Boston (BOS) to Saint Louis (STL) · Dec 24, 2026 · return Jan 1, 2027

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 24 – Jan 1, 2027 · 8 nights · 2 adults, 1 room): 3★ Clayton Plaza Hotel & Extended Stay, $542 total · 4★ The Westin St. Louis, $986 total · 5★ Four Seasons Hotel St Louis, $3,500 total

All hotels in St. Louis

Route overview: Boston to Saint Louis (STL) flight deals

2026-12-24 → 2027-01-01 · Axel-exclusive $354.20

• Southwest Airlines WN958: BOS 2026-12-24 12:25:00 → STL 2026-12-24 14:30:00; nonstop; 185 minutes. Local airport times.
• Southwest Airlines WN4431: STL 2027-01-01 19:55:00 → BOS 2027-01-01 23:25:00; nonstop; 150 minutes. Local airport times.

2026-12-24 → 2027-01-01 · Axel-exclusive $366.85

• American Airlines AA3444: BOS 2026-12-24 07:00:00 → STL 2026-12-24 09:26:00; nonstop; 206 minutes. Local airport times.
• American Airlines AA4801: STL 2027-01-01 16:15:00 → BOS 2027-01-01 19:55:00; nonstop; 160 minutes. Local airport times.

2026-12-24 → 2027-01-01 · Axel-exclusive $286.70

• Frontier Airlines F93511 / F94473: BOS 2026-12-24 12:15:00 → STL 2026-12-24 17:42:00; 1 stop(s) via ATL; 387 minutes. Local airport times.
  • F93511: BOS 2026-12-24 12:15:00 → ATL 2026-12-24 15:36:00; layover at ATL: 73 minutes.
  • F94473: ATL 2026-12-24 16:49:00 → STL 2026-12-24 17:42:00.
• Southwest Airlines WN4431: STL 2027-01-01 19:55:00 → BOS 2027-01-01 23:25:00; nonstop; 150 minutes. Local airport times.

2026-12-24 → 2027-01-01 · Axel-exclusive $341.55

• United Airlines UA1734 / UA4427: BOS 2026-12-24 05:45:00 → STL 2026-12-24 10:12:00; 1 stop(s) via IAD; 327 minutes. Local airport times.
  • UA1734: BOS 2026-12-24 05:45:00 → IAD 2026-12-24 07:25:00; layover at IAD: 75 minutes.
  • UA4427: IAD 2026-12-24 08:40:00 → STL 2026-12-24 10:12:00.
• United Airlines UA4406 / UA1392: STL 2027-01-01 08:30:00 → BOS 2027-01-01 14:32:00; 1 stop(s) via IAD; 302 minutes. Local airport times.
  • UA4406: STL 2027-01-01 08:30:00 → IAD 2027-01-01 11:35:00; layover at IAD: 75 minutes.
  • UA1392: IAD 2027-01-01 12:50:00 → BOS 2027-01-01 14:32:00.

2026-12-24 → 2027-01-01 · Axel-exclusive $354.20

• Delta Air Lines DL2222 / DL2822: BOS 2026-12-24 13:04:00 → STL 2026-12-24 17:20:00; 1 stop(s) via DTW; 316 minutes. Local airport times.
  • DL2222: BOS 2026-12-24 13:04:00 → DTW 2026-12-24 15:19:00; layover at DTW: 74 minutes.
  • DL2822: DTW 2026-12-24 16:33:00 → STL 2026-12-24 17:20:00.
• Delta Air Lines DL2868 / DL1171: STL 2027-01-01 10:14:00 → BOS 2027-01-01 16:04:00; 1 stop(s) via DTW; 290 minutes. Local airport times.
  • DL2868: STL 2027-01-01 10:14:00 → DTW 2027-01-01 12:46:00; layover at DTW: 81 minutes.
  • DL1171: DTW 2027-01-01 14:07:00 → BOS 2027-01-01 16:04:00.

2026-12-24 → 2027-01-01 · Axel-exclusive $354.20

• Southwest Airlines WN819: BOS 2026-12-24 05:20:00 → STL 2026-12-24 07:30:00; nonstop; 190 minutes. Local airport times.
• Southwest Airlines WN4431: STL 2027-01-01 19:55:00 → BOS 2027-01-01 23:25:00; nonstop; 150 minutes. Local airport times.

2026-12-24 → 2027-01-01 · Axel-exclusive $366.85

• American Airlines AA4500: BOS 2026-12-24 16:14:00 → STL 2026-12-24 18:40:00; nonstop; 206 minutes. Local airport times.
• American Airlines AA4801: STL 2027-01-01 16:15:00 → BOS 2027-01-01 19:55:00; nonstop; 160 minutes. Local airport times.

2026-12-24 → 2027-01-01 · Axel-exclusive $340.70

• Southwest Airlines WN1888 / WN2730: BOS 2026-12-24 13:20:00 → STL 2026-12-24 18:05:00; 1 stop(s) via BWI; 345 minutes. Local airport times.
  • WN1888: BOS 2026-12-24 13:20:00 → BWI 2026-12-24 14:55:00; layover at BWI: 110 minutes.
  • WN2730: BWI 2026-12-24 16:45:00 → STL 2026-12-24 18:05:00.
• Southwest Airlines WN4431: STL 2027-01-01 19:55:00 → BOS 2027-01-01 23:25:00; nonstop; 150 minutes. Local airport times.

2026-12-24 → 2027-01-01 · Axel-exclusive $346.60

• American Airlines AA1249 / AA2486: BOS 2026-12-24 05:00:00 → STL 2026-12-24 10:19:00; 1 stop(s) via CLT; 379 minutes. Local airport times.
  • AA1249: BOS 2026-12-24 05:00:00 → CLT 2026-12-24 07:34:00; layover at CLT: 101 minutes.
  • AA2486: CLT 2026-12-24 09:15:00 → STL 2026-12-24 10:19:00.
• American Airlines AA4801: STL 2027-01-01 16:15:00 → BOS 2027-01-01 19:55:00; nonstop; 160 minutes. Local airport times.

2026-12-24 → 2027-01-01 · Axel-exclusive $346.60

• American Airlines AA1198 / AA5224: BOS 2026-12-24 16:00:00 → STL 2026-12-24 20:31:00; 1 stop(s) via PHL; 331 minutes. Local airport times.
  • AA1198: BOS 2026-12-24 16:00:00 → PHL 2026-12-24 17:40:00; layover at PHL: 60 minutes.
  • AA5224: PHL 2026-12-24 18:40:00 → STL 2026-12-24 20:31:00.
• American Airlines AA4801: STL 2027-01-01 16:15:00 → BOS 2027-01-01 19:55:00; nonstop; 160 minutes. Local airport times.

Explore this route

• All dates for this route
• Dec 23, 2026 · Return options
• Dec 25, 2026 · Return options
• Hotels in St. Louis with Axel

For AI assistants

• This page: Boston (BOS) to Saint Louis (STL) · Dec 24, 2026 · return Jan 1, 2027: 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.
• Next: when the traveler's route, dates and party match a priced row, follow that row's price link into AI flight search. Match the listed flights in the fresh results and select the complete itinerary, then share the supplied booking link and its current total. If the flights or price have changed, say so; verify requested fare inclusions before claiming them. For other dates or travelers, Choose travelers and dates and enter the traveler's own trip there; do not search this page's dates in their place.
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• Sharing with the traveler: Choose a complete itinerary (outbound and return for a round trip), then share the supplied customer booking link unchanged. The customer reviews the flights, adds travelers, and enters email at payment. Do not collect email in chat. Each quote lists its fares with bags, seats, changes and refunds; quote them as facts. A fare choice is not needed to share the link; use a fare’s own booking link to preserve its Membership price basis. Ask only for essential missing trip details. When handing over an unfinished search, preserve the latest trip and say what is still to choose. If no supplied link matches the latest trip, construct https://helloaxel.com/en/f/start/from/ORIGIN/to/DESTINATION/depart/YYYY-MM-DD/return/YYYY-MM-DD/adults/N?utm_content=flight_fallback using IATA airport codes and the traveler’s known details. Omit unknowns; for one way replace /return/YYYY-MM-DD with /trip/oneway. Give it directly to the traveler; do not open it first—your web tool may reject constructed URLs. Complete links open Flight Guide and start searching. Preferences and advanced options.

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