Travel with Axel,
get the best price.

Saint Louis → Washington

Dec 22, 2026 · return Jan 5, 2027

STL → DCA1 adulteconomyRound trip

9 flight options · 4 airlines

Nonstop flights

Tue, Dec 22 – Tue, Jan 5

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 – Tue, Jan 5

American Airlines
7:00 amSTL
2h 8m
Nonstop
10:08 amDCA
American Airlines
8:03 pmDCA
2h 35m
Nonstop
9:38 pmSTL

Round-trip total · 1 adult · Taxes included

Tue, Dec 22 – Tue, Jan 5

American Airlines
3:51 pmSTL
2h 3m
Nonstop
6:54 pmDCA
American Airlines
8:03 pmDCA
2h 35m
Nonstop
9:38 pmSTL

Round-trip total · 1 adult · Taxes included

One-stop flights

Tue, Dec 22 – Tue, Jan 5

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 – Tue, Jan 5

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

Tue, Dec 22 – Tue, Jan 5

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 – Tue, Jan 5

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 – Tue, Jan 5

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

Tue, Dec 22 – Tue, Jan 5

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.

No account needed to see prices.

Already have an account? Log in

Why book with Axel
  • A real airline bookingThe booking is in the airline’s own system under your name. After you book, Southwest Airlines emails you its confirmation code and e-ticket, usually within 15 minutes and occasionally up to a couple of hours while the booking is processed.
  • Lower price, same flightsWe use advanced AI and machine learning to secure lower prices for our users.
  • Not satisfied? Full refund.If you are unhappy with the experience for any reason, or simply change your mind, cancel within 24 hours of booking (departure 7+ days away) and we refund you in full. We stand by our product. Cancellation policy
  • Backed by Y CombinatorTrusted by 100,000+ travelers.

Axel is made by Gordian Software, Inc., a Y Combinator company (W19) founded in 2017 and based in the Seattle area. The company is led by CEO Stephen Grabowski, formerly of Skyscanner. How Axel works · About

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 → 2027-01-05Southwest AirlinesWN1614 / WN754$313.512026-10-29T01:28:26Z
2026-12-22 → 2027-01-05American AirlinesAA4703 / AA4664$352.002026-10-29T01:28:26Z
2026-12-22 → 2027-01-05United AirlinesUA1344 + UA4172 / UA1793 + UA3556$335.512026-10-29T01:28:26Z
2026-12-22 → 2027-01-05Delta Air LinesDL2868 + DL1454 / DL1558 + DL1371$346.512026-10-29T01:28:26Z
2026-12-22 → 2027-01-05American AirlinesAA4769 / AA4664$352.002026-10-29T01:28:26Z
2026-12-22 → 2027-01-05Southwest AirlinesWN3091 + WN2357 / WN754$304.132026-10-29T01:28:26Z
2026-12-22 → 2027-01-05Southwest AirlinesWN665 + WN473 / WN754$304.132026-10-29T01:28:26Z
2026-12-22 → 2027-01-05American AirlinesAA3198 + AA523 / AA4664$336.382026-10-29T01:28:26Z
2026-12-22 → 2027-01-05American AirlinesAA2486 + AA612 / AA4664$336.382026-10-29T01:28:26Z

2026-12-22 → 2027-01-05 · $313.51

  • 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 2027-01-05 14:40:00 → STL 2027-01-05 16:05:00; nonstop; 145 minutes. Local airport times.

2026-12-22 → 2027-01-05 · $352.00

  • 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 AA4664: DCA 2027-01-05 20:03:00 → STL 2027-01-05 21:38:00; nonstop; 155 minutes. Local airport times.

2026-12-22 → 2027-01-05 · $335.51

  • 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 2027-01-05 06:30:00 → STL 2027-01-05 10:42:00; 1 stop(s) via ORD; 312 minutes. Local airport times.
    • UA1793: DCA 2027-01-05 06:30:00 → ORD 2027-01-05 07:52:00; layover at ORD: 68 minutes.
    • UA3556: ORD 2027-01-05 09:00:00 → STL 2027-01-05 10:42:00.

2026-12-22 → 2027-01-05 · $346.51

  • Delta Air Lines DL2868 / DL1454: STL 2026-12-22 10:14:00 → DCA 2026-12-22 16:38:00; 1 stop(s) via DTW; 324 minutes. Local airport times.
    • DL2868: STL 2026-12-22 10:14:00 → DTW 2026-12-22 12:46:00; layover at DTW: 140 minutes.
    • DL1454: DTW 2026-12-22 15:06:00 → DCA 2026-12-22 16:38:00.
  • Delta Air Lines DL1558 / DL1371: DCA 2027-01-05 09:45:00 → STL 2027-01-05 13:30:00; 1 stop(s) via DTW; 285 minutes. Local airport times.
    • DL1558: DCA 2027-01-05 09:45:00 → DTW 2027-01-05 11:22:00; layover at DTW: 81 minutes.
    • DL1371: DTW 2027-01-05 12:43:00 → STL 2027-01-05 13:30:00.

2026-12-22 → 2027-01-05 · $352.00

  • 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 AA4664: DCA 2027-01-05 20:03:00 → STL 2027-01-05 21:38:00; nonstop; 155 minutes. Local airport times.

2026-12-22 → 2027-01-05 · $304.13

  • 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 2027-01-05 14:40:00 → STL 2027-01-05 16:05:00; nonstop; 145 minutes. Local airport times.

2026-12-22 → 2027-01-05 · $304.13

  • 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 2027-01-05 14:40:00 → STL 2027-01-05 16:05:00; nonstop; 145 minutes. Local airport times.

2026-12-22 → 2027-01-05 · $336.38

  • 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 AA4664: DCA 2027-01-05 20:03:00 → STL 2027-01-05 21:38:00; nonstop; 155 minutes. Local airport times.

2026-12-22 → 2027-01-05 · $336.38

  • 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 AA4664: DCA 2027-01-05 20:03:00 → STL 2027-01-05 21:38:00; nonstop; 155 minutes. Local airport times.

More dates for this route