Dulles (IAD) to Saint Louis (STL) · Dec 14, 2026 · return Dec 21, 2026

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

See flights for these dates: each price link opens AI flight search for that row's exact dates and travelers. Select the complete itinerary there.

Hotels in St. Louis for these trips

Hotels: under a trip, hotels in St. Louis for exactly those nights: the lowest 3★, 4★, 5★ stay totals among the city's featured hotels, Axel's price for 2 adults in 1 room, each opening that hotel's page for those dates with the rooms and the booking link.

• Hotels in St. Louis for these nights (Dec 14–21, 2026 · 7 nights · 2 adults, 1 room): 3★ Clayton Plaza Hotel & Extended Stay, $473 total · 4★ Hilton St. Louis at the Ballpark, $720 total · 5★ Four Seasons Hotel St Louis, $2,655 total

All hotels in St. Louis

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

2026-12-14 → 2026-12-21 · Axel-exclusive $391.00

• United Airlines UA4527: IAD 2026-12-14 17:55:00 → STL 2026-12-14 19:30:00; nonstop; 155 minutes. Local airport times.
• United Airlines UA3495: STL 2026-12-21 13:25:00 → IAD 2026-12-21 16:35:00; nonstop; 130 minutes. Local airport times.

2026-12-14 → 2026-12-21 · Axel-exclusive $356.50

• American Airlines AA5649 / AA2486: IAD 2026-12-14 06:00:00 → STL 2026-12-14 10:19:00; 1 stop(s) via CLT; 319 minutes. Local airport times.
  • AA5649: IAD 2026-12-14 06:00:00 → CLT 2026-12-14 07:48:00; layover at CLT: 87 minutes.
  • AA2486: CLT 2026-12-14 09:15:00 → STL 2026-12-14 10:19:00.
• American Airlines AA2486 / AA5317: STL 2026-12-21 12:54:00 → IAD 2026-12-21 19:33:00; 1 stop(s) via CLT; 339 minutes. Local airport times.
  • AA2486: STL 2026-12-21 12:54:00 → CLT 2026-12-21 15:42:00; layover at CLT: 135 minutes.
  • AA5317: CLT 2026-12-21 17:57:00 → IAD 2026-12-21 19:33:00.

2026-12-14 → 2026-12-21 · Axel-exclusive $379.50

• Delta Air Lines DL1444 / DL1393: IAD 2026-12-14 12:34:00 → STL 2026-12-14 18:01:00; 1 stop(s) via ATL; 387 minutes. Local airport times.
  • DL1444: IAD 2026-12-14 12:34:00 → ATL 2026-12-14 14:31:00; layover at ATL: 169 minutes.
  • DL1393: ATL 2026-12-14 17:20:00 → STL 2026-12-14 18:01:00.
• Delta Air Lines DL2868 / DL5413: STL 2026-12-21 10:14:00 → IAD 2026-12-21 16:18:00; 1 stop(s) via DTW; 304 minutes. Local airport times.
  • DL2868: STL 2026-12-21 10:14:00 → DTW 2026-12-21 12:46:00; layover at DTW: 119 minutes.
  • DL5413: DTW 2026-12-21 14:45:00 → IAD 2026-12-21 16:18:00.

2026-12-14 → 2026-12-21 · Axel-exclusive $491.00

• Air Canada AC8615 / AC8889: IAD 2026-12-14 09:55:00 → STL 2026-12-14 15:26:00; 1 stop(s) via YYZ; 391 minutes. Local airport times.
  • AC8615: IAD 2026-12-14 09:55:00 → YYZ 2026-12-14 11:22:00; layover at YYZ: 168 minutes.
  • AC8889: YYZ 2026-12-14 14:10:00 → STL 2026-12-14 15:26:00.
• United Airlines UA3495: STL 2026-12-21 13:25:00 → IAD 2026-12-21 16:35:00; nonstop; 130 minutes. Local airport times.

2026-12-14 → 2026-12-21 · Axel-exclusive $391.00

• United Airlines UA4527: IAD 2026-12-14 18:00:00 → STL 2026-12-14 19:35:00; nonstop; 155 minutes. Local airport times.
• United Airlines UA4454: STL 2026-12-21 13:17:00 → IAD 2026-12-21 16:22:00; nonstop; 125 minutes. Local airport times.

2026-12-14 → 2026-12-21 · Axel-exclusive $379.50

• Delta Air Lines DL5618 / DL4715: IAD 2026-12-14 12:35:00 → STL 2026-12-14 17:06:00; 1 stop(s) via JFK; 331 minutes. Local airport times.
  • DL5618: IAD 2026-12-14 12:35:00 → JFK 2026-12-14 14:01:00; layover at JFK: 69 minutes.
  • DL4715: JFK 2026-12-14 15:10:00 → STL 2026-12-14 17:06:00.
• Delta Air Lines DL2868 / DL5413: STL 2026-12-21 10:14:00 → IAD 2026-12-21 16:18:00; 1 stop(s) via DTW; 304 minutes. Local airport times.
  • DL2868: STL 2026-12-21 10:14:00 → DTW 2026-12-21 12:46:00; layover at DTW: 119 minutes.
  • DL5413: DTW 2026-12-21 14:45:00 → IAD 2026-12-21 16:18:00.

2026-12-14 → 2026-12-21 · Axel-exclusive $381.00

• United Airlines UA1359 / UA3571: IAD 2026-12-14 06:10:00 → STL 2026-12-14 11:04:00; 1 stop(s) via EWR; 354 minutes. Local airport times.
  • UA1359: IAD 2026-12-14 06:10:00 → EWR 2026-12-14 07:28:00; layover at EWR: 92 minutes.
  • UA3571: EWR 2026-12-14 09:00:00 → STL 2026-12-14 11:04:00.
• United Airlines UA3495: STL 2026-12-21 13:25:00 → IAD 2026-12-21 16:35:00; nonstop; 130 minutes. Local airport times.

2026-12-14 → 2026-12-21 · Axel-exclusive $381.00

• United Airlines UA1775 / UA2844: IAD 2026-12-14 08:23:00 → STL 2026-12-14 12:10:00; 1 stop(s) via ORD; 287 minutes. Local airport times.
  • UA1775: IAD 2026-12-14 08:23:00 → ORD 2026-12-14 09:45:00; layover at ORD: 60 minutes.
  • UA2844: ORD 2026-12-14 10:45:00 → STL 2026-12-14 12:10:00.
• United Airlines UA3495: STL 2026-12-21 13:25:00 → IAD 2026-12-21 16:35:00; nonstop; 130 minutes. Local airport times.

Explore this route

• All dates for this route
• Dec 13, 2026 · Return options
• Dec 15, 2026 · Return options
• Hotels in St. Louis with Axel

For AI assistants

• This page: Dulles (IAD) to Saint Louis (STL) · Dec 14, 2026 · return Dec 21, 2026: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued. Under a trip, hotels in St. Louis for exactly those nights: the lowest 3★, 4★ and 5★ stay totals for 2 adults in 1 room, each linking to that hotel's page for those dates.
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