Flights from Baltimore to Ko Samui (BWI to USM)

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€586

7:14pm - 6:50pm
Sat Feb 7th 2026

59h 36m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Sat Feb 7th 2026 Hawaiian Airlines · HA 4842 Depart at 7:14pm from Washington, D.C. (BWI) Fly for 6h 0m Arrive at 10:14pm in Seattle (SEA)

Layover in Seattle for 10h 31m

Sun Feb 8th 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 24h 15m

Tue Feb 10th 2026 Scoot · TR 648 Depart at 6:00pm from Singapore (SIN) Fly for 1h 50m Arrive at 6:50pm in Ko Samui (USM)
€588

6:46pm - 8:00am
Sat Feb 28th 2026

49h 14m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Sat Feb 28th 2026 Hawaiian Airlines · HA 4842 Depart at 6:46pm from Washington, D.C. (BWI) Fly for 6h 4m Arrive at 9:50pm in Seattle (SEA)

Layover in Seattle for 10h 55m

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)
€594

7:14pm - 8:00am
Sat Feb 7th 2026

48h 46m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Sat Feb 7th 2026 Hawaiian Airlines · HA 4842 Depart at 7:14pm from Washington, D.C. (BWI) Fly for 6h 0m Arrive at 10:14pm in Seattle (SEA)

Layover in Seattle for 10h 31m

Sun Feb 8th 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 Feb 10th 2026 Scoot · TR 640 Depart at 7:00am from Singapore (SIN) Fly for 2h 0m Arrive at 8:00am in Ko Samui (USM)
€606

7:14pm - 8:00am
Thu Feb 5th 2026

48h 46m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Thu Feb 5th 2026 Hawaiian Airlines · HA 4842 Depart at 7:14pm from Washington, D.C. (BWI) Fly for 6h 0m Arrive at 10:14pm in Seattle (SEA)

Layover in Seattle for 10h 31m

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)
€608

6:46pm - 8:00am
Fri Mar 6th 2026

49h 14m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Fri Mar 6th 2026 Hawaiian Airlines · HA 4842 Depart at 6:46pm from Washington, D.C. (BWI) Fly for 6h 4m Arrive at 9:50pm in Seattle (SEA)

Layover in Seattle for 10h 55m

Sat Mar 7th 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

Mon Mar 9th 2026 Scoot · TR 640 Depart at 7:00am from Singapore (SIN) Fly for 2h 0m Arrive at 8:00am in Ko Samui (USM)
€608

6:46pm - 8:00am
Thu Feb 19th 2026

49h 14m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Thu Feb 19th 2026 Hawaiian Airlines · HA 4842 Depart at 6:46pm from Washington, D.C. (BWI) Fly for 6h 4m Arrive at 9:50pm in Seattle (SEA)

Layover in Seattle for 10h 55m

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)
€623

6:46pm - 11:00am
Sat Feb 28th 2026

52h 14m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Sat Feb 28th 2026 Hawaiian Airlines · HA 4842 Depart at 6:46pm from Washington, D.C. (BWI) Fly for 6h 4m Arrive at 9:50pm in Seattle (SEA)

Layover in Seattle for 10h 55m

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 16h 15m

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)
€626

7:14pm - 6:50pm
Mon Jan 26th 2026

59h 36m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Mon Jan 26th 2026 Hawaiian Airlines · HA 4842 Depart at 7:14pm from Washington, D.C. (BWI) Fly for 6h 0m Arrive at 10:14pm in Seattle (SEA)

Layover in Seattle for 10h 31m

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 24h 15m

Thu Jan 29th 2026 Scoot · TR 648 Depart at 6:00pm from Singapore (SIN) Fly for 1h 50m Arrive at 6:50pm in Ko Samui (USM)
€629

7:14pm - 5:10pm
Mon Feb 2nd 2026

57h 56m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Mon Feb 2nd 2026 Hawaiian Airlines · HA 4842 Depart at 7:14pm from Washington, D.C. (BWI) Fly for 6h 0m Arrive at 10:14pm in Seattle (SEA)

Layover in Seattle for 10h 31m

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 22h 25m

Thu Feb 5th 2026 Scoot · TR 694 Depart at 4:10pm from Singapore (SIN) Fly for 2h 0m Arrive at 5:10pm in Ko Samui (USM)
€640

7:14pm - 8:00am
Mon Jan 26th 2026

48h 46m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Mon Jan 26th 2026 Hawaiian Airlines · HA 4842 Depart at 7:14pm from Washington, D.C. (BWI) Fly for 6h 0m Arrive at 10:14pm in Seattle (SEA)

Layover in Seattle for 10h 31m

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)
€642

7:14pm - 8:00am
Mon Feb 2nd 2026

48h 46m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Mon Feb 2nd 2026 Hawaiian Airlines · HA 4842 Depart at 7:14pm from Washington, D.C. (BWI) Fly for 6h 0m Arrive at 10:14pm in Seattle (SEA)

Layover in Seattle for 10h 31m

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)
€643

6:46pm - 9:05pm
Fri Mar 6th 2026

38h 19m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Fri Mar 6th 2026 Hawaiian Airlines · HA 4842 Depart at 6:46pm from Washington, D.C. (BWI) Fly for 6h 4m Arrive at 9:50pm in Seattle (SEA)

Layover in Seattle for 10h 55m

Sat Mar 7th 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

Sun Mar 8th 2026 Bangkok Airways · PG 962 Depart at 8:10pm from Singapore (SIN) Fly for 1h 55m Arrive at 9:05pm in Ko Samui (USM)
€643

6:46pm - 9:05pm
Fri Mar 13th 2026

39h 19m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Fri Mar 13th 2026 Hawaiian Airlines · HA 4842 Depart at 6:46pm from Washington, D.C. (BWI) Fly for 6h 4m Arrive at 9:50pm in Seattle (SEA)

Layover in Seattle for 11h 55m

Sat Mar 14th 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

Sun Mar 15th 2026 Bangkok Airways · PG 962 Depart at 8:10pm from Singapore (SIN) Fly for 1h 55m Arrive at 9:05pm in Ko Samui (USM)
€644

7:14pm - 5:10pm
Sat Jan 31st 2026

57h 56m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Sat Jan 31st 2026 Hawaiian Airlines · HA 4842 Depart at 7:14pm from Washington, D.C. (BWI) Fly for 6h 0m Arrive at 10:14pm in Seattle (SEA)

Layover in Seattle for 10h 31m

Sun Feb 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 22h 25m

Tue Feb 3rd 2026 Scoot · TR 694 Depart at 4:10pm from Singapore (SIN) Fly for 2h 0m Arrive at 5:10pm in Ko Samui (USM)
€646

7:14pm - 8:00am
Sat Jan 24th 2026

48h 46m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Sat Jan 24th 2026 Hawaiian Airlines · HA 4842 Depart at 7:14pm from Washington, D.C. (BWI) Fly for 6h 0m Arrive at 10:14pm in Seattle (SEA)

Layover in Seattle for 10h 31m

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)
€646

6:46pm - 8:00am
Sat Mar 7th 2026

49h 14m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Sat Mar 7th 2026 Hawaiian Airlines · HA 4842 Depart at 6:46pm from Washington, D.C. (BWI) Fly for 6h 4m Arrive at 9:50pm in Seattle (SEA)

Layover in Seattle for 10h 55m

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 13h 15m

Tue Mar 10th 2026 Scoot · TR 640 Depart at 7:00am from Singapore (SIN) Fly for 2h 0m Arrive at 8:00am in Ko Samui (USM)
€646

6:46pm - 5:10pm
Wed Mar 4th 2026

58h 24m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Wed Mar 4th 2026 Hawaiian Airlines · HA 4842 Depart at 6:46pm from Washington, D.C. (BWI) Fly for 6h 4m Arrive at 9:50pm in Seattle (SEA)

Layover in Seattle for 10h 55m

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 22h 25m

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)
€646

6:46pm - 5:10pm
Wed Feb 25th 2026

58h 24m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Wed Feb 25th 2026 Hawaiian Airlines · HA 4842 Depart at 6:46pm from Washington, D.C. (BWI) Fly for 6h 4m Arrive at 9:50pm in Seattle (SEA)

Layover in Seattle for 10h 55m

Thu Feb 26th 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 22h 25m

Sat Feb 28th 2026 Scoot · TR 694 Depart at 4:10pm from Singapore (SIN) Fly for 2h 0m Arrive at 5:10pm in Ko Samui (USM)
€646

7:14pm - 6:50pm
Wed Feb 4th 2026

59h 36m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Wed Feb 4th 2026 Hawaiian Airlines · HA 4842 Depart at 7:14pm from Washington, D.C. (BWI) Fly for 6h 0m Arrive at 10:14pm in Seattle (SEA)

Layover in Seattle for 10h 31m

Thu Feb 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 24h 15m

Sat Feb 7th 2026 Scoot · TR 648 Depart at 6:00pm from Singapore (SIN) Fly for 1h 50m Arrive at 6:50pm in Ko Samui (USM)
€652

7:14pm - 5:10pm
Sat Jan 10th 2026

57h 56m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Sat Jan 10th 2026 Hawaiian Airlines · HA 4842 Depart at 7:14pm from Washington, D.C. (BWI) Fly for 6h 0m Arrive at 10:14pm in Seattle (SEA)

Layover in Seattle for 10h 31m

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 22h 25m

Tue Jan 13th 2026 Scoot · TR 694 Depart at 4:10pm from Singapore (SIN) Fly for 2h 0m Arrive at 5:10pm in Ko Samui (USM)
€652

7:14pm - 6:50pm
Wed Jan 28th 2026

59h 36m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Wed Jan 28th 2026 Hawaiian Airlines · HA 4842 Depart at 7:14pm from Washington, D.C. (BWI) Fly for 6h 0m Arrive at 10:14pm in Seattle (SEA)

Layover in Seattle for 10h 31m

Thu Jan 29th 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 24h 15m

Sat Jan 31st 2026 Scoot · TR 648 Depart at 6:00pm from Singapore (SIN) Fly for 1h 50m Arrive at 6:50pm in Ko Samui (USM)
€652

7:14pm - 6:50pm
Wed Jan 14th 2026

59h 36m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Wed Jan 14th 2026 Hawaiian Airlines · HA 4842 Depart at 7:14pm from Washington, D.C. (BWI) Fly for 6h 0m Arrive at 10:14pm in Seattle (SEA)

Layover in Seattle for 10h 31m

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 24h 15m

Sat Jan 17th 2026 Scoot · TR 648 Depart at 6:00pm from Singapore (SIN) Fly for 1h 50m Arrive at 6:50pm in Ko Samui (USM)
€652

7:14pm - 6:50pm
Wed Jan 21st 2026

59h 36m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Wed Jan 21st 2026 Hawaiian Airlines · HA 4842 Depart at 7:14pm from Washington, D.C. (BWI) Fly for 6h 0m Arrive at 10:14pm in Seattle (SEA)

Layover in Seattle for 10h 31m

Thu Jan 22nd 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 24h 15m

Sat Jan 24th 2026 Scoot · TR 648 Depart at 6:00pm from Singapore (SIN) Fly for 1h 50m Arrive at 6:50pm in Ko Samui (USM)
€653

6:46pm - 5:10pm
Wed Feb 18th 2026

58h 24m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Wed Feb 18th 2026 Hawaiian Airlines · HA 4842 Depart at 6:46pm from Washington, D.C. (BWI) Fly for 6h 4m Arrive at 9:50pm in Seattle (SEA)

Layover in Seattle for 10h 55m

Thu Feb 19th 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 22h 25m

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)
€663

7:14pm - 8:00am
Fri Jan 16th 2026

48h 46m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Fri Jan 16th 2026 Hawaiian Airlines · HA 4842 Depart at 7:14pm from Washington, D.C. (BWI) Fly for 6h 0m Arrive at 10:14pm in Seattle (SEA)

Layover in Seattle for 10h 31m

Sat Jan 17th 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

Mon Jan 19th 2026 Scoot · TR 640 Depart at 7:00am from Singapore (SIN) Fly for 2h 0m Arrive at 8:00am in Ko Samui (USM)
€663

7:14pm - 8:00am
Thu Jan 22nd 2026

48h 46m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Thu Jan 22nd 2026 Hawaiian Airlines · HA 4842 Depart at 7:14pm from Washington, D.C. (BWI) Fly for 6h 0m Arrive at 10:14pm in Seattle (SEA)

Layover in Seattle for 10h 31m

Fri Jan 23rd 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 25th 2026 Scoot · TR 640 Depart at 7:00am from Singapore (SIN) Fly for 2h 0m Arrive at 8:00am in Ko Samui (USM)
€664

7:14pm - 8:00am
Sat Jan 31st 2026

48h 46m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Sat Jan 31st 2026 Hawaiian Airlines · HA 4842 Depart at 7:14pm from Washington, D.C. (BWI) Fly for 6h 0m Arrive at 10:14pm in Seattle (SEA)

Layover in Seattle for 10h 31m

Sun Feb 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 Feb 3rd 2026 Scoot · TR 640 Depart at 7:00am from Singapore (SIN) Fly for 2h 0m Arrive at 8:00am in Ko Samui (USM)
€664

7:14pm - 8:00am
Wed Jan 21st 2026

48h 46m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Wed Jan 21st 2026 Hawaiian Airlines · HA 4842 Depart at 7:14pm from Washington, D.C. (BWI) Fly for 6h 0m Arrive at 10:14pm in Seattle (SEA)

Layover in Seattle for 10h 31m

Thu Jan 22nd 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 24th 2026 Scoot · TR 640 Depart at 7:00am from Singapore (SIN) Fly for 2h 0m Arrive at 8:00am in Ko Samui (USM)
€665

6:46pm - 8:00am
Wed Feb 25th 2026

49h 14m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Wed Feb 25th 2026 Hawaiian Airlines · HA 4842 Depart at 6:46pm from Washington, D.C. (BWI) Fly for 6h 4m Arrive at 9:50pm in Seattle (SEA)

Layover in Seattle for 10h 55m

Thu Feb 26th 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 Feb 28th 2026 Scoot · TR 640 Depart at 7:00am from Singapore (SIN) Fly for 2h 0m Arrive at 8:00am in Ko Samui (USM)
€665

6:46pm - 8:00am
Fri Feb 20th 2026

49h 14m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Fri Feb 20th 2026 Hawaiian Airlines · HA 4842 Depart at 6:46pm from Washington, D.C. (BWI) Fly for 6h 4m Arrive at 9:50pm in Seattle (SEA)

Layover in Seattle for 10h 55m

Sat Feb 21st 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

Mon Feb 23rd 2026 Scoot · TR 640 Depart at 7:00am from Singapore (SIN) Fly for 2h 0m Arrive at 8:00am in Ko Samui (USM)
€665

6:46pm - 8:00am
Thu Mar 5th 2026

49h 14m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Thu Mar 5th 2026 Hawaiian Airlines · HA 4842 Depart at 6:46pm from Washington, D.C. (BWI) Fly for 6h 4m Arrive at 9:50pm in Seattle (SEA)

Layover in Seattle for 10h 55m

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

6:46pm - 8:00am
Fri Feb 27th 2026

49h 14m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Fri Feb 27th 2026 Hawaiian Airlines · HA 4842 Depart at 6:46pm from Washington, D.C. (BWI) Fly for 6h 4m Arrive at 9:50pm in Seattle (SEA)

Layover in Seattle for 10h 55m

Sat Feb 28th 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

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

6:46pm - 8:00am
Mon Mar 9th 2026

50h 14m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Mon Mar 9th 2026 Hawaiian Airlines · HA 4842 Depart at 6:46pm from Washington, D.C. (BWI) Fly for 6h 4m Arrive at 9:50pm in Seattle (SEA)

Layover in Seattle for 11h 55m

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 13h 15m

Thu Mar 12th 2026 Scoot · TR 640 Depart at 7:00am from Singapore (SIN) Fly for 2h 0m Arrive at 8:00am in Ko Samui (USM)
€666

7:14pm - 5:10pm
Wed Feb 4th 2026

57h 56m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Wed Feb 4th 2026 Hawaiian Airlines · HA 4842 Depart at 7:14pm from Washington, D.C. (BWI) Fly for 6h 0m Arrive at 10:14pm in Seattle (SEA)

Layover in Seattle for 10h 31m

Thu Feb 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 22h 25m

Sat Feb 7th 2026 Scoot · TR 694 Depart at 4:10pm from Singapore (SIN) Fly for 2h 0m Arrive at 5:10pm in Ko Samui (USM)
€671

7:14pm - 8:00am
Fri Jan 30th 2026

48h 46m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Fri Jan 30th 2026 Hawaiian Airlines · HA 4842 Depart at 7:14pm from Washington, D.C. (BWI) Fly for 6h 0m Arrive at 10:14pm in Seattle (SEA)

Layover in Seattle for 10h 31m

Sat Jan 31st 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

Mon Feb 2nd 2026 Scoot · TR 640 Depart at 7:00am from Singapore (SIN) Fly for 2h 0m Arrive at 8:00am in Ko Samui (USM)
€671

7:14pm - 5:10pm
Thu Jan 29th 2026

57h 56m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Thu Jan 29th 2026 Hawaiian Airlines · HA 4842 Depart at 7:14pm from Washington, D.C. (BWI) Fly for 6h 0m Arrive at 10:14pm in Seattle (SEA)

Layover in Seattle for 10h 31m

Fri Jan 30th 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 22h 25m

Sun Feb 1st 2026 Scoot · TR 694 Depart at 4:10pm from Singapore (SIN) Fly for 2h 0m Arrive at 5:10pm in Ko Samui (USM)
€671

7:14pm - 6:50pm
Mon Jan 12th 2026

59h 36m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Mon Jan 12th 2026 Hawaiian Airlines · HA 4842 Depart at 7:14pm from Washington, D.C. (BWI) Fly for 6h 0m Arrive at 10:14pm in Seattle (SEA)

Layover in Seattle for 10h 31m

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 24h 15m

Thu Jan 15th 2026 Scoot · TR 648 Depart at 6:00pm from Singapore (SIN) Fly for 1h 50m Arrive at 6:50pm in Ko Samui (USM)
€673

6:46pm - 8:00am
Mon Feb 23rd 2026

49h 14m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Mon Feb 23rd 2026 Hawaiian Airlines · HA 4842 Depart at 6:46pm from Washington, D.C. (BWI) Fly for 6h 4m Arrive at 9:50pm in Seattle (SEA)

Layover in Seattle for 10h 55m

Tue Feb 24th 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 26th 2026 Scoot · TR 640 Depart at 7:00am from Singapore (SIN) Fly for 2h 0m Arrive at 8:00am in Ko Samui (USM)
€673

6:46pm - 8:00am
Thu Feb 26th 2026

49h 14m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Thu Feb 26th 2026 Hawaiian Airlines · HA 4842 Depart at 6:46pm from Washington, D.C. (BWI) Fly for 6h 4m Arrive at 9:50pm in Seattle (SEA)

Layover in Seattle for 10h 55m

Fri Feb 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

Sun Mar 1st 2026 Scoot · TR 640 Depart at 7:00am from Singapore (SIN) Fly for 2h 0m Arrive at 8:00am in Ko Samui (USM)
€674

7:14pm - 8:00am
Fri Jan 23rd 2026

48h 46m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Fri Jan 23rd 2026 Hawaiian Airlines · HA 4842 Depart at 7:14pm from Washington, D.C. (BWI) Fly for 6h 0m Arrive at 10:14pm in Seattle (SEA)

Layover in Seattle for 10h 31m

Sat Jan 24th 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

Mon Jan 26th 2026 Scoot · TR 640 Depart at 7:00am from Singapore (SIN) Fly for 2h 0m Arrive at 8:00am in Ko Samui (USM)
€677

7:14pm - 5:10pm
Wed Jan 28th 2026

57h 56m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Wed Jan 28th 2026 Hawaiian Airlines · HA 4842 Depart at 7:14pm from Washington, D.C. (BWI) Fly for 6h 0m Arrive at 10:14pm in Seattle (SEA)

Layover in Seattle for 10h 31m

Thu Jan 29th 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 22h 25m

Sat Jan 31st 2026 Scoot · TR 694 Depart at 4:10pm from Singapore (SIN) Fly for 2h 0m Arrive at 5:10pm in Ko Samui (USM)
€679

7:14pm - 5:10pm
Wed Jan 14th 2026

57h 56m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Wed Jan 14th 2026 Hawaiian Airlines · HA 4842 Depart at 7:14pm from Washington, D.C. (BWI) Fly for 6h 0m Arrive at 10:14pm in Seattle (SEA)

Layover in Seattle for 10h 31m

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 22h 25m

Sat Jan 17th 2026 Scoot · TR 694 Depart at 4:10pm from Singapore (SIN) Fly for 2h 0m Arrive at 5:10pm in Ko Samui (USM)
€681

7:14pm - 8:00am
Wed Feb 4th 2026

48h 46m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Wed Feb 4th 2026 Hawaiian Airlines · HA 4842 Depart at 7:14pm from Washington, D.C. (BWI) Fly for 6h 0m Arrive at 10:14pm in Seattle (SEA)

Layover in Seattle for 10h 31m

Thu Feb 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 13h 15m

Sat Feb 7th 2026 Scoot · TR 640 Depart at 7:00am from Singapore (SIN) Fly for 2h 0m Arrive at 8:00am in Ko Samui (USM)
€681

6:46pm - 8:00am
Wed Mar 4th 2026

49h 14m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Wed Mar 4th 2026 Hawaiian Airlines · HA 4842 Depart at 6:46pm from Washington, D.C. (BWI) Fly for 6h 4m Arrive at 9:50pm in Seattle (SEA)

Layover in Seattle for 10h 55m

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 13h 15m

Sat Mar 7th 2026 Scoot · TR 640 Depart at 7:00am from Singapore (SIN) Fly for 2h 0m Arrive at 8:00am in Ko Samui (USM)
€682

6:46pm - 9:05pm
Wed Mar 4th 2026

38h 19m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Wed Mar 4th 2026 Hawaiian Airlines · HA 4842 Depart at 6:46pm from Washington, D.C. (BWI) Fly for 6h 4m Arrive at 9:50pm in Seattle (SEA)

Layover in Seattle for 10h 55m

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)
€682

6:46pm - 9:05pm
Sat Mar 7th 2026

38h 19m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Sat Mar 7th 2026 Hawaiian Airlines · HA 4842 Depart at 6:46pm from Washington, D.C. (BWI) Fly for 6h 4m Arrive at 9:50pm in Seattle (SEA)

Layover in Seattle for 10h 55m

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)
€682

6:46pm - 9:05pm
Wed Mar 11th 2026

39h 19m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Wed Mar 11th 2026 Hawaiian Airlines · HA 4842 Depart at 6:46pm from Washington, D.C. (BWI) Fly for 6h 4m Arrive at 9:50pm in Seattle (SEA)

Layover in Seattle for 11h 55m

Thu Mar 12th 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

Fri Mar 13th 2026 Bangkok Airways · PG 962 Depart at 8:10pm from Singapore (SIN) Fly for 1h 55m Arrive at 9:05pm in Ko Samui (USM)
€682

6:46pm - 9:05pm
Sat Mar 14th 2026

39h 19m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Sat Mar 14th 2026 Hawaiian Airlines · HA 4842 Depart at 6:46pm from Washington, D.C. (BWI) Fly for 6h 4m Arrive at 9:50pm in Seattle (SEA)

Layover in Seattle for 11h 55m

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)
€685

6:46pm - 8:00am
Mon Mar 2nd 2026

49h 14m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Mon Mar 2nd 2026 Hawaiian Airlines · HA 4842 Depart at 6:46pm from Washington, D.C. (BWI) Fly for 6h 4m Arrive at 9:50pm in Seattle (SEA)

Layover in Seattle for 10h 55m

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 13h 15m

Thu Mar 5th 2026 Scoot · TR 640 Depart at 7:00am from Singapore (SIN) Fly for 2h 0m Arrive at 8:00am in Ko Samui (USM)
€685

6:46pm - 8:00am
Sat Feb 21st 2026

49h 14m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Sat Feb 21st 2026 Hawaiian Airlines · HA 4842 Depart at 6:46pm from Washington, D.C. (BWI) Fly for 6h 4m Arrive at 9:50pm in Seattle (SEA)

Layover in Seattle for 10h 55m

Sun Feb 22nd 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 Feb 24th 2026 Scoot · TR 640 Depart at 7:00am from Singapore (SIN) Fly for 2h 0m Arrive at 8:00am in Ko Samui (USM)
€685

7:14pm - 5:10pm
Thu Jan 15th 2026

57h 56m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Thu Jan 15th 2026 Hawaiian Airlines · HA 4842 Depart at 7:14pm from Washington, D.C. (BWI) Fly for 6h 0m Arrive at 10:14pm in Seattle (SEA)

Layover in Seattle for 10h 31m

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 22h 25m

Sun Jan 18th 2026 Scoot · TR 694 Depart at 4:10pm from Singapore (SIN) Fly for 2h 0m Arrive at 5:10pm in Ko Samui (USM)
€687

6:46pm - 9:05pm
Sat Feb 28th 2026

38h 19m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Sat Feb 28th 2026 Hawaiian Airlines · HA 4842 Depart at 6:46pm from Washington, D.C. (BWI) Fly for 6h 4m Arrive at 9:50pm in Seattle (SEA)

Layover in Seattle for 10h 55m

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 2h 25m

Mon Mar 2nd 2026 Bangkok Airways · PG 962 Depart at 8:10pm from Singapore (SIN) Fly for 1h 55m Arrive at 9:05pm in Ko Samui (USM)
€689

6:55pm - 8:00am
Sat Mar 21st 2026

50h 5m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Sat Mar 21st 2026 Alaska Airlines · AS 379 Depart at 6:55pm from Washington, D.C. (BWI) Fly for 5h 57m Arrive at 9:52pm in Seattle (SEA)

Layover in Seattle for 11h 53m

Sun Mar 22nd 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 13h 15m

Tue Mar 24th 2026 Scoot · TR 640 Depart at 7:00am from Singapore (SIN) Fly for 2h 0m Arrive at 8:00am in Ko Samui (USM)
€696

6:55pm - 8:00am
Thu Mar 19th 2026

50h 5m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Thu Mar 19th 2026 Hawaiian Airlines · HA 4842 Depart at 6:55pm from Washington, D.C. (BWI) Fly for 5h 57m Arrive at 9:52pm in Seattle (SEA)

Layover in Seattle for 11h 53m

Fri Mar 20th 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 13h 15m

Sun Mar 22nd 2026 Scoot · TR 640 Depart at 7:00am from Singapore (SIN) Fly for 2h 0m Arrive at 8:00am in Ko Samui (USM)
€698

7:14pm - 8:00am
Mon Feb 9th 2026

48h 46m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Mon Feb 9th 2026 Hawaiian Airlines · HA 4842 Depart at 7:14pm from Washington, D.C. (BWI) Fly for 6h 0m Arrive at 10:14pm in Seattle (SEA)

Layover in Seattle for 10h 31m

Tue Feb 10th 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 12th 2026 Scoot · TR 640 Depart at 7:00am from Singapore (SIN) Fly for 2h 0m Arrive at 8:00am in Ko Samui (USM)
€698

7:14pm - 8:00am
Thu Jan 29th 2026

48h 46m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Thu Jan 29th 2026 Hawaiian Airlines · HA 4842 Depart at 7:14pm from Washington, D.C. (BWI) Fly for 6h 0m Arrive at 10:14pm in Seattle (SEA)

Layover in Seattle for 10h 31m

Fri Jan 30th 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 1st 2026 Scoot · TR 640 Depart at 7:00am from Singapore (SIN) Fly for 2h 0m Arrive at 8:00am in Ko Samui (USM)
€698

6:46pm - 8:00am
Sat Feb 14th 2026

49h 14m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Sat Feb 14th 2026 Hawaiian Airlines · HA 4842 Depart at 6:46pm from Washington, D.C. (BWI) Fly for 6h 4m Arrive at 9:50pm in Seattle (SEA)

Layover in Seattle for 10h 55m

Sun Feb 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

Tue Feb 17th 2026 Scoot · TR 640 Depart at 7:00am from Singapore (SIN) Fly for 2h 0m Arrive at 8:00am in Ko Samui (USM)
€700

7:14pm - 8:00am
Thu Jan 15th 2026

48h 46m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Thu Jan 15th 2026 Hawaiian Airlines · HA 4842 Depart at 7:14pm from Washington, D.C. (BWI) Fly for 6h 0m Arrive at 10:14pm in Seattle (SEA)

Layover in Seattle for 10h 31m

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)
€701

6:46pm - 9:05pm
Mon Mar 2nd 2026

38h 19m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Mon Mar 2nd 2026 Hawaiian Airlines · HA 4842 Depart at 6:46pm from Washington, D.C. (BWI) Fly for 6h 4m Arrive at 9:50pm in Seattle (SEA)

Layover in Seattle for 10h 55m

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)
€701

6:46pm - 9:05pm
Mon Feb 23rd 2026

38h 19m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Mon Feb 23rd 2026 Hawaiian Airlines · HA 4842 Depart at 6:46pm from Washington, D.C. (BWI) Fly for 6h 4m Arrive at 9:50pm in Seattle (SEA)

Layover in Seattle for 10h 55m

Tue Feb 24th 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 Feb 25th 2026 Bangkok Airways · PG 962 Depart at 8:10pm from Singapore (SIN) Fly for 1h 55m Arrive at 9:05pm in Ko Samui (USM)
€701

6:46pm - 9:05pm
Mon Mar 16th 2026

39h 19m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Mon Mar 16th 2026 Hawaiian Airlines · HA 4842 Depart at 6:46pm from Washington, D.C. (BWI) Fly for 6h 4m Arrive at 9:50pm in Seattle (SEA)

Layover in Seattle for 11h 55m

Tue Mar 17th 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 18th 2026 Bangkok Airways · PG 962 Depart at 8:10pm from Singapore (SIN) Fly for 1h 55m Arrive at 9:05pm in Ko Samui (USM)
€701

6:46pm - 9:05pm
Thu Mar 12th 2026

39h 19m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Thu Mar 12th 2026 Hawaiian Airlines · HA 4842 Depart at 6:46pm from Washington, D.C. (BWI) Fly for 6h 4m Arrive at 9:50pm in Seattle (SEA)

Layover in Seattle for 11h 55m

Fri Mar 13th 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

Sat Mar 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)
€701

6:46pm - 9:05pm
Mon Mar 9th 2026

39h 19m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Mon Mar 9th 2026 Hawaiian Airlines · HA 4842 Depart at 6:46pm from Washington, D.C. (BWI) Fly for 6h 4m Arrive at 9:50pm in Seattle (SEA)

Layover in Seattle for 11h 55m

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)
€701

7:14pm - 8:00am
Wed Jan 28th 2026

48h 46m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Wed Jan 28th 2026 Hawaiian Airlines · HA 4842 Depart at 7:14pm from Washington, D.C. (BWI) Fly for 6h 0m Arrive at 10:14pm in Seattle (SEA)

Layover in Seattle for 10h 31m

Thu Jan 29th 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 31st 2026 Scoot · TR 640 Depart at 7:00am from Singapore (SIN) Fly for 2h 0m Arrive at 8:00am in Ko Samui (USM)
€702

7:14pm - 8:00am
Wed Jan 14th 2026

48h 46m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Wed Jan 14th 2026 Hawaiian Airlines · HA 4842 Depart at 7:14pm from Washington, D.C. (BWI) Fly for 6h 0m Arrive at 10:14pm in Seattle (SEA)

Layover in Seattle for 10h 31m

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)
€704

6:46pm - 8:00am
Wed Feb 18th 2026

49h 14m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Wed Feb 18th 2026 Hawaiian Airlines · HA 4842 Depart at 6:46pm from Washington, D.C. (BWI) Fly for 6h 4m Arrive at 9:50pm in Seattle (SEA)

Layover in Seattle for 10h 55m

Thu Feb 19th 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 Feb 21st 2026 Scoot · TR 640 Depart at 7:00am from Singapore (SIN) Fly for 2h 0m Arrive at 8:00am in Ko Samui (USM)
€721

7:14pm - 8:00am
Mon Jan 12th 2026

48h 46m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Mon Jan 12th 2026 Hawaiian Airlines · HA 4842 Depart at 7:14pm from Washington, D.C. (BWI) Fly for 6h 0m Arrive at 10:14pm in Seattle (SEA)

Layover in Seattle for 10h 31m

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)
€722

6:55pm - 8:00am
Wed Mar 18th 2026

50h 5m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Wed Mar 18th 2026 Hawaiian Airlines · HA 4842 Depart at 6:55pm from Washington, D.C. (BWI) Fly for 5h 58m Arrive at 9:53pm in Seattle (SEA)

Layover in Seattle for 11h 52m

Thu Mar 19th 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 13h 15m

Sat Mar 21st 2026 Scoot · TR 640 Depart at 7:00am from Singapore (SIN) Fly for 2h 0m Arrive at 8:00am in Ko Samui (USM)
€723

6:46pm - 8:00am
Mon Feb 16th 2026

49h 14m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Mon Feb 16th 2026 Hawaiian Airlines · HA 4842 Depart at 6:46pm from Washington, D.C. (BWI) Fly for 6h 4m Arrive at 9:50pm in Seattle (SEA)

Layover in Seattle for 10h 55m

Tue Feb 17th 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 19th 2026 Scoot · TR 640 Depart at 7:00am from Singapore (SIN) Fly for 2h 0m Arrive at 8:00am in Ko Samui (USM)
€725

6:55pm - 9:05pm
Sat Mar 21st 2026

39h 10m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Sat Mar 21st 2026 Alaska Airlines · AS 379 Depart at 6:55pm from Washington, D.C. (BWI) Fly for 5h 57m Arrive at 9:52pm in Seattle (SEA)

Layover in Seattle for 11h 53m

Sun Mar 22nd 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 23rd 2026 Bangkok Airways · PG 962 Depart at 8:10pm from Singapore (SIN) Fly for 1h 55m Arrive at 9:05pm in Ko Samui (USM)
€725

6:55pm - 8:00am
Fri Mar 20th 2026

50h 5m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Fri Mar 20th 2026 Alaska Airlines · AS 379 Depart at 6:55pm from Washington, D.C. (BWI) Fly for 5h 57m Arrive at 9:52pm in Seattle (SEA)

Layover in Seattle for 11h 53m

Sat Mar 21st 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 13h 15m

Mon Mar 23rd 2026 Scoot · TR 640 Depart at 7:00am from Singapore (SIN) Fly for 2h 0m Arrive at 8:00am in Ko Samui (USM)
€741

12:34pm - 7:35pm
Mon Jan 19th 2026

43h 1m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Mon Jan 19th 2026 Frontier Airlines · F9 3787 Depart at 12:34pm from Washington, D.C. (BWI) Fly for 3h 44m Arrive at 3:18pm in Dallas (DFW)

Layover in Dallas for 7h 37m

Mon Jan 19th 2026 Cathay Pacific · CX 875 Depart at 10:55pm from Dallas (DFW) Fly for 16h 40m Arrive at 5:35am in Hong Kong (HKG)

Layover in Hong Kong for 11h 30m

Wed Jan 21st 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)
€741

11:38am - 7:35pm
Mon Feb 2nd 2026

43h 57m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Mon Feb 2nd 2026 Frontier Airlines · F9 3787 Depart at 11:38am from Washington, D.C. (BWI) Fly for 3h 44m Arrive at 2:22pm in Dallas (DFW)

Layover in Dallas for 8h 33m

Mon Feb 2nd 2026 Cathay Pacific · CX 875 Depart at 10:55pm from Dallas (DFW) Fly for 16h 40m Arrive at 5:35am in Hong Kong (HKG)

Layover in Hong Kong for 11h 30m

Wed Feb 4th 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)
€742

7:14pm - 9:05pm
Sat Jan 10th 2026

37h 51m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Sat Jan 10th 2026 Hawaiian Airlines · HA 4842 Depart at 7:14pm from Washington, D.C. (BWI) Fly for 6h 0m Arrive at 10:14pm in Seattle (SEA)

Layover in Seattle for 10h 31m

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)
€743

7:14pm - 9:05pm
Mon Jan 26th 2026

37h 51m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Mon Jan 26th 2026 Hawaiian Airlines · HA 4842 Depart at 7:14pm from Washington, D.C. (BWI) Fly for 6h 0m Arrive at 10:14pm in Seattle (SEA)

Layover in Seattle for 10h 31m

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)
€753

6:55pm - 9:05pm
Fri Mar 20th 2026

39h 10m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Fri Mar 20th 2026 Alaska Airlines · AS 379 Depart at 6:55pm from Washington, D.C. (BWI) Fly for 5h 57m Arrive at 9:52pm in Seattle (SEA)

Layover in Seattle for 11h 53m

Sat Mar 21st 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

Sun Mar 22nd 2026 Bangkok Airways · PG 962 Depart at 8:10pm from Singapore (SIN) Fly for 1h 55m Arrive at 9:05pm in Ko Samui (USM)
€759

7:14pm - 9:05pm
Sat Feb 7th 2026

37h 51m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Sat Feb 7th 2026 Hawaiian Airlines · HA 4842 Depart at 7:14pm from Washington, D.C. (BWI) Fly for 6h 0m Arrive at 10:14pm in Seattle (SEA)

Layover in Seattle for 10h 31m

Sun Feb 8th 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 Feb 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)
€761

6:46pm - 9:05pm
Thu Mar 5th 2026

38h 19m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Thu Mar 5th 2026 Hawaiian Airlines · HA 4842 Depart at 6:46pm from Washington, D.C. (BWI) Fly for 6h 4m Arrive at 9:50pm in Seattle (SEA)

Layover in Seattle for 10h 55m

Fri Mar 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 2h 25m

Sat Mar 7th 2026 Bangkok Airways · PG 962 Depart at 8:10pm from Singapore (SIN) Fly for 1h 55m Arrive at 9:05pm in Ko Samui (USM)
€764

6:46pm - 9:05pm
Fri Feb 20th 2026

38h 19m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Fri Feb 20th 2026 Hawaiian Airlines · HA 4842 Depart at 6:46pm from Washington, D.C. (BWI) Fly for 6h 4m Arrive at 9:50pm in Seattle (SEA)

Layover in Seattle for 10h 55m

Sat Feb 21st 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

Sun Feb 22nd 2026 Bangkok Airways · PG 962 Depart at 8:10pm from Singapore (SIN) Fly for 1h 55m Arrive at 9:05pm in Ko Samui (USM)
€764

6:46pm - 9:05pm
Sat Feb 21st 2026

38h 19m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Sat Feb 21st 2026 Hawaiian Airlines · HA 4842 Depart at 6:46pm from Washington, D.C. (BWI) Fly for 6h 4m Arrive at 9:50pm in Seattle (SEA)

Layover in Seattle for 10h 55m

Sun Feb 22nd 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 Feb 23rd 2026 Bangkok Airways · PG 962 Depart at 8:10pm from Singapore (SIN) Fly for 1h 55m Arrive at 9:05pm in Ko Samui (USM)
€775

6:55pm - 9:05pm
Wed Mar 18th 2026

39h 10m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Wed Mar 18th 2026 Hawaiian Airlines · HA 4842 Depart at 6:55pm from Washington, D.C. (BWI) Fly for 5h 58m Arrive at 9:53pm in Seattle (SEA)

Layover in Seattle for 11h 52m

Thu Mar 19th 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

Fri Mar 20th 2026 Bangkok Airways · PG 962 Depart at 8:10pm from Singapore (SIN) Fly for 1h 55m Arrive at 9:05pm in Ko Samui (USM)
€780

7:14pm - 9:05pm
Sat Jan 24th 2026

37h 51m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Sat Jan 24th 2026 Hawaiian Airlines · HA 4842 Depart at 7:14pm from Washington, D.C. (BWI) Fly for 6h 0m Arrive at 10:14pm in Seattle (SEA)

Layover in Seattle for 10h 31m

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 2h 25m

Mon Jan 26th 2026 Bangkok Airways · PG 962 Depart at 8:10pm from Singapore (SIN) Fly for 1h 55m Arrive at 9:05pm in Ko Samui (USM)
€785

6:46pm - 9:05pm
Wed Feb 25th 2026

38h 19m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Wed Feb 25th 2026 Hawaiian Airlines · HA 4842 Depart at 6:46pm from Washington, D.C. (BWI) Fly for 6h 4m Arrive at 9:50pm in Seattle (SEA)

Layover in Seattle for 10h 55m

Thu Feb 26th 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 Feb 27th 2026 Bangkok Airways · PG 962 Depart at 8:10pm from Singapore (SIN) Fly for 1h 55m Arrive at 9:05pm in Ko Samui (USM)
€793

7:14pm - 9:05pm
Mon Feb 2nd 2026

37h 51m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Mon Feb 2nd 2026 Hawaiian Airlines · HA 4842 Depart at 7:14pm from Washington, D.C. (BWI) Fly for 6h 0m Arrive at 10:14pm in Seattle (SEA)

Layover in Seattle for 10h 31m

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 2h 25m

Wed Feb 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)
€793

6:46pm - 9:05pm
Sat Feb 14th 2026

38h 19m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Sat Feb 14th 2026 Hawaiian Airlines · HA 4842 Depart at 6:46pm from Washington, D.C. (BWI) Fly for 6h 4m Arrive at 9:50pm in Seattle (SEA)

Layover in Seattle for 10h 55m

Sun Feb 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

Mon Feb 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)
€813

7:14pm - 9:05pm
Thu Feb 5th 2026

37h 51m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Thu Feb 5th 2026 Hawaiian Airlines · HA 4842 Depart at 7:14pm from Washington, D.C. (BWI) Fly for 6h 0m Arrive at 10:14pm in Seattle (SEA)

Layover in Seattle for 10h 31m

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 2h 25m

Sat Feb 7th 2026 Bangkok Airways · PG 962 Depart at 8:10pm from Singapore (SIN) Fly for 1h 55m Arrive at 9:05pm in Ko Samui (USM)
€813

6:46pm - 9:05pm
Thu Feb 19th 2026

38h 19m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Thu Feb 19th 2026 Hawaiian Airlines · HA 4842 Depart at 6:46pm from Washington, D.C. (BWI) Fly for 6h 4m Arrive at 9:50pm in Seattle (SEA)

Layover in Seattle for 10h 55m

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 2h 25m

Sat Feb 21st 2026 Bangkok Airways · PG 962 Depart at 8:10pm from Singapore (SIN) Fly for 1h 55m Arrive at 9:05pm in Ko Samui (USM)
€815

7:14pm - 9:05pm
Wed Feb 4th 2026

37h 51m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Wed Feb 4th 2026 Hawaiian Airlines · HA 4842 Depart at 7:14pm from Washington, D.C. (BWI) Fly for 6h 0m Arrive at 10:14pm in Seattle (SEA)

Layover in Seattle for 10h 31m

Thu Feb 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 Feb 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)
€815

6:55pm - 9:05pm
Thu Mar 19th 2026

39h 10m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Thu Mar 19th 2026 Hawaiian Airlines · HA 4842 Depart at 6:55pm from Washington, D.C. (BWI) Fly for 5h 57m Arrive at 9:52pm in Seattle (SEA)

Layover in Seattle for 11h 53m

Fri Mar 20th 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

Sat Mar 21st 2026 Bangkok Airways · PG 962 Depart at 8:10pm from Singapore (SIN) Fly for 1h 55m Arrive at 9:05pm in Ko Samui (USM)
€837

7:14pm - 9:05pm
Mon Feb 9th 2026

37h 51m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Mon Feb 9th 2026 Hawaiian Airlines · HA 4842 Depart at 7:14pm from Washington, D.C. (BWI) Fly for 6h 0m Arrive at 10:14pm in Seattle (SEA)

Layover in Seattle for 10h 31m

Tue Feb 10th 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 Feb 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)
€837

7:14pm - 9:05pm
Fri Jan 16th 2026

37h 51m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Fri Jan 16th 2026 Hawaiian Airlines · HA 4842 Depart at 7:14pm from Washington, D.C. (BWI) Fly for 6h 0m Arrive at 10:14pm in Seattle (SEA)

Layover in Seattle for 10h 31m

Sat Jan 17th 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

Sun Jan 18th 2026 Bangkok Airways · PG 962 Depart at 8:10pm from Singapore (SIN) Fly for 1h 55m Arrive at 9:05pm in Ko Samui (USM)
€837

6:46pm - 9:05pm
Thu Feb 26th 2026

38h 19m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Thu Feb 26th 2026 Hawaiian Airlines · HA 4842 Depart at 6:46pm from Washington, D.C. (BWI) Fly for 6h 4m Arrive at 9:50pm in Seattle (SEA)

Layover in Seattle for 10h 55m

Fri Feb 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

Sat Feb 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)
€848

7:14pm - 9:05pm
Fri Jan 23rd 2026

37h 51m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Fri Jan 23rd 2026 Hawaiian Airlines · HA 4842 Depart at 7:14pm from Washington, D.C. (BWI) Fly for 6h 0m Arrive at 10:14pm in Seattle (SEA)

Layover in Seattle for 10h 31m

Sat Jan 24th 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

Sun Jan 25th 2026 Bangkok Airways · PG 962 Depart at 8:10pm from Singapore (SIN) Fly for 1h 55m Arrive at 9:05pm in Ko Samui (USM)
€851

7:14pm - 9:05pm
Wed Jan 14th 2026

37h 51m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Wed Jan 14th 2026 Hawaiian Airlines · HA 4842 Depart at 7:14pm from Washington, D.C. (BWI) Fly for 6h 0m Arrive at 10:14pm in Seattle (SEA)

Layover in Seattle for 10h 31m

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)
€851

7:14pm - 9:05pm
Wed Jan 28th 2026

37h 51m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Wed Jan 28th 2026 Hawaiian Airlines · HA 4842 Depart at 7:14pm from Washington, D.C. (BWI) Fly for 6h 0m Arrive at 10:14pm in Seattle (SEA)

Layover in Seattle for 10h 31m

Thu Jan 29th 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 30th 2026 Bangkok Airways · PG 962 Depart at 8:10pm from Singapore (SIN) Fly for 1h 55m Arrive at 9:05pm in Ko Samui (USM)
€897

10:25am - 7:35pm
Sun Nov 16th 2025

45h 10m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Sun Nov 16th 2025 Spirit Airlines · NK 1000 Depart at 10:25am from Washington, D.C. (BWI) Fly for 3h 35m Arrive at 1:00pm in Dallas (DFW)

Layover in Dallas for 9h 55m

Sun Nov 16th 2025 Cathay Pacific · CX 875 Depart at 10:55pm from Dallas (DFW) Fly for 16h 40m Arrive at 5:35am in Hong Kong (HKG)

Layover in Hong Kong for 11h 30m

Tue Nov 18th 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)
€959

6:04pm - 7:35pm
Mon Nov 17th 2025

37h 31m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Mon Nov 17th 2025 Frontier Airlines · F9 3787 Depart at 6:04pm from Washington, D.C. (BWI) Fly for 3h 38m Arrive at 8:42pm in Dallas (DFW)

Layover in Dallas for 2h 13m

Mon Nov 17th 2025 Cathay Pacific · CX 875 Depart at 10:55pm from Dallas (DFW) Fly for 16h 40m Arrive at 5:35am in Hong Kong (HKG)

Layover in Hong Kong for 11h 30m

Wed Nov 19th 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)
€1425

7:38am - 9:05pm
Wed Nov 19th 2025

49h 27m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Wed Nov 19th 2025 Alaska Airlines · AS 349 Depart at 7:38am from Washington, D.C. (BWI) Fly for 5h 52m Arrive at 10:30am in Seattle (SEA)

Layover in Seattle for 22h 15m

Thu Nov 20th 2025 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 Nov 21st 2025 Singapore Airlines · SQ 5462 Depart at 8:10pm from Singapore (SIN) Fly for 1h 55m Arrive at 9:05pm in Ko Samui (USM)
€2289

7:07am - 6:15pm
Wed Nov 19th 2025

47h 8m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Wed Nov 19th 2025 Singapore Airlines · SQ 1635 Depart at 7:07am from Washington, D.C. (BWI) Fly for 5h 53m Arrive at 10:00am in Los Angeles (LAX)

Layover in Los Angeles for 9h 50m

Wed Nov 19th 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 11h 50m

Fri Nov 21st 2025 Singapore Airlines · SQ 5498 Depart at 5:20pm from Singapore (SIN) Fly for 1h 55m Arrive at 6:15pm in Ko Samui (USM)
€2331

7:07am - 6:15pm
Wed Nov 19th 2025

47h 8m
Washington, D.C. (BWI) → Ko Samui (USM)

2 Stops

Wed Nov 19th 2025 Singapore Airlines · SQ 1635 Depart at 7:07am from Washington, D.C. (BWI) Fly for 5h 53m Arrive at 10:00am in Los Angeles (LAX)

Layover in Los Angeles for 12h 5m

Wed Nov 19th 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 9h 25m

Fri Nov 21st 2025 Singapore Airlines · SQ 5498 Depart at 5:20pm from Singapore (SIN) Fly for 1h 55m Arrive at 6:15pm 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 Baltimore to Ko Samui (BWI to USM)

Sarah Belizaire

John Ford

Roaming Sonaa

Andy Travels

Travel With Bender

Wesley Mergard

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