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Saint Louis → Washington

Dec 22, 2026 · return Dec 23, 2026

STL → DCA1 adulteconomyRound trip

9 flight options · 3 airlines

Nonstop flights

Tue, Dec 22 – Wed, Dec 23

Southwest Airlines
8:40 amSTL
1h 55m
Nonstop
11:35 amDCA
Southwest Airlines
2:40 pmDCA
2h 25m
Nonstop
4:05 pmSTL

Round-trip total · 1 adult · Taxes included

Tue, Dec 22 – Wed, Dec 23

American Airlines
7:00 amSTL
2h 8m
Nonstop
10:08 amDCA
American Airlines
8:11 amDCA
2h 44m
Nonstop
9:55 amSTL

Round-trip total · 1 adult · Taxes included

Tue, Dec 22 – Wed, Dec 23

American Airlines
3:51 pmSTL
2h 3m
Nonstop
6:54 pmDCA
American Airlines
8:11 amDCA
2h 44m
Nonstop
9:55 amSTL

Round-trip total · 1 adult · Taxes included

One-stop flights

Tue, Dec 22 – Wed, Dec 23

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

Round-trip total · 1 adult · Taxes included

Tue, Dec 22 – Wed, Dec 23

Southwest Airlines
4:30 pmSTL
4h 25m
ATL · 1h 10m
9:55 pmDCA
Southwest Airlines
2:40 pmDCA
2h 25m
Nonstop
4:05 pmSTL

Round-trip total · 1 adult · Taxes included

Tue, Dec 22 – Wed, Dec 23

Southwest Airlines
10:35 amSTL
3h 45m
BNA · 1h
3:20 pmDCA
Southwest Airlines
2:40 pmDCA
2h 25m
Nonstop
4:05 pmSTL

Round-trip total · 1 adult · Taxes included

Tue, Dec 22 – Wed, Dec 23

American Airlines
11:37 amSTL
5h 22m
ORD · 1h 57m
5:59 pmDCA
American Airlines
8:11 amDCA
2h 44m
Nonstop
9:55 amSTL

Round-trip total · 1 adult · Taxes included

Tue, Dec 22 – Wed, Dec 23

American Airlines
12:54 pmSTL
4h 31m
CLT · 1h 10m
6:25 pmDCA
American Airlines
8:11 amDCA
2h 44m
Nonstop
9:55 amSTL

Round-trip total · 1 adult · Taxes included

Tue, Dec 22 – Wed, Dec 23

American Airlines
3:41 pmSTL
2h 6m
Nonstop
6:47 pmDCA
American Airlines
6:17 amDCA
5h 2m
CLT · 1h 17m
10:19 amSTL

Round-trip total · 1 adult · Taxes included

Make this trip yours

STL ⇄ DCA

Economy

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

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More dates

All dates for this routeNov 20, 2026 → Nov 23, 2026Nov 27, 2026 → Dec 4, 2026Nov 20, 2026 · One way
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.

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2026-12-22 → 2026-12-23Southwest AirlinesWN1614 / WN754$356.262026-10-29T01:28:26Z
2026-12-22 → 2026-12-23American AirlinesAA4703 / AA4458$400.002026-10-29T01:28:26Z
2026-12-22 → 2026-12-23United AirlinesUA1344 + UA4172 / UA1793 + UA3556$381.262026-10-29T01:28:26Z
2026-12-22 → 2026-12-23American AirlinesAA4769 / AA4458$400.002026-10-29T01:28:26Z
2026-12-22 → 2026-12-23Southwest AirlinesWN3091 + WN2357 / WN754$346.882026-10-29T01:28:26Z
2026-12-22 → 2026-12-23Southwest AirlinesWN665 + WN473 / WN754$346.882026-10-29T01:28:26Z
2026-12-22 → 2026-12-23American AirlinesAA3198 + AA523 / AA4458$384.382026-10-29T01:28:26Z
2026-12-22 → 2026-12-23American AirlinesAA2486 + AA612 / AA4458$384.382026-10-29T01:28:26Z
2026-12-22 → 2026-12-23American AirlinesAA4769 / AA1617 + AA2486$384.382026-10-29T01:28:26Z

2026-12-22 → 2026-12-23 · $356.26

  • Southwest Airlines WN1614: STL 2026-12-22 08:40:00 → DCA 2026-12-22 11:35:00; nonstop; 115 minutes. Local airport times.
  • Southwest Airlines WN754: DCA 2026-12-23 14:40:00 → STL 2026-12-23 16:05:00; nonstop; 145 minutes. Local airport times.

2026-12-22 → 2026-12-23 · $400.00

  • American Airlines AA4703: STL 2026-12-22 07:00:00 → DCA 2026-12-22 10:08:00; nonstop; 128 minutes. Local airport times.
  • American Airlines AA4458: DCA 2026-12-23 08:11:00 → STL 2026-12-23 09:55:00; nonstop; 164 minutes. Local airport times.

2026-12-22 → 2026-12-23 · $381.26

  • United Airlines UA1344 / UA4172: STL 2026-12-22 06:00:00 → DCA 2026-12-22 12:29:00; 1 stop(s) via EWR; 329 minutes. Local airport times.
    • UA1344: STL 2026-12-22 06:00:00 → EWR 2026-12-22 09:21:00; layover at EWR: 99 minutes.
    • UA4172: EWR 2026-12-22 11:00:00 → DCA 2026-12-22 12:29:00.
  • United Airlines UA1793 / UA3556: DCA 2026-12-23 06:30:00 → STL 2026-12-23 10:42:00; 1 stop(s) via ORD; 312 minutes. Local airport times.
    • UA1793: DCA 2026-12-23 06:30:00 → ORD 2026-12-23 07:52:00; layover at ORD: 68 minutes.
    • UA3556: ORD 2026-12-23 09:00:00 → STL 2026-12-23 10:42:00.

2026-12-22 → 2026-12-23 · $400.00

  • American Airlines AA4769: STL 2026-12-22 15:51:00 → DCA 2026-12-22 18:54:00; nonstop; 123 minutes. Local airport times.
  • American Airlines AA4458: DCA 2026-12-23 08:11:00 → STL 2026-12-23 09:55:00; nonstop; 164 minutes. Local airport times.

2026-12-22 → 2026-12-23 · $346.88

  • Southwest Airlines WN3091 / WN2357: STL 2026-12-22 16:30:00 → DCA 2026-12-22 21:55:00; 1 stop(s) via ATL; 265 minutes. Local airport times.
    • WN3091: STL 2026-12-22 16:30:00 → ATL 2026-12-22 19:00:00; layover at ATL: 70 minutes.
    • WN2357: ATL 2026-12-22 20:10:00 → DCA 2026-12-22 21:55:00.
  • Southwest Airlines WN754: DCA 2026-12-23 14:40:00 → STL 2026-12-23 16:05:00; nonstop; 145 minutes. Local airport times.

2026-12-22 → 2026-12-23 · $346.88

  • Southwest Airlines WN665 / WN473: STL 2026-12-22 10:35:00 → DCA 2026-12-22 15:20:00; 1 stop(s) via BNA; 225 minutes. Local airport times.
    • WN665: STL 2026-12-22 10:35:00 → BNA 2026-12-22 11:40:00; layover at BNA: 60 minutes.
    • WN473: BNA 2026-12-22 12:40:00 → DCA 2026-12-22 15:20:00.
  • Southwest Airlines WN754: DCA 2026-12-23 14:40:00 → STL 2026-12-23 16:05:00; nonstop; 145 minutes. Local airport times.

2026-12-22 → 2026-12-23 · $384.38

  • American Airlines AA3198 / AA523: STL 2026-12-22 11:37:00 → DCA 2026-12-22 17:59:00; 1 stop(s) via ORD; 322 minutes. Local airport times.
    • AA3198: STL 2026-12-22 11:37:00 → ORD 2026-12-22 12:59:00; layover at ORD: 117 minutes.
    • AA523: ORD 2026-12-22 14:56:00 → DCA 2026-12-22 17:59:00.
  • American Airlines AA4458: DCA 2026-12-23 08:11:00 → STL 2026-12-23 09:55:00; nonstop; 164 minutes. Local airport times.

2026-12-22 → 2026-12-23 · $384.38

  • American Airlines AA2486 / AA612: STL 2026-12-22 12:54:00 → DCA 2026-12-22 18:25:00; 1 stop(s) via CLT; 271 minutes. Local airport times.
    • AA2486: STL 2026-12-22 12:54:00 → CLT 2026-12-22 15:42:00; layover at CLT: 70 minutes.
    • AA612: CLT 2026-12-22 16:52:00 → DCA 2026-12-22 18:25:00.
  • American Airlines AA4458: DCA 2026-12-23 08:11:00 → STL 2026-12-23 09:55:00; nonstop; 164 minutes. Local airport times.

2026-12-22 → 2026-12-23 · $384.38

  • American Airlines AA4769: STL 2026-12-22 15:41:00 → DCA 2026-12-22 18:47:00; nonstop; 126 minutes. Local airport times.
  • American Airlines AA1617 / AA2486: DCA 2026-12-23 06:17:00 → STL 2026-12-23 10:19:00; 1 stop(s) via CLT; 302 minutes. Local airport times.
    • AA1617: DCA 2026-12-23 06:17:00 → CLT 2026-12-23 07:58:00; layover at CLT: 77 minutes.
    • AA2486: CLT 2026-12-23 09:15:00 → STL 2026-12-23 10:19:00.

More dates for this route