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Saint Louis → Washington

Dec 12, 2026 · return Dec 16, 2026

STL → DCA1 adulteconomyRound trip

9 flight options · 3 airlines

Nonstop flights

Sat, Dec 12 – Wed, Dec 16

Southwest Airlines
8:10 amSTL
1h 55m
Nonstop
11:05 amDCA
Southwest Airlines
2:40 pmDCA
2h 25m
Nonstop
4:05 pmSTL

Round-trip total · 1 adult · Taxes included

Sat, Dec 12 – Wed, Dec 16

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

Sat, Dec 12 – Wed, Dec 16

American Airlines
6:00 amSTL
2h 3m
Nonstop
9:03 amDCA
American Airlines
8:11 amDCA
2h 44m
Nonstop
9:55 amSTL

Round-trip total · 1 adult · Taxes included

One-stop flights

Sat, Dec 12 – Wed, Dec 16

Delta Air Lines
10:14 amSTL
5h 24m
DTW · 2h 20m
4:38 pmDCA
Delta Air Lines
9:45 amDCA
4h 45m
DTW · 1h 21m
1:30 pmSTL

Round-trip total · 1 adult · Taxes included

Sat, Dec 12 – Wed, Dec 16

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

Sat, Dec 12 – Wed, Dec 16

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

Sat, Dec 12 – Wed, Dec 16

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

Sat, Dec 12 – Wed, Dec 16

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

Sat, Dec 12 – Wed, Dec 16

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

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)
2026-12-12 → 2026-12-16Southwest AirlinesWN4137 / WN754$285.002026-10-29T01:28:26Z
2026-12-12 → 2026-12-16American AirlinesAA4769 / AA4458$320.002026-10-29T01:28:26Z
2026-12-12 → 2026-12-16Delta Air LinesDL2868 + DL1454 / DL1558 + DL1371$315.002026-10-29T01:28:26Z
2026-12-12 → 2026-12-16American AirlinesAA2153 / AA4458$320.002026-10-29T01:28:26Z
2026-12-12 → 2026-12-16Southwest AirlinesWN3091 + WN2357 / WN754$277.502026-10-29T01:28:26Z
2026-12-12 → 2026-12-16Southwest AirlinesWN665 + WN473 / WN754$277.502026-10-29T01:28:26Z
2026-12-12 → 2026-12-16American AirlinesAA2486 + AA612 / AA4458$307.502026-10-29T01:28:26Z
2026-12-12 → 2026-12-16American AirlinesAA4769 / AA1617 + AA2486$307.502026-10-29T01:28:26Z
2026-12-12 → 2026-12-16American AirlinesAA3198 + AA523 / AA4458$307.502026-10-29T01:28:26Z

2026-12-12 → 2026-12-16 · $285.00

  • Southwest Airlines WN4137: STL 2026-12-12 08:10:00 → DCA 2026-12-12 11:05:00; nonstop; 115 minutes. Local airport times.
  • Southwest Airlines WN754: DCA 2026-12-16 14:40:00 → STL 2026-12-16 16:05:00; nonstop; 145 minutes. Local airport times.

2026-12-12 → 2026-12-16 · $320.00

  • American Airlines AA4769: STL 2026-12-12 15:51:00 → DCA 2026-12-12 18:54:00; nonstop; 123 minutes. Local airport times.
  • American Airlines AA4458: DCA 2026-12-16 08:11:00 → STL 2026-12-16 09:55:00; nonstop; 164 minutes. Local airport times.

2026-12-12 → 2026-12-16 · $315.00

  • Delta Air Lines DL2868 / DL1454: STL 2026-12-12 10:14:00 → DCA 2026-12-12 16:38:00; 1 stop(s) via DTW; 324 minutes. Local airport times.
    • DL2868: STL 2026-12-12 10:14:00 → DTW 2026-12-12 12:46:00; layover at DTW: 140 minutes.
    • DL1454: DTW 2026-12-12 15:06:00 → DCA 2026-12-12 16:38:00.
  • Delta Air Lines DL1558 / DL1371: DCA 2026-12-16 09:45:00 → STL 2026-12-16 13:30:00; 1 stop(s) via DTW; 285 minutes. Local airport times.
    • DL1558: DCA 2026-12-16 09:45:00 → DTW 2026-12-16 11:22:00; layover at DTW: 81 minutes.
    • DL1371: DTW 2026-12-16 12:43:00 → STL 2026-12-16 13:30:00.

2026-12-12 → 2026-12-16 · $320.00

  • American Airlines AA2153: STL 2026-12-12 06:00:00 → DCA 2026-12-12 09:03:00; nonstop; 123 minutes. Local airport times.
  • American Airlines AA4458: DCA 2026-12-16 08:11:00 → STL 2026-12-16 09:55:00; nonstop; 164 minutes. Local airport times.

2026-12-12 → 2026-12-16 · $277.50

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

2026-12-12 → 2026-12-16 · $277.50

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

2026-12-12 → 2026-12-16 · $307.50

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

2026-12-12 → 2026-12-16 · $307.50

  • American Airlines AA4769: STL 2026-12-12 15:41:00 → DCA 2026-12-12 18:47:00; nonstop; 126 minutes. Local airport times.
  • American Airlines AA1617 / AA2486: DCA 2026-12-16 06:17:00 → STL 2026-12-16 10:19:00; 1 stop(s) via CLT; 302 minutes. Local airport times.
    • AA1617: DCA 2026-12-16 06:17:00 → CLT 2026-12-16 07:58:00; layover at CLT: 77 minutes.
    • AA2486: CLT 2026-12-16 09:15:00 → STL 2026-12-16 10:19:00.

2026-12-12 → 2026-12-16 · $307.50

  • American Airlines AA3198 / AA523: STL 2026-12-12 11:37:00 → DCA 2026-12-12 17:59:00; 1 stop(s) via ORD; 322 minutes. Local airport times.
    • AA3198: STL 2026-12-12 11:37:00 → ORD 2026-12-12 12:59:00; layover at ORD: 117 minutes.
    • AA523: ORD 2026-12-12 14:56:00 → DCA 2026-12-12 17:59:00.
  • American Airlines AA4458: DCA 2026-12-16 08:11:00 → STL 2026-12-16 09:55:00; nonstop; 164 minutes. Local airport times.

More dates for this route