PG 962 Depart at 8:10pm from Singapore (SIN) Fly for 1h 55m Arrive at 9:05pm in Ko Samui (USM)
€695

9:59am - 5:10pm
Wed Mar 4th 2026

43h 11m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Wed Mar 4th 2026 Hawaiian Airlines · HA 6705 Depart at 9:59am from Washington, D.C. (DCA) Fly for 6h 4m Arrive at 1:03pm in Los Angeles (LAX)

Layover in Los Angeles for 6h 47m

Wed Mar 4th 2026 Singapore Airlines · SQ 35 Depart at 7:50pm from Los Angeles (LAX) Fly for 17h 40m Arrive at 5:30am in Singapore (SIN)

Layover in Singapore for 10h 40m

Fri Mar 6th 2026 Scoot · TR 694 Depart at 4:10pm from Singapore (SIN) Fly for 2h 0m Arrive at 5:10pm in Ko Samui (USM)
€695

9:59am - 5:10pm
Mon Feb 23rd 2026

43h 11m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Mon Feb 23rd 2026 Hawaiian Airlines · HA 6705 Depart at 9:59am from Washington, D.C. (DCA) Fly for 6h 4m Arrive at 1:03pm in Los Angeles (LAX)

Layover in Los Angeles for 9h 2m

Mon Feb 23rd 2026 Singapore Airlines · SQ 37 Depart at 10:05pm from Los Angeles (LAX) Fly for 17h 50m Arrive at 7:55am in Singapore (SIN)

Layover in Singapore for 8h 15m

Wed Feb 25th 2026 Scoot · TR 694 Depart at 4:10pm from Singapore (SIN) Fly for 2h 0m Arrive at 5:10pm in Ko Samui (USM)
€695

9:59am - 5:10pm
Mon Mar 2nd 2026

43h 11m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Mon Mar 2nd 2026 Hawaiian Airlines · HA 6705 Depart at 9:59am from Washington, D.C. (DCA) Fly for 6h 4m Arrive at 1:03pm in Los Angeles (LAX)

Layover in Los Angeles for 9h 2m

Mon Mar 2nd 2026 Singapore Airlines · SQ 37 Depart at 10:05pm from Los Angeles (LAX) Fly for 17h 50m Arrive at 7:55am in Singapore (SIN)

Layover in Singapore for 8h 15m

Wed Mar 4th 2026 Scoot · TR 694 Depart at 4:10pm from Singapore (SIN) Fly for 2h 0m Arrive at 5:10pm in Ko Samui (USM)
€695

9:59am - 5:10pm
Tue Mar 10th 2026

44h 11m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Tue Mar 10th 2026 Hawaiian Airlines · HA 6705 Depart at 9:59am from Washington, D.C. (DCA) Fly for 6h 4m Arrive at 1:03pm in Los Angeles (LAX)

Layover in Los Angeles for 10h 2m

Tue Mar 10th 2026 Singapore Airlines · SQ 37 Depart at 11:05pm from Los Angeles (LAX) Fly for 17h 50m Arrive at 7:55am in Singapore (SIN)

Layover in Singapore for 8h 15m

Thu Mar 12th 2026 Scoot · TR 694 Depart at 4:10pm from Singapore (SIN) Fly for 2h 0m Arrive at 5:10pm in Ko Samui (USM)
€695

9:59am - 6:50pm
Mon Mar 2nd 2026

44h 51m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Mon Mar 2nd 2026 Hawaiian Airlines · HA 6705 Depart at 9:59am from Washington, D.C. (DCA) Fly for 6h 4m Arrive at 1:03pm in Los Angeles (LAX)

Layover in Los Angeles for 9h 2m

Mon Mar 2nd 2026 Singapore Airlines · SQ 37 Depart at 10:05pm from Los Angeles (LAX) Fly for 17h 50m Arrive at 7:55am in Singapore (SIN)

Layover in Singapore for 10h 5m

Wed Mar 4th 2026 Scoot · TR 648 Depart at 6:00pm from Singapore (SIN) Fly for 1h 50m Arrive at 6:50pm in Ko Samui (USM)
€697

9:59am - 8:00am
Fri Jan 23rd 2026

34h 1m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Fri Jan 23rd 2026 Hawaiian Airlines · HA 6705 Depart at 9:59am from Washington, D.C. (DCA) Fly for 5h 57m Arrive at 12:56pm in Los Angeles (LAX)

Layover in Los Angeles for 6h 54m

Fri Jan 23rd 2026 Singapore Airlines · SQ 35 Depart at 7:50pm from Los Angeles (LAX) Fly for 17h 40m Arrive at 5:30am in Singapore (SIN)

Layover in Singapore for 1h 30m

Sun Jan 25th 2026 Singapore Airlines · SQ 8340 Depart at 7:00am from Singapore (SIN) Fly for 2h 0m Arrive at 8:00am in Ko Samui (USM)
€702

9:59am - 5:10pm
Sat Feb 28th 2026

43h 11m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Sat Feb 28th 2026 Hawaiian Airlines · HA 6705 Depart at 9:59am from Washington, D.C. (DCA) Fly for 6h 4m Arrive at 1:03pm in Los Angeles (LAX)

Layover in Los Angeles for 9h 2m

Sat Feb 28th 2026 Singapore Airlines · SQ 37 Depart at 10:05pm from Los Angeles (LAX) Fly for 17h 50m Arrive at 7:55am in Singapore (SIN)

Layover in Singapore for 8h 15m

Mon Mar 2nd 2026 Scoot · TR 694 Depart at 4:10pm from Singapore (SIN) Fly for 2h 0m Arrive at 5:10pm in Ko Samui (USM)
€702

9:59am - 5:10pm
Thu Feb 19th 2026

43h 11m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Thu Feb 19th 2026 Hawaiian Airlines · HA 6705 Depart at 9:59am from Washington, D.C. (DCA) Fly for 6h 4m Arrive at 1:03pm in Los Angeles (LAX)

Layover in Los Angeles for 9h 2m

Thu Feb 19th 2026 Singapore Airlines · SQ 37 Depart at 10:05pm from Los Angeles (LAX) Fly for 17h 50m Arrive at 7:55am in Singapore (SIN)

Layover in Singapore for 8h 15m

Sat Feb 21st 2026 Scoot · TR 694 Depart at 4:10pm from Singapore (SIN) Fly for 2h 0m Arrive at 5:10pm in Ko Samui (USM)
€709

8:00am - 8:00am
Thu Jan 15th 2026

60h 0m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Thu Jan 15th 2026 Hawaiian Airlines · HA 6701 Depart at 8:00am from Washington, D.C. (DCA) Fly for 6h 9m Arrive at 11:09am in Seattle (SEA)

Layover in Seattle for 21h 36m

Fri Jan 16th 2026 Singapore Airlines · SQ 27 Depart at 8:45am from Seattle (SEA) Fly for 17h 0m Arrive at 5:45pm in Singapore (SIN)

Layover in Singapore for 13h 15m

Sun Jan 18th 2026 Scoot · TR 640 Depart at 7:00am from Singapore (SIN) Fly for 2h 0m Arrive at 8:00am in Ko Samui (USM)
€710

5:00pm - 9:05pm
Sat Mar 7th 2026

40h 5m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Sat Mar 7th 2026 Hawaiian Airlines · HA 6703 Depart at 5:00pm from Washington, D.C. (DCA) Fly for 6h 11m Arrive at 8:11pm in Seattle (SEA)

Layover in Seattle for 12h 34m

Sun Mar 8th 2026 Singapore Airlines · SQ 27 Depart at 9:45am from Seattle (SEA) Fly for 17h 0m Arrive at 5:45pm in Singapore (SIN)

Layover in Singapore for 2h 25m

Mon Mar 9th 2026 Bangkok Airways · PG 962 Depart at 8:10pm from Singapore (SIN) Fly for 1h 55m Arrive at 9:05pm in Ko Samui (USM)
€713

5:01pm - 8:00am
Wed Jan 14th 2026

50h 59m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Wed Jan 14th 2026 Hawaiian Airlines · HA 6703 Depart at 5:01pm from Washington, D.C. (DCA) Fly for 6h 6m Arrive at 8:07pm in Seattle (SEA)

Layover in Seattle for 12h 38m

Thu Jan 15th 2026 Singapore Airlines · SQ 27 Depart at 8:45am from Seattle (SEA) Fly for 17h 0m Arrive at 5:45pm in Singapore (SIN)

Layover in Singapore for 13h 15m

Sat Jan 17th 2026 Scoot · TR 640 Depart at 7:00am from Singapore (SIN) Fly for 2h 0m Arrive at 8:00am in Ko Samui (USM)
€714

5:00pm - 9:05pm
Sat Mar 14th 2026

41h 5m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Sat Mar 14th 2026 Alaska Airlines · AS 3 Depart at 5:00pm from Washington, D.C. (DCA) Fly for 6h 11m Arrive at 8:11pm in Seattle (SEA)

Layover in Seattle for 13h 34m

Sun Mar 15th 2026 Singapore Airlines · SQ 27 Depart at 9:45am from Seattle (SEA) Fly for 17h 0m Arrive at 5:45pm in Singapore (SIN)

Layover in Singapore for 2h 25m

Mon Mar 16th 2026 Bangkok Airways · PG 962 Depart at 8:10pm from Singapore (SIN) Fly for 1h 55m Arrive at 9:05pm in Ko Samui (USM)
€714

5:01pm - 8:00am
Mon Jan 12th 2026

50h 59m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Mon Jan 12th 2026 Hawaiian Airlines · HA 6703 Depart at 5:01pm from Washington, D.C. (DCA) Fly for 6h 6m Arrive at 8:07pm in Seattle (SEA)

Layover in Seattle for 12h 38m

Tue Jan 13th 2026 Singapore Airlines · SQ 27 Depart at 8:45am from Seattle (SEA) Fly for 17h 0m Arrive at 5:45pm in Singapore (SIN)

Layover in Singapore for 13h 15m

Thu Jan 15th 2026 Scoot · TR 640 Depart at 7:00am from Singapore (SIN) Fly for 2h 0m Arrive at 8:00am in Ko Samui (USM)
€720

5:01pm - 9:05pm
Mon Jan 26th 2026

40h 4m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Mon Jan 26th 2026 Alaska Airlines · AS 3 Depart at 5:01pm from Washington, D.C. (DCA) Fly for 6h 6m Arrive at 8:07pm in Seattle (SEA)

Layover in Seattle for 12h 38m

Tue Jan 27th 2026 Singapore Airlines · SQ 27 Depart at 8:45am from Seattle (SEA) Fly for 17h 0m Arrive at 5:45pm in Singapore (SIN)

Layover in Singapore for 2h 25m

Wed Jan 28th 2026 Bangkok Airways · PG 962 Depart at 8:10pm from Singapore (SIN) Fly for 1h 55m Arrive at 9:05pm in Ko Samui (USM)
€724

9:59am - 5:10pm
Thu Mar 5th 2026

43h 11m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Thu Mar 5th 2026 Hawaiian Airlines · HA 6705 Depart at 9:59am from Washington, D.C. (DCA) Fly for 6h 4m Arrive at 1:03pm in Los Angeles (LAX)

Layover in Los Angeles for 9h 2m

Thu Mar 5th 2026 Singapore Airlines · SQ 37 Depart at 10:05pm from Los Angeles (LAX) Fly for 17h 50m Arrive at 7:55am in Singapore (SIN)

Layover in Singapore for 8h 15m

Sat Mar 7th 2026 Scoot · TR 694 Depart at 4:10pm from Singapore (SIN) Fly for 2h 0m Arrive at 5:10pm in Ko Samui (USM)
€727

9:59am - 11:00am
Wed Feb 25th 2026

37h 1m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Wed Feb 25th 2026 Hawaiian Airlines · HA 6705 Depart at 9:59am from Washington, D.C. (DCA) Fly for 6h 4m Arrive at 1:03pm in Los Angeles (LAX)

Layover in Los Angeles for 6h 47m

Wed Feb 25th 2026 Singapore Airlines · SQ 35 Depart at 7:50pm from Los Angeles (LAX) Fly for 17h 40m Arrive at 5:30am in Singapore (SIN)

Layover in Singapore for 4h 30m

Fri Feb 27th 2026 Scoot · TR 642 Depart at 10:00am from Singapore (SIN) Fly for 2h 0m Arrive at 11:00am in Ko Samui (USM)
€728

9:59am - 11:00am
Mon Mar 2nd 2026

37h 1m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Mon Mar 2nd 2026 Hawaiian Airlines · HA 6705 Depart at 9:59am from Washington, D.C. (DCA) Fly for 6h 4m Arrive at 1:03pm in Los Angeles (LAX)

Layover in Los Angeles for 9h 2m

Mon Mar 2nd 2026 Singapore Airlines · SQ 37 Depart at 10:05pm from Los Angeles (LAX) Fly for 17h 50m Arrive at 7:55am in Singapore (SIN)

Layover in Singapore for 2h 5m

Wed Mar 4th 2026 Scoot · TR 642 Depart at 10:00am from Singapore (SIN) Fly for 2h 0m Arrive at 11:00am in Ko Samui (USM)
€729

9:59am - 11:00am
Sat Feb 28th 2026

37h 1m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Sat Feb 28th 2026 Hawaiian Airlines · HA 6705 Depart at 9:59am from Washington, D.C. (DCA) Fly for 6h 4m Arrive at 1:03pm in Los Angeles (LAX)

Layover in Los Angeles for 9h 2m

Sat Feb 28th 2026 Singapore Airlines · SQ 37 Depart at 10:05pm from Los Angeles (LAX) Fly for 17h 50m Arrive at 7:55am in Singapore (SIN)

Layover in Singapore for 2h 5m

Mon Mar 2nd 2026 Scoot · TR 642 Depart at 10:00am from Singapore (SIN) Fly for 2h 0m Arrive at 11:00am in Ko Samui (USM)
€729

9:59am - 11:00am
Wed Mar 4th 2026

37h 1m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Wed Mar 4th 2026 Hawaiian Airlines · HA 6705 Depart at 9:59am from Washington, D.C. (DCA) Fly for 6h 4m Arrive at 1:03pm in Los Angeles (LAX)

Layover in Los Angeles for 6h 47m

Wed Mar 4th 2026 Singapore Airlines · SQ 35 Depart at 7:50pm from Los Angeles (LAX) Fly for 17h 40m Arrive at 5:30am in Singapore (SIN)

Layover in Singapore for 4h 30m

Fri Mar 6th 2026 Scoot · TR 642 Depart at 10:00am from Singapore (SIN) Fly for 2h 0m Arrive at 11:00am in Ko Samui (USM)
€729

9:59am - 11:00am
Tue Mar 10th 2026

38h 1m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Tue Mar 10th 2026 Hawaiian Airlines · HA 6705 Depart at 9:59am from Washington, D.C. (DCA) Fly for 6h 4m Arrive at 1:03pm in Los Angeles (LAX)

Layover in Los Angeles for 10h 2m

Tue Mar 10th 2026 Singapore Airlines · SQ 37 Depart at 11:05pm from Los Angeles (LAX) Fly for 17h 50m Arrive at 7:55am in Singapore (SIN)

Layover in Singapore for 2h 5m

Thu Mar 12th 2026 Scoot · TR 642 Depart at 10:00am from Singapore (SIN) Fly for 2h 0m Arrive at 11:00am in Ko Samui (USM)
€730

9:59am - 1:05pm
Tue Mar 10th 2026

40h 6m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Tue Mar 10th 2026 Hawaiian Airlines · HA 6705 Depart at 9:59am from Washington, D.C. (DCA) Fly for 6h 4m Arrive at 1:03pm in Los Angeles (LAX)

Layover in Los Angeles for 10h 2m

Tue Mar 10th 2026 Singapore Airlines · SQ 37 Depart at 11:05pm from Los Angeles (LAX) Fly for 17h 50m Arrive at 7:55am in Singapore (SIN)

Layover in Singapore for 4h 15m

Thu Mar 12th 2026 Bangkok Airways · PG 966 Depart at 12:10pm from Singapore (SIN) Fly for 1h 55m Arrive at 1:05pm in Ko Samui (USM)
€739

5:00pm - 9:05pm
Wed Mar 4th 2026

40h 5m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Wed Mar 4th 2026 Hawaiian Airlines · HA 6703 Depart at 5:00pm from Washington, D.C. (DCA) Fly for 6h 11m Arrive at 8:11pm in Seattle (SEA)

Layover in Seattle for 12h 34m

Thu Mar 5th 2026 Singapore Airlines · SQ 27 Depart at 8:45am from Seattle (SEA) Fly for 17h 0m Arrive at 5:45pm in Singapore (SIN)

Layover in Singapore for 2h 25m

Fri Mar 6th 2026 Bangkok Airways · PG 962 Depart at 8:10pm from Singapore (SIN) Fly for 1h 55m Arrive at 9:05pm in Ko Samui (USM)
€739

5:01pm - 8:00am
Thu Jan 15th 2026

50h 59m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Thu Jan 15th 2026 Hawaiian Airlines · HA 6703 Depart at 5:01pm from Washington, D.C. (DCA) Fly for 6h 6m Arrive at 8:07pm in Seattle (SEA)

Layover in Seattle for 12h 38m

Fri Jan 16th 2026 Singapore Airlines · SQ 27 Depart at 8:45am from Seattle (SEA) Fly for 17h 0m Arrive at 5:45pm in Singapore (SIN)

Layover in Singapore for 13h 15m

Sun Jan 18th 2026 Scoot · TR 640 Depart at 7:00am from Singapore (SIN) Fly for 2h 0m Arrive at 8:00am in Ko Samui (USM)
€751

9:59am - 11:00am
Sat Feb 21st 2026

37h 1m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Sat Feb 21st 2026 Hawaiian Airlines · HA 6705 Depart at 9:59am from Washington, D.C. (DCA) Fly for 6h 4m Arrive at 1:03pm in Los Angeles (LAX)

Layover in Los Angeles for 9h 2m

Sat Feb 21st 2026 Singapore Airlines · SQ 37 Depart at 10:05pm from Los Angeles (LAX) Fly for 17h 50m Arrive at 7:55am in Singapore (SIN)

Layover in Singapore for 2h 5m

Mon Feb 23rd 2026 Scoot · TR 642 Depart at 10:00am from Singapore (SIN) Fly for 2h 0m Arrive at 11:00am in Ko Samui (USM)
€753

9:59am - 11:00am
Mon Feb 23rd 2026

37h 1m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Mon Feb 23rd 2026 Hawaiian Airlines · HA 6705 Depart at 9:59am from Washington, D.C. (DCA) Fly for 6h 4m Arrive at 1:03pm in Los Angeles (LAX)

Layover in Los Angeles for 9h 2m

Mon Feb 23rd 2026 Singapore Airlines · SQ 37 Depart at 10:05pm from Los Angeles (LAX) Fly for 17h 50m Arrive at 7:55am in Singapore (SIN)

Layover in Singapore for 2h 5m

Wed Feb 25th 2026 Scoot · TR 642 Depart at 10:00am from Singapore (SIN) Fly for 2h 0m Arrive at 11:00am in Ko Samui (USM)
€753

5:01pm - 9:05pm
Sat Jan 10th 2026

40h 4m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Sat Jan 10th 2026 Hawaiian Airlines · HA 6703 Depart at 5:01pm from Washington, D.C. (DCA) Fly for 6h 6m Arrive at 8:07pm in Seattle (SEA)

Layover in Seattle for 12h 38m

Sun Jan 11th 2026 Singapore Airlines · SQ 27 Depart at 8:45am from Seattle (SEA) Fly for 17h 0m Arrive at 5:45pm in Singapore (SIN)

Layover in Singapore for 2h 25m

Mon Jan 12th 2026 Bangkok Airways · PG 962 Depart at 8:10pm from Singapore (SIN) Fly for 1h 55m Arrive at 9:05pm in Ko Samui (USM)
€757

9:59am - 11:00am
Sun Mar 8th 2026

38h 1m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Sun Mar 8th 2026 Hawaiian Airlines · HA 6705 Depart at 9:59am from Washington, D.C. (DCA) Fly for 6h 4m Arrive at 1:03pm in Los Angeles (LAX)

Layover in Los Angeles for 7h 47m

Sun Mar 8th 2026 Singapore Airlines · SQ 35 Depart at 8:50pm from Los Angeles (LAX) Fly for 17h 40m Arrive at 5:30am in Singapore (SIN)

Layover in Singapore for 4h 30m

Tue Mar 10th 2026 Scoot · TR 642 Depart at 10:00am from Singapore (SIN) Fly for 2h 0m Arrive at 11:00am in Ko Samui (USM)
€758

9:59am - 11:00am
Thu Mar 5th 2026

37h 1m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Thu Mar 5th 2026 Hawaiian Airlines · HA 6705 Depart at 9:59am from Washington, D.C. (DCA) Fly for 6h 4m Arrive at 1:03pm in Los Angeles (LAX)

Layover in Los Angeles for 9h 2m

Thu Mar 5th 2026 Singapore Airlines · SQ 37 Depart at 10:05pm from Los Angeles (LAX) Fly for 17h 50m Arrive at 7:55am in Singapore (SIN)

Layover in Singapore for 2h 5m

Sat Mar 7th 2026 Scoot · TR 642 Depart at 10:00am from Singapore (SIN) Fly for 2h 0m Arrive at 11:00am in Ko Samui (USM)
€758

9:59am - 11:00am
Tue Mar 3rd 2026

37h 1m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Tue Mar 3rd 2026 Hawaiian Airlines · HA 6705 Depart at 9:59am from Washington, D.C. (DCA) Fly for 6h 4m Arrive at 1:03pm in Los Angeles (LAX)

Layover in Los Angeles for 9h 2m

Tue Mar 3rd 2026 Singapore Airlines · SQ 37 Depart at 10:05pm from Los Angeles (LAX) Fly for 17h 50m Arrive at 7:55am in Singapore (SIN)

Layover in Singapore for 2h 5m

Thu Mar 5th 2026 Scoot · TR 642 Depart at 10:00am from Singapore (SIN) Fly for 2h 0m Arrive at 11:00am in Ko Samui (USM)
€762

9:59am - 11:00am
Sat Mar 7th 2026

37h 1m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Sat Mar 7th 2026 Alaska Airlines · AS 5 Depart at 9:59am from Washington, D.C. (DCA) Fly for 6h 4m Arrive at 1:03pm in Los Angeles (LAX)

Layover in Los Angeles for 9h 2m

Sat Mar 7th 2026 Singapore Airlines · SQ 37 Depart at 10:05pm from Los Angeles (LAX) Fly for 17h 50m Arrive at 7:55am in Singapore (SIN)

Layover in Singapore for 2h 5m

Mon Mar 9th 2026 Scoot · TR 642 Depart at 10:00am from Singapore (SIN) Fly for 2h 0m Arrive at 11:00am in Ko Samui (USM)
€762

9:59am - 6:50pm
Fri Jan 16th 2026

44h 51m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Fri Jan 16th 2026 Hawaiian Airlines · HA 6705 Depart at 9:59am from Washington, D.C. (DCA) Fly for 5h 57m Arrive at 12:56pm in Los Angeles (LAX)

Layover in Los Angeles for 6h 54m

Fri Jan 16th 2026 Singapore Airlines · SQ 35 Depart at 7:50pm from Los Angeles (LAX) Fly for 17h 40m Arrive at 5:30am in Singapore (SIN)

Layover in Singapore for 12h 30m

Sun Jan 18th 2026 Singapore Airlines · SQ 8586 Depart at 6:00pm from Singapore (SIN) Fly for 1h 50m Arrive at 6:50pm in Ko Samui (USM)
€798

9:59am - 7:35pm
Wed Jan 7th 2026

45h 36m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Wed Jan 7th 2026 Hawaiian Airlines · HA 6705 Depart at 9:59am from Washington, D.C. (DCA) Fly for 5h 57m Arrive at 12:56pm in Los Angeles (LAX)

Layover in Los Angeles for 9h 39m

Wed Jan 7th 2026 Cathay Pacific · CX 881 Depart at 10:35pm from Los Angeles (LAX) Fly for 15h 55m Arrive at 6:30am in Hong Kong (HKG)

Layover in Hong Kong for 10h 35m

Fri Jan 9th 2026 Cathay Pacific · CX 6503 Depart at 5:05pm from Hong Kong (HKG) Fly for 3h 30m Arrive at 7:35pm in Ko Samui (USM)
€798

9:59am - 7:35pm
Tue Jan 6th 2026

45h 36m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Tue Jan 6th 2026 Hawaiian Airlines · HA 6705 Depart at 9:59am from Washington, D.C. (DCA) Fly for 5h 52m Arrive at 12:51pm in Los Angeles (LAX)

Layover in Los Angeles for 9h 44m

Tue Jan 6th 2026 Cathay Pacific · CX 881 Depart at 10:35pm from Los Angeles (LAX) Fly for 15h 55m Arrive at 6:30am in Hong Kong (HKG)

Layover in Hong Kong for 10h 35m

Thu Jan 8th 2026 Cathay Pacific · CX 6503 Depart at 5:05pm from Hong Kong (HKG) Fly for 3h 30m Arrive at 7:35pm in Ko Samui (USM)
€798

9:59am - 7:35pm
Thu Jan 15th 2026

45h 36m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Thu Jan 15th 2026 Hawaiian Airlines · HA 6705 Depart at 9:59am from Washington, D.C. (DCA) Fly for 5h 57m Arrive at 12:56pm in Los Angeles (LAX)

Layover in Los Angeles for 9h 39m

Thu Jan 15th 2026 Cathay Pacific · CX 881 Depart at 10:35pm from Los Angeles (LAX) Fly for 15h 55m Arrive at 6:30am in Hong Kong (HKG)

Layover in Hong Kong for 10h 35m

Sat Jan 17th 2026 Cathay Pacific · CX 6503 Depart at 5:05pm from Hong Kong (HKG) Fly for 3h 30m Arrive at 7:35pm in Ko Samui (USM)
€812

9:59am - 7:35pm
Mon Nov 24th 2025

45h 36m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Mon Nov 24th 2025 Alaska Airlines · AS 5 Depart at 9:59am from Washington, D.C. (DCA) Fly for 5h 55m Arrive at 12:54pm in Los Angeles (LAX)

Layover in Los Angeles for 9h 41m

Mon Nov 24th 2025 Cathay Pacific · CX 881 Depart at 10:35pm from Los Angeles (LAX) Fly for 15h 55m Arrive at 6:30am in Hong Kong (HKG)

Layover in Hong Kong for 10h 35m

Wed Nov 26th 2025 Cathay Pacific · CX 6503 Depart at 5:05pm from Hong Kong (HKG) Fly for 3h 30m Arrive at 7:35pm in Ko Samui (USM)
€817

5:30pm - 7:50am
Sat May 2nd 2026

51h 20m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Sat May 2nd 2026 Alaska Airlines · AS 3 Depart at 5:30pm from Washington, D.C. (DCA) Fly for 6h 2m Arrive at 8:32pm in Seattle (SEA)

Layover in Seattle for 13h 43m

Sun May 3rd 2026 Singapore Airlines · SQ 27 Depart at 10:15am from Seattle (SEA) Fly for 16h 20m Arrive at 5:35pm in Singapore (SIN)

Layover in Singapore for 13h 25m

Tue May 5th 2026 Scoot · TR 640 Depart at 7:00am from Singapore (SIN) Fly for 1h 50m Arrive at 7:50am in Ko Samui (USM)
€828

9:59am - 5:10pm
Fri Jan 16th 2026

43h 11m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Fri Jan 16th 2026 Hawaiian Airlines · HA 6705 Depart at 9:59am from Washington, D.C. (DCA) Fly for 5h 57m Arrive at 12:56pm in Los Angeles (LAX)

Layover in Los Angeles for 6h 54m

Fri Jan 16th 2026 Singapore Airlines · SQ 35 Depart at 7:50pm from Los Angeles (LAX) Fly for 17h 40m Arrive at 5:30am in Singapore (SIN)

Layover in Singapore for 10h 40m

Sun Jan 18th 2026 Singapore Airlines · SQ 8360 Depart at 4:10pm from Singapore (SIN) Fly for 2h 0m Arrive at 5:10pm in Ko Samui (USM)
€852

5:30pm - 9:10pm
Sat May 2nd 2026

40h 40m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Sat May 2nd 2026 Alaska Airlines · AS 3 Depart at 5:30pm from Washington, D.C. (DCA) Fly for 6h 2m Arrive at 8:32pm in Seattle (SEA)

Layover in Seattle for 13h 43m

Sun May 3rd 2026 Singapore Airlines · SQ 27 Depart at 10:15am from Seattle (SEA) Fly for 16h 20m Arrive at 5:35pm in Singapore (SIN)

Layover in Singapore for 2h 40m

Mon May 4th 2026 Bangkok Airways · PG 962 Depart at 8:15pm from Singapore (SIN) Fly for 1h 55m Arrive at 9:10pm in Ko Samui (USM)
€862

5:01pm - 9:05pm
Wed Jan 14th 2026

40h 4m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Wed Jan 14th 2026 Hawaiian Airlines · HA 6703 Depart at 5:01pm from Washington, D.C. (DCA) Fly for 6h 6m Arrive at 8:07pm in Seattle (SEA)

Layover in Seattle for 12h 38m

Thu Jan 15th 2026 Singapore Airlines · SQ 27 Depart at 8:45am from Seattle (SEA) Fly for 17h 0m Arrive at 5:45pm in Singapore (SIN)

Layover in Singapore for 2h 25m

Fri Jan 16th 2026 Bangkok Airways · PG 962 Depart at 8:10pm from Singapore (SIN) Fly for 1h 55m Arrive at 9:05pm in Ko Samui (USM)
€862

5:01pm - 9:05pm
Mon Jan 12th 2026

40h 4m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Mon Jan 12th 2026 Hawaiian Airlines · HA 6703 Depart at 5:01pm from Washington, D.C. (DCA) Fly for 6h 6m Arrive at 8:07pm in Seattle (SEA)

Layover in Seattle for 12h 38m

Tue Jan 13th 2026 Singapore Airlines · SQ 27 Depart at 8:45am from Seattle (SEA) Fly for 17h 0m Arrive at 5:45pm in Singapore (SIN)

Layover in Singapore for 2h 25m

Wed Jan 14th 2026 Bangkok Airways · PG 962 Depart at 8:10pm from Singapore (SIN) Fly for 1h 55m Arrive at 9:05pm in Ko Samui (USM)
€874

9:59am - 7:35pm
Mon Jan 12th 2026

45h 36m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Mon Jan 12th 2026 Alaska Airlines · AS 5 Depart at 9:59am from Washington, D.C. (DCA) Fly for 5h 57m Arrive at 12:56pm in Los Angeles (LAX)

Layover in Los Angeles for 8h 19m

Mon Jan 12th 2026 Cathay Pacific · CX 883 Depart at 9:15pm from Los Angeles (LAX) Fly for 15h 50m Arrive at 5:05am in Hong Kong (HKG)

Layover in Hong Kong for 12h 0m

Wed Jan 14th 2026 Bangkok Airways · PG 806 Depart at 5:05pm from Hong Kong (HKG) Fly for 3h 30m Arrive at 7:35pm in Ko Samui (USM)
€874

9:59am - 7:35pm
Mon Jan 5th 2026

45h 36m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Mon Jan 5th 2026 Alaska Airlines · AS 5 Depart at 9:59am from Washington, D.C. (DCA) Fly for 5h 52m Arrive at 12:51pm in Los Angeles (LAX)

Layover in Los Angeles for 8h 24m

Mon Jan 5th 2026 Cathay Pacific · CX 883 Depart at 9:15pm from Los Angeles (LAX) Fly for 15h 50m Arrive at 5:05am in Hong Kong (HKG)

Layover in Hong Kong for 12h 0m

Wed Jan 7th 2026 Bangkok Airways · PG 806 Depart at 5:05pm from Hong Kong (HKG) Fly for 3h 30m Arrive at 7:35pm in Ko Samui (USM)
€874

9:59am - 7:35pm
Wed Jan 14th 2026

45h 36m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Wed Jan 14th 2026 Alaska Airlines · AS 5 Depart at 9:59am from Washington, D.C. (DCA) Fly for 5h 57m Arrive at 12:56pm in Los Angeles (LAX)

Layover in Los Angeles for 8h 19m

Wed Jan 14th 2026 Cathay Pacific · CX 883 Depart at 9:15pm from Los Angeles (LAX) Fly for 15h 50m Arrive at 5:05am in Hong Kong (HKG)

Layover in Hong Kong for 12h 0m

Fri Jan 16th 2026 Bangkok Airways · PG 806 Depart at 5:05pm from Hong Kong (HKG) Fly for 3h 30m Arrive at 7:35pm in Ko Samui (USM)
€893

9:59am - 8:00am
Fri Jan 16th 2026

34h 1m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Fri Jan 16th 2026 Hawaiian Airlines · HA 6705 Depart at 9:59am from Washington, D.C. (DCA) Fly for 5h 57m Arrive at 12:56pm in Los Angeles (LAX)

Layover in Los Angeles for 6h 54m

Fri Jan 16th 2026 Singapore Airlines · SQ 35 Depart at 7:50pm from Los Angeles (LAX) Fly for 17h 40m Arrive at 5:30am in Singapore (SIN)

Layover in Singapore for 1h 30m

Sun Jan 18th 2026 Singapore Airlines · SQ 8340 Depart at 7:00am from Singapore (SIN) Fly for 2h 0m Arrive at 8:00am in Ko Samui (USM)
€907

9:59am - 11:00am
Mon Nov 24th 2025

37h 1m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Mon Nov 24th 2025 Alaska Airlines · AS 5 Depart at 9:59am from Washington, D.C. (DCA) Fly for 5h 55m Arrive at 12:54pm in Los Angeles (LAX)

Layover in Los Angeles for 9h 11m

Mon Nov 24th 2025 Singapore Airlines · SQ 37 Depart at 10:05pm from Los Angeles (LAX) Fly for 17h 50m Arrive at 7:55am in Singapore (SIN)

Layover in Singapore for 2h 5m

Wed Nov 26th 2025 Singapore Airlines · SQ 8342 Depart at 10:00am from Singapore (SIN) Fly for 2h 0m Arrive at 11:00am in Ko Samui (USM)
€908

9:59am - 7:35pm
Tue Nov 25th 2025

45h 36m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Tue Nov 25th 2025 Hawaiian Airlines · HA 6705 Depart at 9:59am from Washington, D.C. (DCA) Fly for 5h 55m Arrive at 12:54pm in Los Angeles (LAX)

Layover in Los Angeles for 9h 41m

Tue Nov 25th 2025 Cathay Pacific · CX 881 Depart at 10:35pm from Los Angeles (LAX) Fly for 15h 55m Arrive at 6:30am in Hong Kong (HKG)

Layover in Hong Kong for 10h 35m

Thu Nov 27th 2025 Cathay Pacific · CX 6503 Depart at 5:05pm from Hong Kong (HKG) Fly for 3h 30m Arrive at 7:35pm in Ko Samui (USM)
€912

9:59am - 7:35pm
Wed Nov 26th 2025

45h 36m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Wed Nov 26th 2025 Alaska Airlines · AS 5 Depart at 9:59am from Washington, D.C. (DCA) Fly for 5h 55m Arrive at 12:54pm in Los Angeles (LAX)

Layover in Los Angeles for 9h 41m

Wed Nov 26th 2025 Cathay Pacific · CX 881 Depart at 10:35pm from Los Angeles (LAX) Fly for 15h 55m Arrive at 6:30am in Hong Kong (HKG)

Layover in Hong Kong for 10h 35m

Fri Nov 28th 2025 Cathay Pacific · CX 6503 Depart at 5:05pm from Hong Kong (HKG) Fly for 3h 30m Arrive at 7:35pm in Ko Samui (USM)
€913

9:59am - 7:35pm
Tue Dec 9th 2025

45h 36m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Tue Dec 9th 2025 Hawaiian Airlines · HA 6705 Depart at 9:59am from Washington, D.C. (DCA) Fly for 6h 6m Arrive at 1:05pm in Los Angeles (LAX)

Layover in Los Angeles for 8h 10m

Tue Dec 9th 2025 Cathay Pacific · CX 883 Depart at 9:15pm from Los Angeles (LAX) Fly for 15h 50m Arrive at 5:05am in Hong Kong (HKG)

Layover in Hong Kong for 12h 0m

Thu Dec 11th 2025 Cathay Pacific · CX 6503 Depart at 5:05pm from Hong Kong (HKG) Fly for 3h 30m Arrive at 7:35pm in Ko Samui (USM)
€937

9:59am - 8:00am
Wed Nov 26th 2025

34h 1m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Wed Nov 26th 2025 Alaska Airlines · AS 5 Depart at 9:59am from Washington, D.C. (DCA) Fly for 5h 55m Arrive at 12:54pm in Los Angeles (LAX)

Layover in Los Angeles for 6h 56m

Wed Nov 26th 2025 Singapore Airlines · SQ 35 Depart at 7:50pm from Los Angeles (LAX) Fly for 17h 40m Arrive at 5:30am in Singapore (SIN)

Layover in Singapore for 1h 30m

Fri Nov 28th 2025 Singapore Airlines · SQ 8340 Depart at 7:00am from Singapore (SIN) Fly for 2h 0m Arrive at 8:00am in Ko Samui (USM)
€937

5:30pm - 7:50am
Mon May 4th 2026

51h 20m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Mon May 4th 2026 Alaska Airlines · AS 3 Depart at 5:30pm from Washington, D.C. (DCA) Fly for 6h 2m Arrive at 8:32pm in Seattle (SEA)

Layover in Seattle for 13h 43m

Tue May 5th 2026 Singapore Airlines · SQ 27 Depart at 10:15am from Seattle (SEA) Fly for 16h 20m Arrive at 5:35pm in Singapore (SIN)

Layover in Singapore for 13h 25m

Thu May 7th 2026 Scoot · TR 640 Depart at 7:00am from Singapore (SIN) Fly for 1h 50m Arrive at 7:50am in Ko Samui (USM)
€949

8:00am - 9:10pm
Thu May 7th 2026

50h 10m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Thu May 7th 2026 Alaska Airlines · AS 1 Depart at 8:00am from Washington, D.C. (DCA) Fly for 5h 58m Arrive at 10:58am in Seattle (SEA)

Layover in Seattle for 23h 17m

Fri May 8th 2026 Singapore Airlines · SQ 27 Depart at 10:15am from Seattle (SEA) Fly for 16h 20m Arrive at 5:35pm in Singapore (SIN)

Layover in Singapore for 2h 40m

Sat May 9th 2026 Bangkok Airways · PG 962 Depart at 8:15pm from Singapore (SIN) Fly for 1h 55m Arrive at 9:10pm in Ko Samui (USM)
€971

9:59am - 4:45pm
Thu May 7th 2026

43h 46m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Thu May 7th 2026 Alaska Airlines · AS 5 Depart at 9:59am from Washington, D.C. (DCA) Fly for 6h 3m Arrive at 1:02pm in Los Angeles (LAX)

Layover in Los Angeles for 10h 38m

Thu May 7th 2026 Singapore Airlines · SQ 37 Depart at 11:40pm from Los Angeles (LAX) Fly for 17h 10m Arrive at 7:50am in Singapore (SIN)

Layover in Singapore for 8h 10m

Sat May 9th 2026 Scoot · TR 694 Depart at 4:00pm from Singapore (SIN) Fly for 1h 45m Arrive at 4:45pm in Ko Samui (USM)
€971

9:59am - 4:45pm
Wed Apr 22nd 2026

43h 46m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Wed Apr 22nd 2026 Alaska Airlines · AS 5 Depart at 9:59am from Washington, D.C. (DCA) Fly for 6h 3m Arrive at 1:02pm in Los Angeles (LAX)

Layover in Los Angeles for 7h 38m

Wed Apr 22nd 2026 Singapore Airlines · SQ 35 Depart at 8:40pm from Los Angeles (LAX) Fly for 17h 35m Arrive at 5:15am in Singapore (SIN)

Layover in Singapore for 10h 45m

Fri Apr 24th 2026 Scoot · TR 694 Depart at 4:00pm from Singapore (SIN) Fly for 1h 45m Arrive at 4:45pm in Ko Samui (USM)
€973

5:30pm - 9:10pm
Mon May 4th 2026

40h 40m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Mon May 4th 2026 Alaska Airlines · AS 3 Depart at 5:30pm from Washington, D.C. (DCA) Fly for 6h 2m Arrive at 8:32pm in Seattle (SEA)

Layover in Seattle for 13h 43m

Tue May 5th 2026 Singapore Airlines · SQ 27 Depart at 10:15am from Seattle (SEA) Fly for 16h 20m Arrive at 5:35pm in Singapore (SIN)

Layover in Singapore for 2h 40m

Wed May 6th 2026 Bangkok Airways · PG 962 Depart at 8:15pm from Singapore (SIN) Fly for 1h 55m Arrive at 9:10pm in Ko Samui (USM)
€978

9:59am - 11:10am
Thu May 7th 2026

38h 11m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Thu May 7th 2026 Alaska Airlines · AS 5 Depart at 9:59am from Washington, D.C. (DCA) Fly for 6h 3m Arrive at 1:02pm in Los Angeles (LAX)

Layover in Los Angeles for 10h 38m

Thu May 7th 2026 Singapore Airlines · SQ 37 Depart at 11:40pm from Los Angeles (LAX) Fly for 17h 10m Arrive at 7:50am in Singapore (SIN)

Layover in Singapore for 2h 25m

Sat May 9th 2026 Scoot · TR 642 Depart at 10:15am from Singapore (SIN) Fly for 1h 55m Arrive at 11:10am in Ko Samui (USM)
€989

9:59am - 4:45pm
Sun Apr 26th 2026

43h 46m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Sun Apr 26th 2026 Alaska Airlines · AS 5 Depart at 9:59am from Washington, D.C. (DCA) Fly for 6h 3m Arrive at 1:02pm in Los Angeles (LAX)

Layover in Los Angeles for 7h 38m

Sun Apr 26th 2026 Singapore Airlines · SQ 35 Depart at 8:40pm from Los Angeles (LAX) Fly for 17h 35m Arrive at 5:15am in Singapore (SIN)

Layover in Singapore for 10h 45m

Tue Apr 28th 2026 Scoot · TR 694 Depart at 4:00pm from Singapore (SIN) Fly for 1h 45m Arrive at 4:45pm in Ko Samui (USM)
€989

9:59am - 4:45pm
Mon May 4th 2026

43h 46m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Mon May 4th 2026 Alaska Airlines · AS 5 Depart at 9:59am from Washington, D.C. (DCA) Fly for 6h 3m Arrive at 1:02pm in Los Angeles (LAX)

Layover in Los Angeles for 10h 38m

Mon May 4th 2026 Singapore Airlines · SQ 37 Depart at 11:40pm from Los Angeles (LAX) Fly for 17h 10m Arrive at 7:50am in Singapore (SIN)

Layover in Singapore for 8h 10m

Wed May 6th 2026 Scoot · TR 694 Depart at 4:00pm from Singapore (SIN) Fly for 1h 45m Arrive at 4:45pm in Ko Samui (USM)
€990

5:30pm - 9:10pm
Mon Apr 27th 2026

40h 40m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Mon Apr 27th 2026 Alaska Airlines · AS 3 Depart at 5:30pm from Washington, D.C. (DCA) Fly for 6h 2m Arrive at 8:32pm in Seattle (SEA)

Layover in Seattle for 13h 43m

Tue Apr 28th 2026 Singapore Airlines · SQ 27 Depart at 10:15am from Seattle (SEA) Fly for 16h 20m Arrive at 5:35pm in Singapore (SIN)

Layover in Singapore for 2h 40m

Wed Apr 29th 2026 Bangkok Airways · PG 962 Depart at 8:15pm from Singapore (SIN) Fly for 1h 55m Arrive at 9:10pm in Ko Samui (USM)
€996

9:59am - 11:10am
Mon May 4th 2026

38h 11m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Mon May 4th 2026 Alaska Airlines · AS 5 Depart at 9:59am from Washington, D.C. (DCA) Fly for 6h 3m Arrive at 1:02pm in Los Angeles (LAX)

Layover in Los Angeles for 10h 38m

Mon May 4th 2026 Singapore Airlines · SQ 37 Depart at 11:40pm from Los Angeles (LAX) Fly for 17h 10m Arrive at 7:50am in Singapore (SIN)

Layover in Singapore for 2h 25m

Wed May 6th 2026 Scoot · TR 642 Depart at 10:15am from Singapore (SIN) Fly for 1h 55m Arrive at 11:10am in Ko Samui (USM)
€1002

6:10am - 7:35pm
Tue Jan 27th 2026

25h 25m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Tue Jan 27th 2026 Cathay Pacific · CX 7537 Depart at 6:10am from Washington, D.C. (DCA) Fly for 1h 17m Arrive at 7:27am in New York (JFK)

Layover in New York for 1h 33m

Tue Jan 27th 2026 Cathay Pacific · CX 841 Depart at 9:00am from New York (JFK) Fly for 16h 10m Arrive at 2:10pm in Hong Kong (HKG)

Layover in Hong Kong for 2h 55m

Wed Jan 28th 2026 Bangkok Airways · PG 806 Depart at 5:05pm from Hong Kong (HKG) Fly for 3h 30m Arrive at 7:35pm in Ko Samui (USM)
€1006

9:59am - 11:10am
Wed Apr 22nd 2026

38h 11m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Wed Apr 22nd 2026 Alaska Airlines · AS 5 Depart at 9:59am from Washington, D.C. (DCA) Fly for 6h 3m Arrive at 1:02pm in Los Angeles (LAX)

Layover in Los Angeles for 7h 38m

Wed Apr 22nd 2026 Singapore Airlines · SQ 35 Depart at 8:40pm from Los Angeles (LAX) Fly for 17h 35m Arrive at 5:15am in Singapore (SIN)

Layover in Singapore for 5h 0m

Fri Apr 24th 2026 Scoot · TR 642 Depart at 10:15am from Singapore (SIN) Fly for 1h 55m Arrive at 11:10am in Ko Samui (USM)
€1006

5:30pm - 9:10pm
Thu May 7th 2026

40h 40m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Thu May 7th 2026 Alaska Airlines · AS 3 Depart at 5:30pm from Washington, D.C. (DCA) Fly for 6h 2m Arrive at 8:32pm in Seattle (SEA)

Layover in Seattle for 13h 43m

Fri May 8th 2026 Singapore Airlines · SQ 27 Depart at 10:15am from Seattle (SEA) Fly for 16h 20m Arrive at 5:35pm in Singapore (SIN)

Layover in Singapore for 2h 40m

Sat May 9th 2026 Bangkok Airways · PG 962 Depart at 8:15pm from Singapore (SIN) Fly for 1h 55m Arrive at 9:10pm in Ko Samui (USM)
€1007

6:10am - 7:35pm
Mon Jan 26th 2026

25h 25m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Mon Jan 26th 2026 Cathay Pacific · CX 7537 Depart at 6:10am from Washington, D.C. (DCA) Fly for 1h 17m Arrive at 7:27am in New York (JFK)

Layover in New York for 1h 33m

Mon Jan 26th 2026 Cathay Pacific · CX 841 Depart at 9:00am from New York (JFK) Fly for 16h 10m Arrive at 2:10pm in Hong Kong (HKG)

Layover in Hong Kong for 2h 55m

Tue Jan 27th 2026 Bangkok Airways · PG 806 Depart at 5:05pm from Hong Kong (HKG) Fly for 3h 30m Arrive at 7:35pm in Ko Samui (USM)
€1009

6:10am - 7:35pm
Mon Jan 19th 2026

25h 25m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Mon Jan 19th 2026 Cathay Pacific · CX 7537 Depart at 6:10am from Washington, D.C. (DCA) Fly for 1h 17m Arrive at 7:27am in New York (JFK)

Layover in New York for 1h 33m

Mon Jan 19th 2026 Cathay Pacific · CX 841 Depart at 9:00am from New York (JFK) Fly for 16h 10m Arrive at 2:10pm in Hong Kong (HKG)

Layover in Hong Kong for 2h 55m

Tue Jan 20th 2026 Bangkok Airways · PG 806 Depart at 5:05pm from Hong Kong (HKG) Fly for 3h 30m Arrive at 7:35pm in Ko Samui (USM)
€1022

9:59am - 11:10am
Sun Apr 26th 2026

38h 11m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Sun Apr 26th 2026 Alaska Airlines · AS 5 Depart at 9:59am from Washington, D.C. (DCA) Fly for 6h 3m Arrive at 1:02pm in Los Angeles (LAX)

Layover in Los Angeles for 7h 38m

Sun Apr 26th 2026 Singapore Airlines · SQ 35 Depart at 8:40pm from Los Angeles (LAX) Fly for 17h 35m Arrive at 5:15am in Singapore (SIN)

Layover in Singapore for 5h 0m

Tue Apr 28th 2026 Scoot · TR 642 Depart at 10:15am from Singapore (SIN) Fly for 1h 55m Arrive at 11:10am in Ko Samui (USM)
€1030

6:10am - 7:35pm
Wed Jan 21st 2026

25h 25m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Wed Jan 21st 2026 Cathay Pacific · CX 7537 Depart at 6:10am from Washington, D.C. (DCA) Fly for 1h 17m Arrive at 7:27am in New York (JFK)

Layover in New York for 1h 33m

Wed Jan 21st 2026 Cathay Pacific · CX 841 Depart at 9:00am from New York (JFK) Fly for 16h 10m Arrive at 2:10pm in Hong Kong (HKG)

Layover in Hong Kong for 2h 55m

Thu Jan 22nd 2026 Bangkok Airways · PG 806 Depart at 5:05pm from Hong Kong (HKG) Fly for 3h 30m Arrive at 7:35pm in Ko Samui (USM)
€1035

6:10am - 7:35pm
Thu Jan 22nd 2026

25h 25m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Thu Jan 22nd 2026 Cathay Pacific · CX 7537 Depart at 6:10am from Washington, D.C. (DCA) Fly for 1h 17m Arrive at 7:27am in New York (JFK)

Layover in New York for 1h 33m

Thu Jan 22nd 2026 Cathay Pacific · CX 841 Depart at 9:00am from New York (JFK) Fly for 16h 10m Arrive at 2:10pm in Hong Kong (HKG)

Layover in Hong Kong for 2h 55m

Fri Jan 23rd 2026 Bangkok Airways · PG 806 Depart at 5:05pm from Hong Kong (HKG) Fly for 3h 30m Arrive at 7:35pm in Ko Samui (USM)
€1035

6:10am - 7:35pm
Wed Jan 28th 2026

25h 25m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Wed Jan 28th 2026 Cathay Pacific · CX 7537 Depart at 6:10am from Washington, D.C. (DCA) Fly for 1h 17m Arrive at 7:27am in New York (JFK)

Layover in New York for 1h 33m

Wed Jan 28th 2026 Cathay Pacific · CX 841 Depart at 9:00am from New York (JFK) Fly for 16h 10m Arrive at 2:10pm in Hong Kong (HKG)

Layover in Hong Kong for 2h 55m

Thu Jan 29th 2026 Bangkok Airways · PG 806 Depart at 5:05pm from Hong Kong (HKG) Fly for 3h 30m Arrive at 7:35pm in Ko Samui (USM)
€1035

6:10am - 7:35pm
Mon Jan 12th 2026

25h 25m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Mon Jan 12th 2026 Cathay Pacific · CX 7537 Depart at 6:10am from Washington, D.C. (DCA) Fly for 1h 17m Arrive at 7:27am in New York (JFK)

Layover in New York for 1h 33m

Mon Jan 12th 2026 Cathay Pacific · CX 841 Depart at 9:00am from New York (JFK) Fly for 16h 10m Arrive at 2:10pm in Hong Kong (HKG)

Layover in Hong Kong for 2h 55m

Tue Jan 13th 2026 Bangkok Airways · PG 806 Depart at 5:05pm from Hong Kong (HKG) Fly for 3h 30m Arrive at 7:35pm in Ko Samui (USM)
€1039

6:10am - 7:35pm
Tue Jan 13th 2026

25h 25m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Tue Jan 13th 2026 Cathay Pacific · CX 7537 Depart at 6:10am from Washington, D.C. (DCA) Fly for 1h 17m Arrive at 7:27am in New York (JFK)

Layover in New York for 1h 33m

Tue Jan 13th 2026 Cathay Pacific · CX 841 Depart at 9:00am from New York (JFK) Fly for 16h 10m Arrive at 2:10pm in Hong Kong (HKG)

Layover in Hong Kong for 2h 55m

Wed Jan 14th 2026 Bangkok Airways · PG 806 Depart at 5:05pm from Hong Kong (HKG) Fly for 3h 30m Arrive at 7:35pm in Ko Samui (USM)
€1044

9:59am - 11:10am
Sat May 2nd 2026

38h 11m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Sat May 2nd 2026 Alaska Airlines · AS 5 Depart at 9:59am from Washington, D.C. (DCA) Fly for 6h 3m Arrive at 1:02pm in Los Angeles (LAX)

Layover in Los Angeles for 10h 38m

Sat May 2nd 2026 Singapore Airlines · SQ 37 Depart at 11:40pm from Los Angeles (LAX) Fly for 17h 10m Arrive at 7:50am in Singapore (SIN)

Layover in Singapore for 2h 25m

Mon May 4th 2026 Scoot · TR 642 Depart at 10:15am from Singapore (SIN) Fly for 1h 55m Arrive at 11:10am in Ko Samui (USM)
€1050

6:10am - 7:35pm
Wed Jan 14th 2026

25h 25m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Wed Jan 14th 2026 Cathay Pacific · CX 7537 Depart at 6:10am from Washington, D.C. (DCA) Fly for 1h 17m Arrive at 7:27am in New York (JFK)

Layover in New York for 1h 33m

Wed Jan 14th 2026 Cathay Pacific · CX 841 Depart at 9:00am from New York (JFK) Fly for 16h 10m Arrive at 2:10pm in Hong Kong (HKG)

Layover in Hong Kong for 2h 55m

Thu Jan 15th 2026 Bangkok Airways · PG 806 Depart at 5:05pm from Hong Kong (HKG) Fly for 3h 30m Arrive at 7:35pm in Ko Samui (USM)
€1064

6:35pm - 6:35pm
Sun May 10th 2026

37h 0m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Sun May 10th 2026 Alaska Airlines · AS 7 Depart at 6:35pm from Washington, D.C. (DCA) Fly for 6h 22m Arrive at 9:57pm in San Francisco (SFO)

Layover in San Francisco for 2h 23m

Mon May 11th 2026 Cathay Pacific · CX 873 Depart at 12:20am from San Francisco (SFO) Fly for 15h 0m Arrive at 6:20am in Hong Kong (HKG)

Layover in Hong Kong for 9h 55m

Tue May 12th 2026 Bangkok Airways · PG 806 Depart at 4:15pm from Hong Kong (HKG) Fly for 3h 20m Arrive at 6:35pm in Ko Samui (USM)
€1221

6:35am - 6:35pm
Wed May 13th 2026

25h 0m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Wed May 13th 2026 Cathay Pacific · CX 7609 Depart at 6:35am from Washington, D.C. (DCA) Fly for 1h 19m Arrive at 7:54am in New York (JFK)

Layover in New York for 2h 6m

Wed May 13th 2026 Cathay Pacific · CX 841 Depart at 10:00am from New York (JFK) Fly for 15h 55m Arrive at 1:55pm in Hong Kong (HKG)

Layover in Hong Kong for 2h 20m

Thu May 14th 2026 Bangkok Airways · PG 806 Depart at 4:15pm from Hong Kong (HKG) Fly for 3h 20m Arrive at 6:35pm in Ko Samui (USM)
€1225

6:35am - 6:35pm
Tue Apr 14th 2026

25h 0m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Tue Apr 14th 2026 Cathay Pacific · CX 7609 Depart at 6:35am from Washington, D.C. (DCA) Fly for 1h 19m Arrive at 7:54am in New York (JFK)

Layover in New York for 2h 6m

Tue Apr 14th 2026 Cathay Pacific · CX 841 Depart at 10:00am from New York (JFK) Fly for 15h 55m Arrive at 1:55pm in Hong Kong (HKG)

Layover in Hong Kong for 2h 20m

Wed Apr 15th 2026 Bangkok Airways · PG 806 Depart at 4:15pm from Hong Kong (HKG) Fly for 3h 20m Arrive at 6:35pm in Ko Samui (USM)
€1225

6:35am - 6:35pm
Wed Apr 8th 2026

25h 0m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Wed Apr 8th 2026 Cathay Pacific · CX 7609 Depart at 6:35am from Washington, D.C. (DCA) Fly for 1h 19m Arrive at 7:54am in New York (JFK)

Layover in New York for 2h 6m

Wed Apr 8th 2026 Cathay Pacific · CX 841 Depart at 10:00am from New York (JFK) Fly for 15h 55m Arrive at 1:55pm in Hong Kong (HKG)

Layover in Hong Kong for 2h 20m

Thu Apr 9th 2026 Bangkok Airways · PG 806 Depart at 4:15pm from Hong Kong (HKG) Fly for 3h 20m Arrive at 6:35pm in Ko Samui (USM)
€1225

6:35am - 6:35pm
Wed May 6th 2026

25h 0m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Wed May 6th 2026 Cathay Pacific · CX 7609 Depart at 6:35am from Washington, D.C. (DCA) Fly for 1h 19m Arrive at 7:54am in New York (JFK)

Layover in New York for 2h 6m

Wed May 6th 2026 Cathay Pacific · CX 841 Depart at 10:00am from New York (JFK) Fly for 15h 55m Arrive at 1:55pm in Hong Kong (HKG)

Layover in Hong Kong for 2h 20m

Thu May 7th 2026 Bangkok Airways · PG 806 Depart at 4:15pm from Hong Kong (HKG) Fly for 3h 20m Arrive at 6:35pm in Ko Samui (USM)
€1225

6:35am - 6:35pm
Mon May 11th 2026

25h 0m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Mon May 11th 2026 Cathay Pacific · CX 7609 Depart at 6:35am from Washington, D.C. (DCA) Fly for 1h 19m Arrive at 7:54am in New York (JFK)

Layover in New York for 2h 6m

Mon May 11th 2026 Cathay Pacific · CX 841 Depart at 10:00am from New York (JFK) Fly for 15h 55m Arrive at 1:55pm in Hong Kong (HKG)

Layover in Hong Kong for 2h 20m

Tue May 12th 2026 Bangkok Airways · PG 806 Depart at 4:15pm from Hong Kong (HKG) Fly for 3h 20m Arrive at 6:35pm in Ko Samui (USM)
€1232

6:35am - 6:35pm
Tue Apr 28th 2026

25h 0m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Tue Apr 28th 2026 Cathay Pacific · CX 7609 Depart at 6:35am from Washington, D.C. (DCA) Fly for 1h 19m Arrive at 7:54am in New York (JFK)

Layover in New York for 2h 6m

Tue Apr 28th 2026 Cathay Pacific · CX 841 Depart at 10:00am from New York (JFK) Fly for 15h 55m Arrive at 1:55pm in Hong Kong (HKG)

Layover in Hong Kong for 2h 20m

Wed Apr 29th 2026 Bangkok Airways · PG 806 Depart at 4:15pm from Hong Kong (HKG) Fly for 3h 20m Arrive at 6:35pm in Ko Samui (USM)
€1278

6:35am - 6:35pm
Fri May 8th 2026

25h 0m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Fri May 8th 2026 Cathay Pacific · CX 7609 Depart at 6:35am from Washington, D.C. (DCA) Fly for 1h 19m Arrive at 7:54am in New York (JFK)

Layover in New York for 2h 6m

Fri May 8th 2026 Cathay Pacific · CX 841 Depart at 10:00am from New York (JFK) Fly for 15h 55m Arrive at 1:55pm in Hong Kong (HKG)

Layover in Hong Kong for 2h 20m

Sat May 9th 2026 Bangkok Airways · PG 806 Depart at 4:15pm from Hong Kong (HKG) Fly for 3h 20m Arrive at 6:35pm in Ko Samui (USM)
€1278

6:35am - 6:35pm
Sun May 10th 2026

25h 0m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Sun May 10th 2026 Cathay Pacific · CX 7609 Depart at 6:35am from Washington, D.C. (DCA) Fly for 1h 19m Arrive at 7:54am in New York (JFK)

Layover in New York for 2h 6m

Sun May 10th 2026 Cathay Pacific · CX 841 Depart at 10:00am from New York (JFK) Fly for 15h 55m Arrive at 1:55pm in Hong Kong (HKG)

Layover in Hong Kong for 2h 20m

Mon May 11th 2026 Bangkok Airways · PG 806 Depart at 4:15pm from Hong Kong (HKG) Fly for 3h 20m Arrive at 6:35pm in Ko Samui (USM)
€1283

6:35am - 6:35pm
Sun Apr 12th 2026

25h 0m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Sun Apr 12th 2026 Cathay Pacific · CX 7609 Depart at 6:35am from Washington, D.C. (DCA) Fly for 1h 19m Arrive at 7:54am in New York (JFK)

Layover in New York for 2h 6m

Sun Apr 12th 2026 Cathay Pacific · CX 841 Depart at 10:00am from New York (JFK) Fly for 15h 55m Arrive at 1:55pm in Hong Kong (HKG)

Layover in Hong Kong for 2h 20m

Mon Apr 13th 2026 Bangkok Airways · PG 806 Depart at 4:15pm from Hong Kong (HKG) Fly for 3h 20m Arrive at 6:35pm in Ko Samui (USM)
€1283

6:35am - 6:35pm
Fri Apr 24th 2026

25h 0m
Washington, D.C. (DCA) → Ko Samui (USM)

2 Stops

Fri Apr 24th 2026 Cathay Pacific · CX 7609 Depart at 6:35am from Washington, D.C. (DCA) Fly for 1h 19m Arrive at 7:54am in New York (JFK)

Layover in New York for 2h 6m

Fri Apr 24th 2026 Cathay Pacific · CX 841 Depart at 10:00am from New York (JFK) Fly for 15h 55m Arrive at 1:55pm in Hong Kong (HKG)

Layover in Hong Kong for 2h 20m

Sat Apr 25th 2026 Bangkok Airways · PG 806 Depart at 4:15pm from Hong Kong (HKG) Fly for 3h 20m Arrive at 6:35pm in Ko Samui (USM)

Sarah Belizaire

@sarahbb1

Have flexible travel plans or looking for alternative routes given the chaos? Check out all the connection possibilities via a super helpful site created by @ismaelyws flightlist.io thanks to @andy_travels for the recommendation #travel #flights

John Ford

@eyupitsjohn

There seem to be lots of sites launching at the moment that promise to find you cheap flights but not many have the professional finish of Flightlist by @ismaelyws #travel #flights

Roaming Sonaa

@roamingsonaa

For people wanting to maximize their trips, Flightlist is my newest travel hack for uncovering the coolest routes at irresistible prices. No stress, no annoying ads — just seamless flight booking with amazing functionality.

Andy Travels

@andy_travels

@ismaelyws Just tried out Flightlist for the first time. Really nice idea, well made, and just what I need at the moment 👍

Travel With Bender

@travelwitbender

Did you spot my recent article about how to score cheap one way flights? ✈️ FlightList is my new secret tool for discovering cheap routes, within a departure date range. Plus you can also search by country/region for departures & destinations. Powerful! 💪

Wesley Mergard

@travel.with.wes

One useful tool I've found for evaluating different departure and return dates is called FlightList.io. You can quickly scan different travel date ranges, carriers and one way flight options to easily determine the cheapest flight combinations for your trip.

Flights from Washington to Ko Samui (DCA to USM)

Sarah Belizaire

John Ford

Roaming Sonaa

Andy Travels

Travel With Bender

Wesley Mergard

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