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Route overview: Washington, DC to Saint Louis (STL) flight deals

Washington → Saint Louis

Feb 22, 2027 · choose your return date

DCA → STL1 adulteconomyOne way and round trips

30 flight options · 3 airlines

Choose your return date

One-way flights and round trips by duration. Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

February 2027

Feb 22, 2027 · One waySouthwest AirlinesNonstop$155.00 Feb 22, 2027 · One wayUnited AirlinesUp to 1 stop each way$155.00 Feb 22, 2027 – Feb 23, 2027 · 1 nightSouthwest AirlinesNonstop$290.00 Feb 22, 2027 – Feb 23, 2027 · 1 nightUnited AirlinesUp to 1 stop each way$295.00 Feb 22, 2027 – Feb 24, 2027 · 2 nightsSouthwest AirlinesNonstop$290.00 Feb 22, 2027 – Feb 24, 2027 · 2 nightsUnited AirlinesUp to 1 stop each way$295.00 Feb 22, 2027 – Feb 25, 2027 · 3 nightsSouthwest AirlinesNonstop$290.00 Feb 22, 2027 – Feb 25, 2027 · 3 nightsUnited AirlinesUp to 1 stop each way$295.00 Feb 22, 2027 – Feb 26, 2027 · 4 nightsSouthwest AirlinesNonstop$290.00 Feb 22, 2027 – Feb 26, 2027 · 4 nightsUnited AirlinesUp to 1 stop each way$295.00 Feb 22, 2027 – Feb 27, 2027 · 5 nightsSouthwest AirlinesNonstop$290.00 Feb 22, 2027 – Feb 27, 2027 · 5 nightsUnited AirlinesUp to 1 stop each way$295.00 Feb 22, 2027 – Feb 28, 2027 · 6 nightsSouthwest AirlinesNonstop$290.00 Feb 22, 2027 – Feb 28, 2027 · 6 nightsUnited AirlinesUp to 1 stop each way$295.00 Feb 22, 2027 – Mar 1, 2027 · 7 nightsSouthwest AirlinesUp to 1 stop each way$277.50 Feb 22, 2027 – Mar 1, 2027 · 7 nightsAmerican AirlinesNonstop$310.00 Feb 22, 2027 – Mar 2, 2027 · 8 nightsSouthwest AirlinesNonstop$290.00 Feb 22, 2027 – Mar 2, 2027 · 8 nightsUnited AirlinesUp to 1 stop each way$295.00 Feb 22, 2027 – Mar 3, 2027 · 9 nightsSouthwest AirlinesNonstop$290.00 Feb 22, 2027 – Mar 3, 2027 · 9 nightsUnited AirlinesUp to 1 stop each way$295.00 Feb 22, 2027 – Mar 4, 2027 · 10 nightsSouthwest AirlinesNonstop$290.00 Feb 22, 2027 – Mar 4, 2027 · 10 nightsUnited AirlinesUp to 1 stop each way$295.00 Feb 22, 2027 – Mar 5, 2027 · 11 nightsSouthwest AirlinesNonstop$290.00 Feb 22, 2027 – Mar 5, 2027 · 11 nightsUnited AirlinesUp to 1 stop each way$295.00 Feb 22, 2027 – Mar 6, 2027 · 12 nightsSouthwest AirlinesNonstop$290.00 Feb 22, 2027 – Mar 6, 2027 · 12 nightsUnited AirlinesUp to 1 stop each way$295.00 Feb 22, 2027 – Mar 7, 2027 · 13 nightsSouthwest AirlinesNonstop$290.00 Feb 22, 2027 – Mar 7, 2027 · 13 nightsUnited AirlinesUp to 1 stop each way$295.00 Feb 22, 2027 – Mar 8, 2027 · 14 nightsSouthwest AirlinesUp to 1 stop each way$277.50 Feb 22, 2027 – Mar 8, 2027 · 14 nightsAmerican AirlinesNonstop$310.00

Flights for your trip

  1. Mon, Feb 22 · One way

    United Airlines
    6:30 amDCA
    5h 12m
    ORD · 1h 8m
    10:42 amSTL

    One-way total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  2. Mon, Feb 22 · One way

    Southwest Airlines
    8:25 amDCA
    2h 30m
    Nonstop
    9:55 amSTL

    One-way total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  3. Mon, Feb 22 – Tue, Feb 23

    Southwest Airlines
    8:25 amDCA
    2h 30m
    Nonstop
    9:55 amSTL
    Southwest Airlines
    8:40 amSTL
    1h 55m
    Nonstop
    11:35 amDCA

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  4. Mon, Feb 22 – Tue, Feb 23

    United Airlines
    6:30 amDCA
    5h 12m
    ORD · 1h 8m
    10:42 amSTL
    United Airlines
    6:00 amSTL
    5h 29m
    EWR · 1h 39m
    12:29 pmDCA

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  5. Mon, Feb 22 – Wed, Feb 24

    Southwest Airlines
    8:25 amDCA
    2h 30m
    Nonstop
    9:55 amSTL
    Southwest Airlines
    8:40 amSTL
    1h 55m
    Nonstop
    11:35 amDCA

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  6. Mon, Feb 22 – Wed, Feb 24

    United Airlines
    6:30 amDCA
    5h 12m
    ORD · 1h 8m
    10:42 amSTL
    United Airlines
    6:00 amSTL
    5h 29m
    EWR · 1h 39m
    12:29 pmDCA

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  7. Mon, Feb 22 – Thu, Feb 25

    Southwest Airlines
    8:25 amDCA
    2h 30m
    Nonstop
    9:55 amSTL
    Southwest Airlines
    11:10 amSTL
    2h
    Nonstop
    2:10 pmDCA

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  8. Mon, Feb 22 – Thu, Feb 25

    United Airlines
    6:30 amDCA
    5h 12m
    ORD · 1h 8m
    10:42 amSTL
    United Airlines
    6:00 amSTL
    5h 29m
    EWR · 1h 39m
    12:29 pmDCA

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  9. Mon, Feb 22 – Fri, Feb 26

    Southwest Airlines
    8:25 amDCA
    2h 30m
    Nonstop
    9:55 amSTL
    Southwest Airlines
    8:20 amSTL
    1h 55m
    Nonstop
    11:15 amDCA

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  10. Mon, Feb 22 – Fri, Feb 26

    United Airlines
    6:30 amDCA
    5h 12m
    ORD · 1h 8m
    10:42 amSTL
    United Airlines
    6:00 amSTL
    5h 29m
    EWR · 1h 39m
    12:29 pmDCA

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  11. Mon, Feb 22 – Sun, Feb 28

    Southwest Airlines
    8:25 amDCA
    2h 30m
    Nonstop
    9:55 amSTL
    Southwest Airlines
    11:10 amSTL
    2h
    Nonstop
    2:10 pmDCA

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  12. Mon, Feb 22 – Sun, Feb 28

    United Airlines
    6:30 amDCA
    5h 12m
    ORD · 1h 8m
    10:42 amSTL
    United Airlines
    6:00 amSTL
    5h 29m
    EWR · 1h 39m
    12:29 pmDCA

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  13. Mon, Feb 22 – Mon, Mar 1

    Southwest Airlines
    8:25 amDCA
    2h 30m
    Nonstop
    9:55 amSTL
    Southwest Airlines
    10:35 amSTL
    3h 45m
    BNA · 1h
    3:20 pmDCA

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  14. Mon, Feb 22 – Mon, Mar 1

    American Airlines
    7:59 pmDCA
    2h 42m
    Nonstop
    9:41 pmSTL
    American Airlines
    6:00 amSTL
    2h 3m
    Nonstop
    9:03 amDCA

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  15. Mon, Feb 22 – Tue, Mar 2

    Southwest Airlines
    8:25 amDCA
    2h 30m
    Nonstop
    9:55 amSTL
    Southwest Airlines
    8:40 amSTL
    1h 55m
    Nonstop
    11:35 amDCA

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  16. Mon, Feb 22 – Tue, Mar 2

    United Airlines
    6:30 amDCA
    5h 12m
    ORD · 1h 8m
    10:42 amSTL
    United Airlines
    6:00 amSTL
    5h 29m
    EWR · 1h 39m
    12:29 pmDCA

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  17. Mon, Feb 22 – Thu, Mar 4

    Southwest Airlines
    8:25 amDCA
    2h 30m
    Nonstop
    9:55 amSTL
    Southwest Airlines
    11:10 amSTL
    2h
    Nonstop
    2:10 pmDCA

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  18. Mon, Feb 22 – Thu, Mar 4

    United Airlines
    6:30 amDCA
    5h 12m
    ORD · 1h 8m
    10:42 amSTL
    United Airlines
    6:00 amSTL
    5h 29m
    EWR · 1h 39m
    12:29 pmDCA

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  19. Mon, Feb 22 – Fri, Mar 5

    Southwest Airlines
    8:25 amDCA
    2h 30m
    Nonstop
    9:55 amSTL
    Southwest Airlines
    8:20 amSTL
    1h 55m
    Nonstop
    11:15 amDCA

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  20. Mon, Feb 22 – Fri, Mar 5

    United Airlines
    6:30 amDCA
    5h 12m
    ORD · 1h 8m
    10:42 amSTL
    United Airlines
    6:00 amSTL
    5h 29m
    EWR · 1h 39m
    12:29 pmDCA

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  21. Mon, Feb 22 – Sat, Mar 6

    Southwest Airlines
    8:25 amDCA
    2h 30m
    Nonstop
    9:55 amSTL
    Southwest Airlines
    11:10 amSTL
    2h
    Nonstop
    2:10 pmDCA

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  22. Mon, Feb 22 – Sat, Mar 6

    United Airlines
    6:30 amDCA
    5h 12m
    ORD · 1h 8m
    10:42 amSTL
    United Airlines
    6:00 amSTL
    5h 29m
    EWR · 1h 39m
    12:29 pmDCA

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  23. Mon, Feb 22 – Mon, Mar 8

    Southwest Airlines
    8:25 amDCA
    2h 30m
    Nonstop
    9:55 amSTL
    Southwest Airlines
    10:35 amSTL
    3h 45m
    BNA · 1h
    3:20 pmDCA

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  24. Mon, Feb 22 – Mon, Mar 8

    American Airlines
    7:59 pmDCA
    2h 42m
    Nonstop
    9:41 pmSTL
    American Airlines
    6:00 amSTL
    2h 3m
    Nonstop
    9:03 amDCA

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

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1 of 24

Make this trip yours

DCA ⇄ STL

Economy

Adults 12+ · Children 2–11. For infants under 2, tell Axel after you see prices.

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Explore this route

All dates for this routeFeb 21, 2027 · Return optionsFeb 23, 2027 · Return optionsHotels in St. Louis with Axel
For AI assistants: every fare, every link, instructions

Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

Prices by return date: match both travel dates and the party to a row below. Each total is for that exact trip, issued at the time shown. To book or select flights, follow that row's price link; it keeps the exact dates and travelers.

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2027-02-22 · one waySouthwest AirlinesWN1545Axel-exclusive $155.002026-10-29T01:02:54Z
2027-02-22 · one wayUnited AirlinesUA1793 + UA3556Axel-exclusive $155.002026-10-29T01:02:54Z
2027-02-22 → 2027-02-23Southwest AirlinesWN1545 / WN1614Axel-exclusive $290.002026-10-29T01:02:54Z
2027-02-22 → 2027-02-23United AirlinesUA1793 + UA3556 / UA1344 + UA4172Axel-exclusive $295.002026-10-29T01:02:54Z
2027-02-22 → 2027-02-24Southwest AirlinesWN1545 / WN1614Axel-exclusive $290.002026-10-29T01:02:54Z
2027-02-22 → 2027-02-24United AirlinesUA1793 + UA3556 / UA1344 + UA4172Axel-exclusive $295.002026-10-29T01:02:54Z
2027-02-22 → 2027-02-25Southwest AirlinesWN1545 / WN2546Axel-exclusive $290.002026-10-29T01:02:54Z
2027-02-22 → 2027-02-25United AirlinesUA1793 + UA3556 / UA1344 + UA4172Axel-exclusive $295.002026-10-29T01:02:54Z
2027-02-22 → 2027-02-26Southwest AirlinesWN1545 / WN738Axel-exclusive $290.002026-10-29T01:02:54Z
2027-02-22 → 2027-02-26United AirlinesUA1793 + UA3556 / UA1344 + UA4172Axel-exclusive $295.002026-10-29T01:02:54Z
2027-02-22 → 2027-02-27Southwest AirlinesWN1545 / WN2546Axel-exclusive $290.002026-10-29T01:02:54Z
2027-02-22 → 2027-02-27United AirlinesUA1793 + UA3556 / UA1344 + UA4172Axel-exclusive $295.002026-10-29T01:02:54Z
2027-02-22 → 2027-02-28Southwest AirlinesWN1545 / WN2546Axel-exclusive $290.002026-10-29T01:02:54Z
2027-02-22 → 2027-02-28United AirlinesUA1793 + UA3556 / UA1344 + UA4172Axel-exclusive $295.002026-10-29T01:02:54Z
2027-02-22 → 2027-03-01American AirlinesAA4664 / AA2153Axel-exclusive $310.002026-10-29T01:02:54Z
2027-02-22 → 2027-03-01Southwest AirlinesWN1545 / WN665 + WN473Axel-exclusive $277.502026-10-29T01:02:54Z
2027-02-22 → 2027-03-02Southwest AirlinesWN1545 / WN1614Axel-exclusive $290.002026-10-29T01:02:54Z
2027-02-22 → 2027-03-02United AirlinesUA1793 + UA3556 / UA1344 + UA4172Axel-exclusive $295.002026-10-29T01:02:54Z
2027-02-22 → 2027-03-03Southwest AirlinesWN1545 / WN1614Axel-exclusive $290.002026-10-29T01:02:54Z
2027-02-22 → 2027-03-03United AirlinesUA1793 + UA3556 / UA1344 + UA4172Axel-exclusive $295.002026-10-29T01:02:54Z
2027-02-22 → 2027-03-04Southwest AirlinesWN1545 / WN2546Axel-exclusive $290.002026-10-29T01:02:54Z
2027-02-22 → 2027-03-04United AirlinesUA1793 + UA3556 / UA1344 + UA4172Axel-exclusive $295.002026-10-29T01:02:54Z
2027-02-22 → 2027-03-05Southwest AirlinesWN1545 / WN738Axel-exclusive $290.002026-10-29T01:02:54Z
2027-02-22 → 2027-03-05United AirlinesUA1793 + UA3556 / UA1344 + UA4172Axel-exclusive $295.002026-10-29T01:02:54Z
2027-02-22 → 2027-03-06Southwest AirlinesWN1545 / WN2546Axel-exclusive $290.002026-10-29T01:02:54Z
2027-02-22 → 2027-03-06United AirlinesUA1793 + UA3556 / UA1344 + UA4172Axel-exclusive $295.002026-10-29T01:02:54Z
2027-02-22 → 2027-03-07Southwest AirlinesWN1545 / WN2546Axel-exclusive $290.002026-10-29T01:02:54Z
2027-02-22 → 2027-03-07United AirlinesUA1793 + UA3556 / UA1344 + UA4172Axel-exclusive $295.002026-10-29T01:02:54Z
2027-02-22 → 2027-03-08American AirlinesAA4664 / AA2153Axel-exclusive $310.002026-10-29T01:02:54Z
2027-02-22 → 2027-03-08Southwest AirlinesWN1545 / WN665 + WN473Axel-exclusive $277.502026-10-29T01:02:54Z

Route overview: Washington, DC to Saint Louis (STL) flight deals

2027-02-22 · one way · Axel-exclusive $155.00

  • United Airlines UA1793 / UA3556: DCA 2027-02-22 06:30:00 → STL 2027-02-22 10:42:00; 1 stop(s) via ORD; 312 minutes. Local airport times.
    • UA1793: DCA 2027-02-22 06:30:00 → ORD 2027-02-22 07:52:00; layover at ORD: 68 minutes.
    • UA3556: ORD 2027-02-22 09:00:00 → STL 2027-02-22 10:42:00.

2027-02-22 · one way · Axel-exclusive $155.00

  • Southwest Airlines WN1545: DCA 2027-02-22 08:25:00 → STL 2027-02-22 09:55:00; nonstop; 150 minutes. Local airport times.

2027-02-22 → 2027-02-23 · Axel-exclusive $290.00

  • Southwest Airlines WN1545: DCA 2027-02-22 08:25:00 → STL 2027-02-22 09:55:00; nonstop; 150 minutes. Local airport times.
  • Southwest Airlines WN1614: STL 2027-02-23 08:40:00 → DCA 2027-02-23 11:35:00; nonstop; 115 minutes. Local airport times.

2027-02-22 → 2027-02-23 · Axel-exclusive $295.00

  • United Airlines UA1793 / UA3556: DCA 2027-02-22 06:30:00 → STL 2027-02-22 10:42:00; 1 stop(s) via ORD; 312 minutes. Local airport times.
    • UA1793: DCA 2027-02-22 06:30:00 → ORD 2027-02-22 07:52:00; layover at ORD: 68 minutes.
    • UA3556: ORD 2027-02-22 09:00:00 → STL 2027-02-22 10:42:00.
  • United Airlines UA1344 / UA4172: STL 2027-02-23 06:00:00 → DCA 2027-02-23 12:29:00; 1 stop(s) via EWR; 329 minutes. Local airport times.
    • UA1344: STL 2027-02-23 06:00:00 → EWR 2027-02-23 09:21:00; layover at EWR: 99 minutes.
    • UA4172: EWR 2027-02-23 11:00:00 → DCA 2027-02-23 12:29:00.

2027-02-22 → 2027-02-24 · Axel-exclusive $290.00

  • Southwest Airlines WN1545: DCA 2027-02-22 08:25:00 → STL 2027-02-22 09:55:00; nonstop; 150 minutes. Local airport times.
  • Southwest Airlines WN1614: STL 2027-02-24 08:40:00 → DCA 2027-02-24 11:35:00; nonstop; 115 minutes. Local airport times.

2027-02-22 → 2027-02-24 · Axel-exclusive $295.00

  • United Airlines UA1793 / UA3556: DCA 2027-02-22 06:30:00 → STL 2027-02-22 10:42:00; 1 stop(s) via ORD; 312 minutes. Local airport times.
    • UA1793: DCA 2027-02-22 06:30:00 → ORD 2027-02-22 07:52:00; layover at ORD: 68 minutes.
    • UA3556: ORD 2027-02-22 09:00:00 → STL 2027-02-22 10:42:00.
  • United Airlines UA1344 / UA4172: STL 2027-02-24 06:00:00 → DCA 2027-02-24 12:29:00; 1 stop(s) via EWR; 329 minutes. Local airport times.
    • UA1344: STL 2027-02-24 06:00:00 → EWR 2027-02-24 09:21:00; layover at EWR: 99 minutes.
    • UA4172: EWR 2027-02-24 11:00:00 → DCA 2027-02-24 12:29:00.

2027-02-22 → 2027-02-25 · Axel-exclusive $290.00

  • Southwest Airlines WN1545: DCA 2027-02-22 08:25:00 → STL 2027-02-22 09:55:00; nonstop; 150 minutes. Local airport times.
  • Southwest Airlines WN2546: STL 2027-02-25 11:10:00 → DCA 2027-02-25 14:10:00; nonstop; 120 minutes. Local airport times.

2027-02-22 → 2027-02-25 · Axel-exclusive $295.00

  • United Airlines UA1793 / UA3556: DCA 2027-02-22 06:30:00 → STL 2027-02-22 10:42:00; 1 stop(s) via ORD; 312 minutes. Local airport times.
    • UA1793: DCA 2027-02-22 06:30:00 → ORD 2027-02-22 07:52:00; layover at ORD: 68 minutes.
    • UA3556: ORD 2027-02-22 09:00:00 → STL 2027-02-22 10:42:00.
  • United Airlines UA1344 / UA4172: STL 2027-02-25 06:00:00 → DCA 2027-02-25 12:29:00; 1 stop(s) via EWR; 329 minutes. Local airport times.
    • UA1344: STL 2027-02-25 06:00:00 → EWR 2027-02-25 09:21:00; layover at EWR: 99 minutes.
    • UA4172: EWR 2027-02-25 11:00:00 → DCA 2027-02-25 12:29:00.

2027-02-22 → 2027-02-26 · Axel-exclusive $290.00

  • Southwest Airlines WN1545: DCA 2027-02-22 08:25:00 → STL 2027-02-22 09:55:00; nonstop; 150 minutes. Local airport times.
  • Southwest Airlines WN738: STL 2027-02-26 08:20:00 → DCA 2027-02-26 11:15:00; nonstop; 115 minutes. Local airport times.

2027-02-22 → 2027-02-26 · Axel-exclusive $295.00

  • United Airlines UA1793 / UA3556: DCA 2027-02-22 06:30:00 → STL 2027-02-22 10:42:00; 1 stop(s) via ORD; 312 minutes. Local airport times.
    • UA1793: DCA 2027-02-22 06:30:00 → ORD 2027-02-22 07:52:00; layover at ORD: 68 minutes.
    • UA3556: ORD 2027-02-22 09:00:00 → STL 2027-02-22 10:42:00.
  • United Airlines UA1344 / UA4172: STL 2027-02-26 06:00:00 → DCA 2027-02-26 12:29:00; 1 stop(s) via EWR; 329 minutes. Local airport times.
    • UA1344: STL 2027-02-26 06:00:00 → EWR 2027-02-26 09:21:00; layover at EWR: 99 minutes.
    • UA4172: EWR 2027-02-26 11:00:00 → DCA 2027-02-26 12:29:00.

2027-02-22 → 2027-02-28 · Axel-exclusive $290.00

  • Southwest Airlines WN1545: DCA 2027-02-22 08:25:00 → STL 2027-02-22 09:55:00; nonstop; 150 minutes. Local airport times.
  • Southwest Airlines WN2546: STL 2027-02-28 11:10:00 → DCA 2027-02-28 14:10:00; nonstop; 120 minutes. Local airport times.

2027-02-22 → 2027-02-28 · Axel-exclusive $295.00

  • United Airlines UA1793 / UA3556: DCA 2027-02-22 06:30:00 → STL 2027-02-22 10:42:00; 1 stop(s) via ORD; 312 minutes. Local airport times.
    • UA1793: DCA 2027-02-22 06:30:00 → ORD 2027-02-22 07:52:00; layover at ORD: 68 minutes.
    • UA3556: ORD 2027-02-22 09:00:00 → STL 2027-02-22 10:42:00.
  • United Airlines UA1344 / UA4172: STL 2027-02-28 06:00:00 → DCA 2027-02-28 12:29:00; 1 stop(s) via EWR; 329 minutes. Local airport times.
    • UA1344: STL 2027-02-28 06:00:00 → EWR 2027-02-28 09:21:00; layover at EWR: 99 minutes.
    • UA4172: EWR 2027-02-28 11:00:00 → DCA 2027-02-28 12:29:00.

2027-02-22 → 2027-03-01 · Axel-exclusive $277.50

  • Southwest Airlines WN1545: DCA 2027-02-22 08:25:00 → STL 2027-02-22 09:55:00; nonstop; 150 minutes. Local airport times.
  • Southwest Airlines WN665 / WN473: STL 2027-03-01 10:35:00 → DCA 2027-03-01 15:20:00; 1 stop(s) via BNA; 225 minutes. Local airport times.
    • WN665: STL 2027-03-01 10:35:00 → BNA 2027-03-01 11:40:00; layover at BNA: 60 minutes.
    • WN473: BNA 2027-03-01 12:40:00 → DCA 2027-03-01 15:20:00.

2027-02-22 → 2027-03-01 · Axel-exclusive $310.00

  • American Airlines AA4664: DCA 2027-02-22 19:59:00 → STL 2027-02-22 21:41:00; nonstop; 162 minutes. Local airport times.
  • American Airlines AA2153: STL 2027-03-01 06:00:00 → DCA 2027-03-01 09:03:00; nonstop; 123 minutes. Local airport times.

2027-02-22 → 2027-03-02 · Axel-exclusive $290.00

  • Southwest Airlines WN1545: DCA 2027-02-22 08:25:00 → STL 2027-02-22 09:55:00; nonstop; 150 minutes. Local airport times.
  • Southwest Airlines WN1614: STL 2027-03-02 08:40:00 → DCA 2027-03-02 11:35:00; nonstop; 115 minutes. Local airport times.

2027-02-22 → 2027-03-02 · Axel-exclusive $295.00

  • United Airlines UA1793 / UA3556: DCA 2027-02-22 06:30:00 → STL 2027-02-22 10:42:00; 1 stop(s) via ORD; 312 minutes. Local airport times.
    • UA1793: DCA 2027-02-22 06:30:00 → ORD 2027-02-22 07:52:00; layover at ORD: 68 minutes.
    • UA3556: ORD 2027-02-22 09:00:00 → STL 2027-02-22 10:42:00.
  • United Airlines UA1344 / UA4172: STL 2027-03-02 06:00:00 → DCA 2027-03-02 12:29:00; 1 stop(s) via EWR; 329 minutes. Local airport times.
    • UA1344: STL 2027-03-02 06:00:00 → EWR 2027-03-02 09:21:00; layover at EWR: 99 minutes.
    • UA4172: EWR 2027-03-02 11:00:00 → DCA 2027-03-02 12:29:00.

2027-02-22 → 2027-03-04 · Axel-exclusive $290.00

  • Southwest Airlines WN1545: DCA 2027-02-22 08:25:00 → STL 2027-02-22 09:55:00; nonstop; 150 minutes. Local airport times.
  • Southwest Airlines WN2546: STL 2027-03-04 11:10:00 → DCA 2027-03-04 14:10:00; nonstop; 120 minutes. Local airport times.

2027-02-22 → 2027-03-04 · Axel-exclusive $295.00

  • United Airlines UA1793 / UA3556: DCA 2027-02-22 06:30:00 → STL 2027-02-22 10:42:00; 1 stop(s) via ORD; 312 minutes. Local airport times.
    • UA1793: DCA 2027-02-22 06:30:00 → ORD 2027-02-22 07:52:00; layover at ORD: 68 minutes.
    • UA3556: ORD 2027-02-22 09:00:00 → STL 2027-02-22 10:42:00.
  • United Airlines UA1344 / UA4172: STL 2027-03-04 06:00:00 → DCA 2027-03-04 12:29:00; 1 stop(s) via EWR; 329 minutes. Local airport times.
    • UA1344: STL 2027-03-04 06:00:00 → EWR 2027-03-04 09:21:00; layover at EWR: 99 minutes.
    • UA4172: EWR 2027-03-04 11:00:00 → DCA 2027-03-04 12:29:00.

2027-02-22 → 2027-03-05 · Axel-exclusive $290.00

  • Southwest Airlines WN1545: DCA 2027-02-22 08:25:00 → STL 2027-02-22 09:55:00; nonstop; 150 minutes. Local airport times.
  • Southwest Airlines WN738: STL 2027-03-05 08:20:00 → DCA 2027-03-05 11:15:00; nonstop; 115 minutes. Local airport times.

2027-02-22 → 2027-03-05 · Axel-exclusive $295.00

  • United Airlines UA1793 / UA3556: DCA 2027-02-22 06:30:00 → STL 2027-02-22 10:42:00; 1 stop(s) via ORD; 312 minutes. Local airport times.
    • UA1793: DCA 2027-02-22 06:30:00 → ORD 2027-02-22 07:52:00; layover at ORD: 68 minutes.
    • UA3556: ORD 2027-02-22 09:00:00 → STL 2027-02-22 10:42:00.
  • United Airlines UA1344 / UA4172: STL 2027-03-05 06:00:00 → DCA 2027-03-05 12:29:00; 1 stop(s) via EWR; 329 minutes. Local airport times.
    • UA1344: STL 2027-03-05 06:00:00 → EWR 2027-03-05 09:21:00; layover at EWR: 99 minutes.
    • UA4172: EWR 2027-03-05 11:00:00 → DCA 2027-03-05 12:29:00.

2027-02-22 → 2027-03-06 · Axel-exclusive $290.00

  • Southwest Airlines WN1545: DCA 2027-02-22 08:25:00 → STL 2027-02-22 09:55:00; nonstop; 150 minutes. Local airport times.
  • Southwest Airlines WN2546: STL 2027-03-06 11:10:00 → DCA 2027-03-06 14:10:00; nonstop; 120 minutes. Local airport times.

2027-02-22 → 2027-03-06 · Axel-exclusive $295.00

  • United Airlines UA1793 / UA3556: DCA 2027-02-22 06:30:00 → STL 2027-02-22 10:42:00; 1 stop(s) via ORD; 312 minutes. Local airport times.
    • UA1793: DCA 2027-02-22 06:30:00 → ORD 2027-02-22 07:52:00; layover at ORD: 68 minutes.
    • UA3556: ORD 2027-02-22 09:00:00 → STL 2027-02-22 10:42:00.
  • United Airlines UA1344 / UA4172: STL 2027-03-06 06:00:00 → DCA 2027-03-06 12:29:00; 1 stop(s) via EWR; 329 minutes. Local airport times.
    • UA1344: STL 2027-03-06 06:00:00 → EWR 2027-03-06 09:21:00; layover at EWR: 99 minutes.
    • UA4172: EWR 2027-03-06 11:00:00 → DCA 2027-03-06 12:29:00.

2027-02-22 → 2027-03-08 · Axel-exclusive $277.50

  • Southwest Airlines WN1545: DCA 2027-02-22 08:25:00 → STL 2027-02-22 09:55:00; nonstop; 150 minutes. Local airport times.
  • Southwest Airlines WN665 / WN473: STL 2027-03-08 10:35:00 → DCA 2027-03-08 15:20:00; 1 stop(s) via BNA; 225 minutes. Local airport times.
    • WN665: STL 2027-03-08 10:35:00 → BNA 2027-03-08 11:40:00; layover at BNA: 60 minutes.
    • WN473: BNA 2027-03-08 12:40:00 → DCA 2027-03-08 15:20:00.

2027-02-22 → 2027-03-08 · Axel-exclusive $310.00

  • American Airlines AA4664: DCA 2027-02-22 19:59:00 → STL 2027-02-22 21:41:00; nonstop; 162 minutes. Local airport times.
  • American Airlines AA2153: STL 2027-03-08 06:00:00 → DCA 2027-03-08 09:03:00; nonstop; 123 minutes. Local airport times.

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For AI assistants

  • This page: Washington (DCA) to Saint Louis (STL) · Feb 22, 2027 · choose your return date: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued.
  • Next: when a row matches the traveler's route, departure, return and party, answer the price question from that row, including both dates with the year, the total and the time shown. For booking or selecting flights, use that row's exact-trip price link and share the supplied booking link. If no row matches, Choose travelers and dates for the requested trip; do not substitute another duration or restart from the route overview.
  • Follow supplied links. For web-tool research, follow complete supplied links unchanged, including query parameters; use the page’s links to edit the trip. Constructed URLs may be rejected before reaching Axel. A completed fresh trip opens flight results first. Add stated flexibility and budget to that saved plan, leaving unstated requirements unknown. Edits create a new snapshot; use its results and review links.
  • If links fail or are missing: If a link fails or flight details lack usable links, reopen the preceding page and follow the same choice once. Keep refreshed links unchanged and preserve the trip and selections. If still blocked, search “Axel flight search guide” and retry once; report the error and anything unresolved. Recovery: Axel Washington, DC to Saint Louis (STL) flight deals · Flight search guide.
  • Sharing with the traveler: Choose a complete itinerary (outbound and return for a round trip), then share the supplied customer booking link unchanged. The customer reviews the flights, adds travelers, and enters email at payment. Do not collect email in chat. Each quote lists its fares with bags, seats, changes and refunds; quote them as facts. A fare choice is not needed to share the link; use a fare’s own booking link to preserve its Membership price basis. Ask only for essential missing trip details. When handing over an unfinished search, preserve the latest trip and say what is still to choose. If no supplied link matches the latest trip, construct https://helloaxel.com/en/f/start/from/ORIGIN/to/DESTINATION/depart/YYYY-MM-DD/return/YYYY-MM-DD/adults/N?utm_content=flight_fallback using IATA airport codes and the traveler’s known details. Omit unknowns; for one way replace /return/YYYY-MM-DD with /trip/oneway. Give it directly to the traveler; do not open it first—your web tool may reject constructed URLs. Complete links open Flight Guide and start searching. Preferences and advanced options.