Saint Louis (STL) to Austin (AUS) · Dec 28, 2026 · return Jan 11, 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: Saint Louis to Austin (AUS) flight deals

2026-12-28 → 2027-01-11 · Axel-exclusive $319.00

• Southwest Airlines WN4115: STL 2026-12-28 08:00:00 → AUS 2026-12-28 10:10:00; nonstop; 130 minutes. Local airport times.
• Southwest Airlines WN438: AUS 2027-01-11 15:15:00 → STL 2027-01-11 17:20:00; nonstop; 125 minutes. Local airport times.

2026-12-28 → 2027-01-11 · Axel-exclusive $374.00

• United Airlines UA1371 / UA1823: STL 2026-12-28 06:00:00 → AUS 2026-12-28 11:13:00; 1 stop(s) via IAH; 313 minutes. Local airport times.
  • UA1371: STL 2026-12-28 06:00:00 → IAH 2026-12-28 08:21:00; layover at IAH: 101 minutes.
  • UA1823: IAH 2026-12-28 10:02:00 → AUS 2026-12-28 11:13:00.
• United Airlines UA1878 / UA1857: AUS 2027-01-11 06:34:00 → STL 2027-01-11 12:22:00; 1 stop(s) via ORD; 348 minutes. Local airport times.
  • UA1878: AUS 2027-01-11 06:34:00 → ORD 2027-01-11 09:21:00; layover at ORD: 91 minutes.
  • UA1857: ORD 2027-01-11 10:52:00 → STL 2027-01-11 12:22:00.

2026-12-28 → 2027-01-11 · Axel-exclusive $319.00

• Southwest Airlines WN1429: STL 2026-12-28 22:05:00 → AUS 2026-12-29 00:10:00; nonstop; 125 minutes. Local airport times.
• Southwest Airlines WN438: AUS 2027-01-11 15:15:00 → STL 2027-01-11 17:20:00; nonstop; 125 minutes. Local airport times.

2026-12-28 → 2027-01-11 · Axel-exclusive $324.00

• Southwest Airlines WN1429: STL 2026-12-28 21:50:00 → AUS 2026-12-28 23:55:00; nonstop; 125 minutes. Local airport times.
• Southwest Airlines WN2737 / WN742: AUS 2027-01-11 16:25:00 → STL 2027-01-11 20:45:00; 1 stop(s) via BNA; 260 minutes. Local airport times.
  • WN2737: AUS 2027-01-11 16:25:00 → BNA 2027-01-11 18:30:00; layover at BNA: 60 minutes.
  • WN742: BNA 2027-01-11 19:30:00 → STL 2027-01-11 20:45:00.

2026-12-28 → 2027-01-11 · Axel-exclusive $325.00

• Southwest Airlines WN287 / WN2891: STL 2026-12-28 10:55:00 → AUS 2026-12-28 16:35:00; 1 stop(s) via MDW; 340 minutes. Local airport times.
  • WN287: STL 2026-12-28 10:55:00 → MDW 2026-12-28 12:05:00; layover at MDW: 110 minutes.
  • WN2891: MDW 2026-12-28 13:55:00 → AUS 2026-12-28 16:35:00.
• Southwest Airlines WN438: AUS 2027-01-11 15:15:00 → STL 2027-01-11 17:20:00; nonstop; 125 minutes. Local airport times.

2026-12-28 → 2027-01-11 · Axel-exclusive $325.00

• Southwest Airlines WN4132 / WN1656: STL 2026-12-28 19:10:00 → AUS 2026-12-28 23:25:00; 1 stop(s) via DAL; 255 minutes. Local airport times.
  • WN4132: STL 2026-12-28 19:10:00 → DAL 2026-12-28 20:50:00; layover at DAL: 85 minutes.
  • WN1656: DAL 2026-12-28 22:15:00 → AUS 2026-12-28 23:25:00.
• Southwest Airlines WN438: AUS 2027-01-11 15:15:00 → STL 2027-01-11 17:20:00; nonstop; 125 minutes. Local airport times.

2026-12-28 → 2027-01-11 · Axel-exclusive $325.00

• Southwest Airlines WN4164 / WN4831: STL 2026-12-28 08:00:00 → AUS 2026-12-28 12:40:00; 1 stop(s) via MCI; 280 minutes. Local airport times.
  • WN4164: STL 2026-12-28 08:00:00 → MCI 2026-12-28 09:10:00; layover at MCI: 90 minutes.
  • WN4831: MCI 2026-12-28 10:40:00 → AUS 2026-12-28 12:40:00.
• Southwest Airlines WN438: AUS 2027-01-11 15:15:00 → STL 2027-01-11 17:20:00; nonstop; 125 minutes. Local airport times.

2026-12-28 → 2027-01-11 · Axel-exclusive $325.00

• Southwest Airlines WN4149 / WN2392: STL 2026-12-28 05:05:00 → AUS 2026-12-28 10:40:00; 1 stop(s) via HOU; 335 minutes. Local airport times.
  • WN4149: STL 2026-12-28 05:05:00 → HOU 2026-12-28 07:10:00; layover at HOU: 155 minutes.
  • WN2392: HOU 2026-12-28 09:45:00 → AUS 2026-12-28 10:40:00.
• Southwest Airlines WN438: AUS 2027-01-11 15:15:00 → STL 2027-01-11 17:20:00; nonstop; 125 minutes. Local airport times.

Explore this route

• All dates for this route
• Dec 27, 2026 · Return options
• Dec 29, 2026 · Return options
• Hotels in Austin with Axel

For AI assistants

• This page: Saint Louis (STL) to Austin (AUS) · Dec 28, 2026 · return Jan 11, 2027: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued.
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