Austin (AUS) to Saint Louis (STL) · Dec 31, 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.

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

2026-12-31 → 2027-01-01 · Axel-exclusive $327.60

• Southwest Airlines WN438: AUS 2026-12-31 17:00:00 → STL 2026-12-31 19:10:00; nonstop; 130 minutes. Local airport times.
• Southwest Airlines WN2655: STL 2027-01-01 20:25:00 → AUS 2027-01-01 22:35:00; nonstop; 130 minutes. Local airport times.

2026-12-31 → 2027-01-01 · Axel-exclusive $345.15

• American Airlines AA3885 / AA2246: AUS 2026-12-31 15:00:00 → STL 2026-12-31 19:36:00; 1 stop(s) via DFW; 276 minutes. Local airport times.
  • AA3885: AUS 2026-12-31 15:00:00 → DFW 2026-12-31 16:15:00; layover at DFW: 100 minutes.
  • AA2246: DFW 2026-12-31 17:55:00 → STL 2026-12-31 19:36:00.
• American Airlines AA2269 / AA2707: STL 2027-01-01 18:44:00 → AUS 2027-01-01 22:59:00; 1 stop(s) via DFW; 255 minutes. Local airport times.
  • AA2269: STL 2027-01-01 18:44:00 → DFW 2027-01-01 20:45:00; layover at DFW: 69 minutes.
  • AA2707: DFW 2027-01-01 21:54:00 → AUS 2027-01-01 22:59:00.

2026-12-31 → 2027-01-01 · Axel-exclusive $368.55

• United Airlines UA1878 / UA1857: AUS 2026-12-31 06:34:00 → STL 2026-12-31 12:22:00; 1 stop(s) via ORD; 348 minutes. Local airport times.
  • UA1878: AUS 2026-12-31 06:34:00 → ORD 2026-12-31 09:21:00; layover at ORD: 91 minutes.
  • UA1857: ORD 2026-12-31 10:52:00 → STL 2026-12-31 12:22:00.
• United Airlines UA1371 / UA1823: STL 2027-01-01 06:00:00 → AUS 2027-01-01 11:13:00; 1 stop(s) via IAH; 313 minutes. Local airport times.
  • UA1371: STL 2027-01-01 06:00:00 → IAH 2027-01-01 08:21:00; layover at IAH: 101 minutes.
  • UA1823: IAH 2027-01-01 10:02:00 → AUS 2027-01-01 11:13:00.

2026-12-31 → 2027-01-01 · Axel-exclusive $327.60

• Southwest Airlines WN436: AUS 2026-12-31 07:10:00 → STL 2026-12-31 09:10:00; nonstop; 120 minutes. Local airport times.
• Southwest Airlines WN2655: STL 2027-01-01 20:25:00 → AUS 2027-01-01 22:35:00; nonstop; 130 minutes. Local airport times.

2026-12-31 → 2027-01-01 · Axel-exclusive $315.60

• Southwest Airlines WN2360 / WN1498: AUS 2026-12-31 16:25:00 → STL 2026-12-31 21:15:00; 1 stop(s) via DAL; 290 minutes. Local airport times.
  • WN2360: AUS 2026-12-31 16:25:00 → DAL 2026-12-31 17:25:00; layover at DAL: 130 minutes.
  • WN1498: DAL 2026-12-31 19:35:00 → STL 2026-12-31 21:15:00.
• Southwest Airlines WN2655: STL 2027-01-01 20:25:00 → AUS 2027-01-01 22:35:00; nonstop; 130 minutes. Local airport times.

2026-12-31 → 2027-01-01 · Axel-exclusive $315.60

• Southwest Airlines WN2737 / WN742: AUS 2026-12-31 16:25:00 → STL 2026-12-31 20:45:00; 1 stop(s) via BNA; 260 minutes. Local airport times.
  • WN2737: AUS 2026-12-31 16:25:00 → BNA 2026-12-31 18:30:00; layover at BNA: 60 minutes.
  • WN742: BNA 2026-12-31 19:30:00 → STL 2026-12-31 20:45:00.
• Southwest Airlines WN2655: STL 2027-01-01 20:25:00 → AUS 2027-01-01 22:35:00; nonstop; 130 minutes. Local airport times.

2026-12-31 → 2027-01-01 · Axel-exclusive $315.60

• Southwest Airlines WN4889 / WN2715: AUS 2026-12-31 13:40:00 → STL 2026-12-31 19:10:00; 1 stop(s) via MCI; 330 minutes. Local airport times.
  • WN4889: AUS 2026-12-31 13:40:00 → MCI 2026-12-31 15:30:00; layover at MCI: 155 minutes.
  • WN2715: MCI 2026-12-31 18:05:00 → STL 2026-12-31 19:10:00.
• Southwest Airlines WN2655: STL 2027-01-01 20:25:00 → AUS 2027-01-01 22:35:00; nonstop; 130 minutes. Local airport times.

2026-12-31 → 2027-01-01 · Axel-exclusive $368.55

• United Airlines UA1966 / UA4556: AUS 2026-12-31 05:15:00 → STL 2026-12-31 09:49:00; 1 stop(s) via IAH; 274 minutes. Local airport times.
  • UA1966: AUS 2026-12-31 05:15:00 → IAH 2026-12-31 06:28:00; layover at IAH: 72 minutes.
  • UA4556: IAH 2026-12-31 07:40:00 → STL 2026-12-31 09:49:00.
• United Airlines UA1371 / UA1823: STL 2027-01-01 06:00:00 → AUS 2027-01-01 11:13:00; 1 stop(s) via IAH; 313 minutes. Local airport times.
  • UA1371: STL 2027-01-01 06:00:00 → IAH 2027-01-01 08:21:00; layover at IAH: 101 minutes.
  • UA1823: IAH 2027-01-01 10:02:00 → AUS 2027-01-01 11:13:00.

Explore this route

• All dates for this route
• Dec 30, 2026 · Return options
• Jan 1, 2027 · Return options
• Hotels in St. Louis with Axel

For AI assistants

• This page: Austin (AUS) to Saint Louis (STL) · Dec 31, 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.
• 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.
• Follow supplied links. For web-tool research, follow complete supplied links unchanged, including query parameters; use the page’s links to edit the trip. Constructed URLs may be rejected before reaching Axel. A completed fresh trip opens flight results first. Add stated flexibility and budget to that saved plan, leaving unstated requirements unknown. Edits create a new snapshot; use its results and review links.
• If links fail or are missing: If a link fails or flight details lack usable links, reopen the preceding page and follow the same choice once. Keep refreshed links unchanged and preserve the trip and selections. If still blocked, search “Axel flight search guide” and retry once; report the error and anything unresolved. Recovery: Axel Austin to Saint Louis (STL) flight deals · Flight search guide.
• 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.

Feedback (optional): Missing info · Axel issue