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Flights from Washington to St. Louis (IAD to STL)

Discover alternate routes & cheap one way flights from Washington to St. Louis (IAD to STL) within a departure date range.

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  • USD 122
    Southern Airways ExpressAllegiant Air
    9:56am - 6:30pm
    Fri Jan 6th
    9h 34m
    Washington, D.C. (IAD) → St. Louis (STL)
    2 Stops

    Fri Jan 6th 2023 Allegiant Air · G4 3415 Depart at 9:56 am from Washington, D.C. (IAD) Fly for 2h 0m Arrive at 10:56 am in Nashville (BNA)

    Layover in Nashville for 3h 4m

    Fri Jan 6th 2023 Southern Airways Express · 9X 459 Depart at 2:00 pm from Nashville (BNA) Fly for 1h 40m Arrive at 3:40 pm in Jonesboro (JBR)

    Layover in Jonesboro for 1h 20m

    Fri Jan 6th 2023 Southern Airways Express · 9X 454 Depart at 5:00 pm from Jonesboro (JBR) Fly for 1h 30m Arrive at 6:30 pm in St. Louis (STL)

  • USD 176
    United Airlines
    12:55pm - 2:25pm
    Tue Jan 10th
    2h 30m
    Washington, D.C. (IAD) → St. Louis (STL)
    Direct

    Tue Jan 10th 2023 United Airlines · UA 4262 Depart at 12:55 pm from Washington, D.C. (IAD) Fly for 2h 30m Arrive at 2:25 pm in St. Louis (STL)

  • USD 176
    United Airlines
    6:00pm - 7:32pm
    Tue Jan 10th
    2h 32m
    Washington, D.C. (IAD) → St. Louis (STL)
    Direct

    Tue Jan 10th 2023 United Airlines · UA 4527 Depart at 6:00 pm from Washington, D.C. (IAD) Fly for 2h 32m Arrive at 7:32 pm in St. Louis (STL)

  • USD 182
    United AirlinesAllegiant Air
    11:56am - 7:17pm
    Mon Jan 9th
    8h 21m
    Washington, D.C. (IAD) → St. Louis (STL)
    2 Stops

    Mon Jan 9th 2023 Allegiant Air · G4 3415 Depart at 11:56 am from Washington, D.C. (IAD) Fly for 2h 0m Arrive at 12:56 pm in Nashville (BNA)

    Layover in Nashville for 2h 4m

    Mon Jan 9th 2023 United Airlines · UA 4185 Depart at 3:00 pm from Nashville (BNA) Fly for 1h 43m Arrive at 4:43 pm in Chicago (ORD)

    Layover in Chicago for 1h 7m

    Mon Jan 9th 2023 United Airlines · UA 4480 Depart at 5:50 pm from Chicago (ORD) Fly for 1h 27m Arrive at 7:17 pm in St. Louis (STL)

  • USD 187
    Delta Air Lines
    12:42pm - 4:20pm
    Tue Jan 10th
    4h 38m
    Washington, D.C. (IAD) → St. Louis (STL)
    1 Stop

    Tue Jan 10th 2023 Delta Air Lines · DL 2820 Depart at 12:42 pm from Washington, D.C. (IAD) Fly for 1h 59m Arrive at 2:41 pm in Atlanta (ATL)

    Layover in Atlanta for 0h 55m

    Tue Jan 10th 2023 Delta Air Lines · DL 2729 Depart at 3:36 pm from Atlanta (ATL) Fly for 1h 44m Arrive at 4:20 pm in St. Louis (STL)

  • USD 187
    United Airlines
    6:30am - 10:36am
    Tue Jan 10th
    5h 6m
    Washington, D.C. (IAD) → St. Louis (STL)
    1 Stop

    Tue Jan 10th 2023 United Airlines · UA 418 Depart at 6:30 am from Washington, D.C. (IAD) Fly for 2h 9m Arrive at 7:39 am in Chicago (ORD)

    Layover in Chicago for 1h 31m

    Tue Jan 10th 2023 United Airlines · UA 4397 Depart at 9:10 am from Chicago (ORD) Fly for 1h 26m Arrive at 10:36 am in St. Louis (STL)

  • USD 187
    Delta Air Lines
    5:26pm - 9:32pm
    Tue Jan 10th
    5h 6m
    Washington, D.C. (IAD) → St. Louis (STL)
    1 Stop

    Tue Jan 10th 2023 Delta Air Lines · DL 3512 Depart at 5:26 pm from Washington, D.C. (IAD) Fly for 1h 45m Arrive at 7:11 pm in Detroit (DTW)

    Layover in Detroit for 1h 29m

    Tue Jan 10th 2023 Delta Air Lines · DL 2785 Depart at 8:40 pm from Detroit (DTW) Fly for 1h 52m Arrive at 9:32 pm in St. Louis (STL)

  • USD 187
    United Airlines
    5:17pm - 9:27pm
    Tue Jan 10th
    5h 10m
    Washington, D.C. (IAD) → St. Louis (STL)
    1 Stop

    Tue Jan 10th 2023 United Airlines · UA 2608 Depart at 5:17 pm from Washington, D.C. (IAD) Fly for 2h 16m Arrive at 6:33 pm in Chicago (ORD)

    Layover in Chicago for 1h 25m

    Tue Jan 10th 2023 United Airlines · UA 2431 Depart at 7:58 pm from Chicago (ORD) Fly for 1h 29m Arrive at 9:27 pm in St. Louis (STL)

  • USD 187
    United Airlines
    5:23pm - 9:57pm
    Mon Jan 9th
    5h 34m
    Washington, D.C. (IAD) → St. Louis (STL)
    1 Stop

    Mon Jan 9th 2023 United Airlines · UA 775 Depart at 5:23 pm from Washington, D.C. (IAD) Fly for 1h 27m Arrive at 6:50 pm in New York (EWR)

    Layover in New York for 1h 9m

    Mon Jan 9th 2023 United Airlines · UA 4593 Depart at 7:59 pm from New York (EWR) Fly for 2h 58m Arrive at 9:57 pm in St. Louis (STL)

  • USD 187
    United Airlines
    5:23pm - 9:57pm
    Tue Jan 10th
    5h 34m
    Washington, D.C. (IAD) → St. Louis (STL)
    1 Stop

    Tue Jan 10th 2023 United Airlines · UA 775 Depart at 5:23 pm from Washington, D.C. (IAD) Fly for 1h 27m Arrive at 6:50 pm in New York (EWR)

    Layover in New York for 1h 9m

    Tue Jan 10th 2023 United Airlines · UA 4593 Depart at 7:59 pm from New York (EWR) Fly for 2h 58m Arrive at 9:57 pm in St. Louis (STL)

  • USD 187
    United Airlines
    1:05pm - 5:58pm
    Tue Jan 10th
    5h 53m
    Washington, D.C. (IAD) → St. Louis (STL)
    1 Stop

    Tue Jan 10th 2023 United Airlines · UA 1361 Depart at 1:05 pm from Washington, D.C. (IAD) Fly for 2h 8m Arrive at 2:13 pm in Chicago (ORD)

    Layover in Chicago for 2h 22m

    Tue Jan 10th 2023 United Airlines · UA 4457 Depart at 4:35 pm from Chicago (ORD) Fly for 1h 23m Arrive at 5:58 pm in St. Louis (STL)

  • USD 187
    Delta Air Lines
    6:00am - 10:58am
    Tue Jan 10th
    5h 58m
    Washington, D.C. (IAD) → St. Louis (STL)
    1 Stop

    Tue Jan 10th 2023 Delta Air Lines · DL 2550 Depart at 6:00 am from Washington, D.C. (IAD) Fly for 1h 58m Arrive at 7:58 am in Atlanta (ATL)

    Layover in Atlanta for 2h 12m

    Tue Jan 10th 2023 Delta Air Lines · DL 2934 Depart at 10:10 am from Atlanta (ATL) Fly for 1h 48m Arrive at 10:58 am in St. Louis (STL)

  • USD 187
    Delta Air Lines
    3:59pm - 9:04pm
    Tue Jan 10th
    6h 5m
    Washington, D.C. (IAD) → St. Louis (STL)
    1 Stop

    Tue Jan 10th 2023 Delta Air Lines · DL 5777 Depart at 3:59 pm from Washington, D.C. (IAD) Fly for 1h 30m Arrive at 5:29 pm in New York (LGA)

    Layover in New York for 1h 21m

    Tue Jan 10th 2023 Delta Air Lines · DL 5668 Depart at 6:50 pm from New York (LGA) Fly for 3h 14m Arrive at 9:04 pm in St. Louis (STL)

  • USD 187
    Delta Air Lines
    11:41am - 5:27pm
    Tue Jan 10th
    6h 46m
    Washington, D.C. (IAD) → St. Louis (STL)
    1 Stop

    Tue Jan 10th 2023 Delta Air Lines · DL 5750 Depart at 11:41 am from Washington, D.C. (IAD) Fly for 1h 18m Arrive at 12:59 pm in New York (LGA)

    Layover in New York for 2h 16m

    Tue Jan 10th 2023 Delta Air Lines · DL 5688 Depart at 3:15 pm from New York (LGA) Fly for 3h 12m Arrive at 5:27 pm in St. Louis (STL)

  • USD 187
    United Airlines
    1:05pm - 7:17pm
    Tue Jan 10th
    7h 12m
    Washington, D.C. (IAD) → St. Louis (STL)
    1 Stop

    Tue Jan 10th 2023 United Airlines · UA 1361 Depart at 1:05 pm from Washington, D.C. (IAD) Fly for 2h 8m Arrive at 2:13 pm in Chicago (ORD)

    Layover in Chicago for 3h 37m

    Tue Jan 10th 2023 United Airlines · UA 4480 Depart at 5:50 pm from Chicago (ORD) Fly for 1h 27m Arrive at 7:17 pm in St. Louis (STL)

  • USD 187
    United Airlines
    8:15am - 2:32pm
    Tue Jan 10th
    7h 17m
    Washington, D.C. (IAD) → St. Louis (STL)
    1 Stop

    Tue Jan 10th 2023 United Airlines · UA 1744 Depart at 8:15 am from Washington, D.C. (IAD) Fly for 2h 10m Arrive at 9:25 am in Chicago (ORD)

    Layover in Chicago for 3h 40m

    Tue Jan 10th 2023 United Airlines · UA 4449 Depart at 1:05 pm from Chicago (ORD) Fly for 1h 27m Arrive at 2:32 pm in St. Louis (STL)

  • USD 187
    Delta Air Lines
    9:55am - 4:20pm
    Tue Jan 10th
    7h 25m
    Washington, D.C. (IAD) → St. Louis (STL)
    1 Stop

    Tue Jan 10th 2023 Delta Air Lines · DL 2332 Depart at 9:55 am from Washington, D.C. (IAD) Fly for 1h 45m Arrive at 11:40 am in Atlanta (ATL)

    Layover in Atlanta for 3h 56m

    Tue Jan 10th 2023 Delta Air Lines · DL 2729 Depart at 3:36 pm from Atlanta (ATL) Fly for 1h 44m Arrive at 4:20 pm in St. Louis (STL)

  • USD 187
    Delta Air Lines
    12:42pm - 7:12pm
    Tue Jan 10th
    7h 30m
    Washington, D.C. (IAD) → St. Louis (STL)
    1 Stop

    Tue Jan 10th 2023 Delta Air Lines · DL 2820 Depart at 12:42 pm from Washington, D.C. (IAD) Fly for 1h 59m Arrive at 2:41 pm in Atlanta (ATL)

    Layover in Atlanta for 3h 44m

    Tue Jan 10th 2023 Delta Air Lines · DL 1712 Depart at 6:25 pm from Atlanta (ATL) Fly for 1h 47m Arrive at 7:12 pm in St. Louis (STL)

  • USD 187
    Delta Air Lines
    4:35pm - 11:13pm
    Tue Jan 10th
    7h 38m
    Washington, D.C. (IAD) → St. Louis (STL)
    1 Stop

    Tue Jan 10th 2023 Delta Air Lines · DL 2346 Depart at 4:35 pm from Washington, D.C. (IAD) Fly for 1h 56m Arrive at 6:31 pm in Atlanta (ATL)

    Layover in Atlanta for 3h 58m

    Tue Jan 10th 2023 Delta Air Lines · DL 1732 Depart at 10:29 pm from Atlanta (ATL) Fly for 1h 44m Arrive at 11:13 pm in St. Louis (STL)

  • USD 187
    United Airlines
    12:40pm - 7:21pm
    Tue Jan 10th
    7h 41m
    Washington, D.C. (IAD) → St. Louis (STL)
    1 Stop

    Tue Jan 10th 2023 United Airlines · UA 1911 Depart at 12:40 pm from Washington, D.C. (IAD) Fly for 1h 20m Arrive at 2:00 pm in New York (EWR)

    Layover in New York for 3h 29m

    Tue Jan 10th 2023 United Airlines · UA 679 Depart at 5:29 pm from New York (EWR) Fly for 2h 52m Arrive at 7:21 pm in St. Louis (STL)

  • USD 187
    Delta Air Lines
    7:00am - 2:10pm
    Tue Jan 10th
    8h 10m
    Washington, D.C. (IAD) → St. Louis (STL)
    1 Stop

    Tue Jan 10th 2023 Delta Air Lines · DL 5826 Depart at 7:00 am from Washington, D.C. (IAD) Fly for 1h 23m Arrive at 8:23 am in New York (LGA)

    Layover in New York for 3h 36m

    Tue Jan 10th 2023 Delta Air Lines · DL 5849 Depart at 11:59 am from New York (LGA) Fly for 3h 11m Arrive at 2:10 pm in St. Louis (STL)

  • USD 193
    American Airlines
    10:59am - 1:53pm
    Tue Jan 10th
    3h 54m
    Washington, D.C. (IAD) → St. Louis (STL)
    1 Stop

    Tue Jan 10th 2023 American Airlines · AA 2901 Depart at 10:59 am from Washington, D.C. (IAD) Fly for 1h 25m Arrive at 12:24 pm in Charlotte (CLT)

    Layover in Charlotte for 0h 32m

    Tue Jan 10th 2023 American Airlines · AA 2937 Depart at 12:56 pm from Charlotte (CLT) Fly for 1h 57m Arrive at 1:53 pm in St. Louis (STL)

  • USD 193
    American Airlines
    6:40am - 10:17am
    Tue Jan 10th
    4h 37m
    Washington, D.C. (IAD) → St. Louis (STL)
    1 Stop

    Tue Jan 10th 2023 American Airlines · AA 2910 Depart at 6:40 am from Washington, D.C. (IAD) Fly for 1h 34m Arrive at 8:14 am in Charlotte (CLT)

    Layover in Charlotte for 1h 1m

    Tue Jan 10th 2023 American Airlines · AA 801 Depart at 9:15 am from Charlotte (CLT) Fly for 2h 2m Arrive at 10:17 am in St. Louis (STL)

  • USD 193
    American Airlines
    3:33pm - 7:18pm
    Tue Jan 10th
    4h 45m
    Washington, D.C. (IAD) → St. Louis (STL)
    1 Stop

    Tue Jan 10th 2023 American Airlines · AA 5028 Depart at 3:33 pm from Washington, D.C. (IAD) Fly for 1h 40m Arrive at 5:13 pm in Charlotte (CLT)

    Layover in Charlotte for 1h 7m

    Tue Jan 10th 2023 American Airlines · AA 439 Depart at 6:20 pm from Charlotte (CLT) Fly for 1h 58m Arrive at 7:18 pm in St. Louis (STL)

  • USD 193
    American Airlines
    3:33pm - 9:23pm
    Tue Jan 10th
    6h 50m
    Washington, D.C. (IAD) → St. Louis (STL)
    1 Stop

    Tue Jan 10th 2023 American Airlines · AA 5028 Depart at 3:33 pm from Washington, D.C. (IAD) Fly for 1h 40m Arrive at 5:13 pm in Charlotte (CLT)

    Layover in Charlotte for 3h 7m

    Tue Jan 10th 2023 American Airlines · AA 1007 Depart at 8:20 pm from Charlotte (CLT) Fly for 2h 3m Arrive at 9:23 pm in St. Louis (STL)

  • USD 200
    Delta Air Lines
    11:13am - 4:40pm
    Tue Jan 10th
    6h 27m
    Washington, D.C. (IAD) → St. Louis (STL)
    1 Stop

    Tue Jan 10th 2023 Delta Air Lines · DL 3812 Depart at 11:13 am from Washington, D.C. (IAD) Fly for 1h 42m Arrive at 12:55 pm in Detroit (DTW)

    Layover in Detroit for 2h 55m

    Tue Jan 10th 2023 Delta Air Lines · DL 3554 Depart at 3:50 pm from Detroit (DTW) Fly for 1h 50m Arrive at 4:40 pm in St. Louis (STL)

  • USD 242
    Delta Air Lines
    7:52pm - 11:13pm
    Tue Jan 10th
    4h 21m
    Washington, D.C. (IAD) → St. Louis (STL)
    1 Stop

    Tue Jan 10th 2023 Delta Air Lines · DL 2902 Depart at 7:52 pm from Washington, D.C. (IAD) Fly for 1h 56m Arrive at 9:48 pm in Atlanta (ATL)

    Layover in Atlanta for 0h 41m

    Tue Jan 10th 2023 Delta Air Lines · DL 1732 Depart at 10:29 pm from Atlanta (ATL) Fly for 1h 44m Arrive at 11:13 pm in St. Louis (STL)

  • USD 242
    Delta Air Lines
    6:00am - 9:45am
    Tue Jan 10th
    4h 45m
    Washington, D.C. (IAD) → St. Louis (STL)
    1 Stop

    Tue Jan 10th 2023 Delta Air Lines · DL 3965 Depart at 6:00 am from Washington, D.C. (IAD) Fly for 1h 40m Arrive at 7:40 am in Detroit (DTW)

    Layover in Detroit for 1h 10m

    Tue Jan 10th 2023 Delta Air Lines · DL 3549 Depart at 8:50 am from Detroit (DTW) Fly for 1h 55m Arrive at 9:45 am in St. Louis (STL)

  • USD 248
    United Airlines
    12:55pm - 2:25pm
    Sat Jan 7th
    2h 30m
    Washington, D.C. (IAD) → St. Louis (STL)
    Direct

    Sat Jan 7th 2023 United Airlines · UA 4262 Depart at 12:55 pm from Washington, D.C. (IAD) Fly for 2h 30m Arrive at 2:25 pm in St. Louis (STL)

  • USD 248
    United Airlines
    12:55pm - 2:25pm
    Thu Jan 5th
    2h 30m
    Washington, D.C. (IAD) → St. Louis (STL)
    Direct

    Thu Jan 5th 2023 United Airlines · UA 4262 Depart at 12:55 pm from Washington, D.C. (IAD) Fly for 2h 30m Arrive at 2:25 pm in St. Louis (STL)

  • USD 248
    United Airlines
    12:55pm - 2:25pm
    Fri Jan 6th
    2h 30m
    Washington, D.C. (IAD) → St. Louis (STL)
    Direct

    Fri Jan 6th 2023 United Airlines · UA 4262 Depart at 12:55 pm from Washington, D.C. (IAD) Fly for 2h 30m Arrive at 2:25 pm in St. Louis (STL)

  • USD 248
    United Airlines
    6:00pm - 7:32pm
    Sat Jan 7th
    2h 32m
    Washington, D.C. (IAD) → St. Louis (STL)
    Direct

    Sat Jan 7th 2023 United Airlines · UA 4527 Depart at 6:00 pm from Washington, D.C. (IAD) Fly for 2h 32m Arrive at 7:32 pm in St. Louis (STL)

  • USD 248
    United Airlines
    6:00pm - 7:32pm
    Thu Jan 5th
    2h 32m
    Washington, D.C. (IAD) → St. Louis (STL)
    Direct

    Thu Jan 5th 2023 United Airlines · UA 4527 Depart at 6:00 pm from Washington, D.C. (IAD) Fly for 2h 32m Arrive at 7:32 pm in St. Louis (STL)

  • USD 248
    United Airlines
    6:00pm - 7:32pm
    Sun Jan 8th
    2h 32m
    Washington, D.C. (IAD) → St. Louis (STL)
    Direct

    Sun Jan 8th 2023 United Airlines · UA 4527 Depart at 6:00 pm from Washington, D.C. (IAD) Fly for 2h 32m Arrive at 7:32 pm in St. Louis (STL)

  • USD 248
    United Airlines
    6:00pm - 7:32pm
    Fri Jan 6th
    2h 32m
    Washington, D.C. (IAD) → St. Louis (STL)
    Direct

    Fri Jan 6th 2023 United Airlines · UA 4527 Depart at 6:00 pm from Washington, D.C. (IAD) Fly for 2h 32m Arrive at 7:32 pm in St. Louis (STL)

  • USD 258
    Delta Air Lines
    1:40pm - 4:56pm
    Thu Jan 5th
    4h 16m
    Washington, D.C. (IAD) → St. Louis (STL)
    1 Stop

    Thu Jan 5th 2023 Delta Air Lines · DL 3725 Depart at 1:40 pm from Washington, D.C. (IAD) Fly for 1h 35m Arrive at 3:15 pm in Detroit (DTW)

    Layover in Detroit for 0h 57m

    Thu Jan 5th 2023 Delta Air Lines · DL 2456 Depart at 4:12 pm from Detroit (DTW) Fly for 1h 44m Arrive at 4:56 pm in St. Louis (STL)

  • USD 258
    Delta Air Lines
    6:10am - 9:36am
    Sun Jan 8th
    4h 26m
    Washington, D.C. (IAD) → St. Louis (STL)
    1 Stop

    Sun Jan 8th 2023 Delta Air Lines · DL 3867 Depart at 6:10 am from Washington, D.C. (IAD) Fly for 1h 37m Arrive at 7:47 am in Detroit (DTW)

    Layover in Detroit for 1h 3m

    Sun Jan 8th 2023 Delta Air Lines · DL 3513 Depart at 8:50 am from Detroit (DTW) Fly for 1h 46m Arrive at 9:36 am in St. Louis (STL)

  • USD 258
    Delta Air Lines
    6:10am - 9:36am
    Thu Jan 5th
    4h 26m
    Washington, D.C. (IAD) → St. Louis (STL)
    1 Stop

    Thu Jan 5th 2023 Delta Air Lines · DL 3867 Depart at 6:10 am from Washington, D.C. (IAD) Fly for 1h 37m Arrive at 7:47 am in Detroit (DTW)

    Layover in Detroit for 1h 3m

    Thu Jan 5th 2023 Delta Air Lines · DL 3513 Depart at 8:50 am from Detroit (DTW) Fly for 1h 46m Arrive at 9:36 am in St. Louis (STL)

  • USD 258
    Delta Air Lines
    7:55pm - 11:44pm
    Wed Jan 4th
    4h 49m
    Washington, D.C. (IAD) → St. Louis (STL)
    1 Stop

    Wed Jan 4th 2023 Delta Air Lines · DL 1017 Depart at 7:55 pm from Washington, D.C. (IAD) Fly for 1h 55m Arrive at 9:50 pm in Atlanta (ATL)

    Layover in Atlanta for 1h 9m

    Wed Jan 4th 2023 Delta Air Lines · DL 1140 Depart at 10:59 pm from Atlanta (ATL) Fly for 1h 45m Arrive at 11:44 pm in St. Louis (STL)

  • USD 258
    Delta Air Lines
    7:55pm - 11:44pm
    Sun Jan 8th
    4h 49m
    Washington, D.C. (IAD) → St. Louis (STL)
    1 Stop

    Sun Jan 8th 2023 Delta Air Lines · DL 1017 Depart at 7:55 pm from Washington, D.C. (IAD) Fly for 1h 55m Arrive at 9:50 pm in Atlanta (ATL)

    Layover in Atlanta for 1h 9m

    Sun Jan 8th 2023 Delta Air Lines · DL 1140 Depart at 10:59 pm from Atlanta (ATL) Fly for 1h 45m Arrive at 11:44 pm in St. Louis (STL)

  • USD 258
    Delta Air Lines
    7:55pm - 11:44pm
    Thu Jan 5th
    4h 49m
    Washington, D.C. (IAD) → St. Louis (STL)
    1 Stop

    Thu Jan 5th 2023 Delta Air Lines · DL 1017 Depart at 7:55 pm from Washington, D.C. (IAD) Fly for 1h 55m Arrive at 9:50 pm in Atlanta (ATL)

    Layover in Atlanta for 1h 9m

    Thu Jan 5th 2023 Delta Air Lines · DL 1140 Depart at 10:59 pm from Atlanta (ATL) Fly for 1h 45m Arrive at 11:44 pm in St. Louis (STL)

  • USD 258
    United Airlines
    6:30am - 10:36am
    Sun Jan 8th
    5h 6m
    Washington, D.C. (IAD) → St. Louis (STL)
    1 Stop

    Sun Jan 8th 2023 United Airlines · UA 418 Depart at 6:30 am from Washington, D.C. (IAD) Fly for 2h 9m Arrive at 7:39 am in Chicago (ORD)

    Layover in Chicago for 1h 31m

    Sun Jan 8th 2023 United Airlines · UA 4397 Depart at 9:10 am from Chicago (ORD) Fly for 1h 26m Arrive at 10:36 am in St. Louis (STL)

  • USD 258
    Delta Air Lines
    9:25am - 2:20pm
    Sun Jan 8th
    5h 55m
    Washington, D.C. (IAD) → St. Louis (STL)
    1 Stop

    Sun Jan 8th 2023 Delta Air Lines · DL 5734 Depart at 9:25 am from Washington, D.C. (IAD) Fly for 1h 27m Arrive at 10:52 am in New York (LGA)

    Layover in New York for 1h 28m

    Sun Jan 8th 2023 Delta Air Lines · DL 4725 Depart at 12:20 pm from New York (LGA) Fly for 3h 0m Arrive at 2:20 pm in St. Louis (STL)

  • USD 259
    Delta Air Lines
    1:40pm - 4:35pm
    Sat Jan 7th
    3h 55m
    Washington, D.C. (IAD) → St. Louis (STL)
    1 Stop

    Sat Jan 7th 2023 Delta Air Lines · DL 3725 Depart at 1:40 pm from Washington, D.C. (IAD) Fly for 1h 35m Arrive at 3:15 pm in Detroit (DTW)

    Layover in Detroit for 0h 36m

    Sat Jan 7th 2023 Delta Air Lines · DL 2456 Depart at 3:51 pm from Detroit (DTW) Fly for 1h 44m Arrive at 4:35 pm in St. Louis (STL)

  • USD 259
    Delta Air Lines
    6:10am - 9:36am
    Wed Jan 4th
    4h 26m
    Washington, D.C. (IAD) → St. Louis (STL)
    1 Stop

    Wed Jan 4th 2023 Delta Air Lines · DL 3867 Depart at 6:10 am from Washington, D.C. (IAD) Fly for 1h 37m Arrive at 7:47 am in Detroit (DTW)

    Layover in Detroit for 1h 3m

    Wed Jan 4th 2023 Delta Air Lines · DL 3513 Depart at 8:50 am from Detroit (DTW) Fly for 1h 46m Arrive at 9:36 am in St. Louis (STL)

  • USD 259
    Delta Air Lines
    6:10am - 9:36am
    Fri Jan 6th
    4h 26m
    Washington, D.C. (IAD) → St. Louis (STL)
    1 Stop

    Fri Jan 6th 2023 Delta Air Lines · DL 3867 Depart at 6:10 am from Washington, D.C. (IAD) Fly for 1h 37m Arrive at 7:47 am in Detroit (DTW)

    Layover in Detroit for 1h 3m

    Fri Jan 6th 2023 Delta Air Lines · DL 3513 Depart at 8:50 am from Detroit (DTW) Fly for 1h 46m Arrive at 9:36 am in St. Louis (STL)

  • USD 259
    Delta Air Lines
    6:10am - 9:36am
    Sat Jan 7th
    4h 26m
    Washington, D.C. (IAD) → St. Louis (STL)
    1 Stop

    Sat Jan 7th 2023 Delta Air Lines · DL 3867 Depart at 6:10 am from Washington, D.C. (IAD) Fly for 1h 37m Arrive at 7:47 am in Detroit (DTW)

    Layover in Detroit for 1h 3m

    Sat Jan 7th 2023 Delta Air Lines · DL 3513 Depart at 8:50 am from Detroit (DTW) Fly for 1h 46m Arrive at 9:36 am in St. Louis (STL)

  • USD 259
    Delta Air Lines
    7:55pm - 11:44pm
    Fri Jan 6th
    4h 49m
    Washington, D.C. (IAD) → St. Louis (STL)
    1 Stop

    Fri Jan 6th 2023 Delta Air Lines · DL 1017 Depart at 7:55 pm from Washington, D.C. (IAD) Fly for 1h 55m Arrive at 9:50 pm in Atlanta (ATL)

    Layover in Atlanta for 1h 9m

    Fri Jan 6th 2023 Delta Air Lines · DL 1140 Depart at 10:59 pm from Atlanta (ATL) Fly for 1h 45m Arrive at 11:44 pm in St. Louis (STL)

  • USD 259
    United Airlines
    6:30am - 10:36am
    Wed Jan 4th
    5h 6m
    Washington, D.C. (IAD) → St. Louis (STL)
    1 Stop

    Wed Jan 4th 2023 United Airlines · UA 418 Depart at 6:30 am from Washington, D.C. (IAD) Fly for 2h 8m Arrive at 7:38 am in Chicago (ORD)

    Layover in Chicago for 1h 32m

    Wed Jan 4th 2023 United Airlines · UA 4397 Depart at 9:10 am from Chicago (ORD) Fly for 1h 26m Arrive at 10:36 am in St. Louis (STL)

  • USD 259
    United Airlines
    7:31am - 12:22pm
    Thu Jan 5th
    5h 51m
    Washington, D.C. (IAD) → St. Louis (STL)
    1 Stop

    Thu Jan 5th 2023 United Airlines · UA 1941 Depart at 7:31 am from Washington, D.C. (IAD) Fly for 1h 19m Arrive at 8:50 am in New York (EWR)

    Layover in New York for 1h 43m

    Thu Jan 5th 2023 United Airlines · UA 573 Depart at 10:33 am from New York (EWR) Fly for 2h 49m Arrive at 12:22 pm in St. Louis (STL)

@sarahbb1
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

@eyupitsjohn
John Ford
@eyupitsjohn

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

@andy_travels
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 👍

@travelwitbender
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! 💪

Explore Flight Options

Cheap Flight Search Tips

Tips to help you find the cheapest flights from Washington to St. Louis (IAD to STL).

  • Book 45-90 days before your departure date.
  • Fly during weekdays (Monday-Thursday).
  • Airfare Sales: Airlines sometimes offer huge discounts and since we take a bottom-up approach these flights will appear first in the results, so check back regularly because they don't usually last long.

Why I Built FlightList

❝As someone who works remotely & travels frequently, I always book one way flights and I'm flexible on my departure dates. I look for the best deals. Most sites require you to enter a specific departure date and clutter the page with uneccessary options, images and ads. I want something simple and minimal which allows me to search by departure date range & display a list of flights with the ability to filter according to my needs. So, I built FlightList to solve my own problem & help other travelers who may have the same frustration. It's how I imagine a flight booking site should be.❞

- Hans Desjarlais, Founder & Creator Hans Desjarlais