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Saint Louis → Washington

Jan 21, 2027 · return Jan 22, 2027

STL → DCA1 adulteconomyRound trip

9 flight options · 4 airlines

Nonstop flights

Thu, Jan 21 – Fri, Jan 22

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

Thu, Jan 21 – Fri, Jan 22

American Airlines
6:00 amSTL
2h 3m
Nonstop
9:03 amDCA
American Airlines
8:03 pmDCA
2h 35m
Nonstop
9:38 pmSTL

Round-trip total · 1 adult · Taxes included

Thu, Jan 21 – Fri, Jan 22

American Airlines
3:40 pmSTL
2h 6m
Nonstop
6:46 pmDCA
American Airlines
8:03 pmDCA
2h 35m
Nonstop
9:38 pmSTL

Round-trip total · 1 adult · Taxes included

One-stop flights

Thu, Jan 21 – Fri, Jan 22

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

Thu, Jan 21 – Fri, Jan 22

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

Thu, Jan 21 – Fri, Jan 22

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

Thu, Jan 21 – Fri, Jan 22

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

Thu, Jan 21 – Fri, Jan 22

American Airlines
11:37 amSTL
5h 22m
ORD · 1h 57m
5:59 pmDCA
American Airlines
8:03 pmDCA
2h 35m
Nonstop
9:38 pmSTL

Round-trip total · 1 adult · Taxes included

Thu, Jan 21 – Fri, Jan 22

American Airlines
12:54 pmSTL
4h 31m
CLT · 1h 10m
6:25 pmDCA
American Airlines
8:03 pmDCA
2h 35m
Nonstop
9:38 pmSTL

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)
2027-01-21 → 2027-01-22Southwest AirlinesWN1614 / WN754$270.762026-10-29T01:28:26Z
2027-01-21 → 2027-01-22American AirlinesAA2153 / AA4664$304.002026-10-29T01:28:26Z
2027-01-21 → 2027-01-22United AirlinesUA1344 + UA4172 / UA1793 + UA3556$289.762026-10-29T01:28:26Z
2027-01-21 → 2027-01-22Delta Air LinesDL2868 + DL1454 / DL1558 + DL1371$299.262026-10-29T01:28:26Z
2027-01-21 → 2027-01-22American AirlinesAA4769 / AA4664$304.002026-10-29T01:28:26Z
2027-01-21 → 2027-01-22Southwest AirlinesWN665 + WN473 / WN754$263.632026-10-29T01:28:26Z
2027-01-21 → 2027-01-22Southwest AirlinesWN3091 + WN2357 / WN754$263.632026-10-29T01:28:26Z
2027-01-21 → 2027-01-22American AirlinesAA3198 + AA523 / AA4664$292.132026-10-29T01:28:26Z
2027-01-21 → 2027-01-22American AirlinesAA2486 + AA612 / AA4664$292.132026-10-29T01:28:26Z

2027-01-21 → 2027-01-22 · $270.76

  • Southwest Airlines WN1614: STL 2027-01-21 08:40:00 → DCA 2027-01-21 11:35:00; nonstop; 115 minutes. Local airport times.
  • Southwest Airlines WN754: DCA 2027-01-22 14:40:00 → STL 2027-01-22 16:05:00; nonstop; 145 minutes. Local airport times.

2027-01-21 → 2027-01-22 · $304.00

  • American Airlines AA2153: STL 2027-01-21 06:00:00 → DCA 2027-01-21 09:03:00; nonstop; 123 minutes. Local airport times.
  • American Airlines AA4664: DCA 2027-01-22 20:03:00 → STL 2027-01-22 21:38:00; nonstop; 155 minutes. Local airport times.

2027-01-21 → 2027-01-22 · $289.76

  • United Airlines UA1344 / UA4172: STL 2027-01-21 06:00:00 → DCA 2027-01-21 12:29:00; 1 stop(s) via EWR; 329 minutes. Local airport times.
    • UA1344: STL 2027-01-21 06:00:00 → EWR 2027-01-21 09:21:00; layover at EWR: 99 minutes.
    • UA4172: EWR 2027-01-21 11:00:00 → DCA 2027-01-21 12:29:00.
  • United Airlines UA1793 / UA3556: DCA 2027-01-22 06:30:00 → STL 2027-01-22 10:42:00; 1 stop(s) via ORD; 312 minutes. Local airport times.
    • UA1793: DCA 2027-01-22 06:30:00 → ORD 2027-01-22 07:52:00; layover at ORD: 68 minutes.
    • UA3556: ORD 2027-01-22 09:00:00 → STL 2027-01-22 10:42:00.

2027-01-21 → 2027-01-22 · $299.26

  • Delta Air Lines DL2868 / DL1454: STL 2027-01-21 10:14:00 → DCA 2027-01-21 16:38:00; 1 stop(s) via DTW; 324 minutes. Local airport times.
    • DL2868: STL 2027-01-21 10:14:00 → DTW 2027-01-21 12:46:00; layover at DTW: 140 minutes.
    • DL1454: DTW 2027-01-21 15:06:00 → DCA 2027-01-21 16:38:00.
  • Delta Air Lines DL1558 / DL1371: DCA 2027-01-22 09:45:00 → STL 2027-01-22 13:30:00; 1 stop(s) via DTW; 285 minutes. Local airport times.
    • DL1558: DCA 2027-01-22 09:45:00 → DTW 2027-01-22 11:22:00; layover at DTW: 81 minutes.
    • DL1371: DTW 2027-01-22 12:43:00 → STL 2027-01-22 13:30:00.

2027-01-21 → 2027-01-22 · $304.00

  • American Airlines AA4769: STL 2027-01-21 15:40:00 → DCA 2027-01-21 18:46:00; nonstop; 126 minutes. Local airport times.
  • American Airlines AA4664: DCA 2027-01-22 20:03:00 → STL 2027-01-22 21:38:00; nonstop; 155 minutes. Local airport times.

2027-01-21 → 2027-01-22 · $263.63

  • Southwest Airlines WN665 / WN473: STL 2027-01-21 10:35:00 → DCA 2027-01-21 15:20:00; 1 stop(s) via BNA; 225 minutes. Local airport times.
    • WN665: STL 2027-01-21 10:35:00 → BNA 2027-01-21 11:40:00; layover at BNA: 60 minutes.
    • WN473: BNA 2027-01-21 12:40:00 → DCA 2027-01-21 15:20:00.
  • Southwest Airlines WN754: DCA 2027-01-22 14:40:00 → STL 2027-01-22 16:05:00; nonstop; 145 minutes. Local airport times.

2027-01-21 → 2027-01-22 · $263.63

  • Southwest Airlines WN3091 / WN2357: STL 2027-01-21 16:30:00 → DCA 2027-01-21 21:55:00; 1 stop(s) via ATL; 265 minutes. Local airport times.
    • WN3091: STL 2027-01-21 16:30:00 → ATL 2027-01-21 19:00:00; layover at ATL: 70 minutes.
    • WN2357: ATL 2027-01-21 20:10:00 → DCA 2027-01-21 21:55:00.
  • Southwest Airlines WN754: DCA 2027-01-22 14:40:00 → STL 2027-01-22 16:05:00; nonstop; 145 minutes. Local airport times.

2027-01-21 → 2027-01-22 · $292.13

  • American Airlines AA3198 / AA523: STL 2027-01-21 11:37:00 → DCA 2027-01-21 17:59:00; 1 stop(s) via ORD; 322 minutes. Local airport times.
    • AA3198: STL 2027-01-21 11:37:00 → ORD 2027-01-21 12:59:00; layover at ORD: 117 minutes.
    • AA523: ORD 2027-01-21 14:56:00 → DCA 2027-01-21 17:59:00.
  • American Airlines AA4664: DCA 2027-01-22 20:03:00 → STL 2027-01-22 21:38:00; nonstop; 155 minutes. Local airport times.

2027-01-21 → 2027-01-22 · $292.13

  • American Airlines AA2486 / AA612: STL 2027-01-21 12:54:00 → DCA 2027-01-21 18:25:00; 1 stop(s) via CLT; 271 minutes. Local airport times.
    • AA2486: STL 2027-01-21 12:54:00 → CLT 2027-01-21 15:42:00; layover at CLT: 70 minutes.
    • AA612: CLT 2027-01-21 16:52:00 → DCA 2027-01-21 18:25:00.
  • American Airlines AA4664: DCA 2027-01-22 20:03:00 → STL 2027-01-22 21:38:00; nonstop; 155 minutes. Local airport times.

More dates for this route