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Austin → Saint Louis

Dec 21, 2026 · one way

AUS → STL1 adulteconomyOne way

8 flight options · 3 airlines

Nonstop flights

Mon, Dec 21 · One way

Southwest Airlines
3:15 pmAUS
2h 5m
Nonstop
5:20 pmSTL

One-way total · 1 adult · Taxes included

Mon, Dec 21 · One way

Southwest Airlines
7:35 amAUS
2h
Nonstop
9:35 amSTL

One-way total · 1 adult · Taxes included

One-stop flights

Mon, Dec 21 · One way

American Airlines
3:00 pmAUS
4h 36m
DFW · 1h 40m
7:36 pmSTL

One-way total · 1 adult · Taxes included

Mon, Dec 21 · One way

United Airlines
5:15 amAUS
4h 34m
IAH · 1h 12m
9:49 amSTL

One-way total · 1 adult · Taxes included

Mon, Dec 21 · One way

Southwest Airlines
1:40 pmAUS
5h 30m
MCI · 2h 35m
7:10 pmSTL

One-way total · 1 adult · Taxes included

Mon, Dec 21 · One way

Southwest Airlines
4:25 pmAUS
4h 50m
DAL · 2h 10m
9:15 pmSTL

One-way total · 1 adult · Taxes included

Mon, Dec 21 · One way

Southwest Airlines
4:25 pmAUS
4h 20m
BNA · 1h
8:45 pmSTL

One-way total · 1 adult · Taxes included

Mon, Dec 21 · One way

United Airlines
6:34 amAUS
5h 48m
ORD · 1h 31m
12:22 pmSTL

One-way total · 1 adult · Taxes included

Make this trip yours

AUS ⇄ STL

Economy

Adults 12+ · Children 2–11. For infants under 2, tell Axel after you see prices.

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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)
2026-12-21 · one waySouthwest AirlinesWN438$188.502026-10-29T00:47:17Z
2026-12-21 · one wayAmerican AirlinesAA3885 + AA2246$201.502026-10-29T00:47:17Z
2026-12-21 · one wayUnited AirlinesUA1966 + UA4556$214.502026-10-29T00:47:17Z
2026-12-21 · one waySouthwest AirlinesWN436$188.502026-10-29T00:47:17Z
2026-12-21 · one waySouthwest AirlinesWN4889 + WN2715$175.502026-10-29T00:47:17Z
2026-12-21 · one waySouthwest AirlinesWN2360 + WN1498$175.502026-10-29T00:47:17Z
2026-12-21 · one waySouthwest AirlinesWN2737 + WN742$175.502026-10-29T00:47:17Z
2026-12-21 · one wayUnited AirlinesUA1878 + UA1857$214.502026-10-29T00:47:17Z

2026-12-21 · one way · $188.50

  • Southwest Airlines WN438: AUS 2026-12-21 15:15:00 → STL 2026-12-21 17:20:00; nonstop; 125 minutes. Local airport times.

2026-12-21 · one way · $201.50

  • American Airlines AA3885 / AA2246: AUS 2026-12-21 15:00:00 → STL 2026-12-21 19:36:00; 1 stop(s) via DFW; 276 minutes. Local airport times.
    • AA3885: AUS 2026-12-21 15:00:00 → DFW 2026-12-21 16:15:00; layover at DFW: 100 minutes.
    • AA2246: DFW 2026-12-21 17:55:00 → STL 2026-12-21 19:36:00.

2026-12-21 · one way · $214.50

  • United Airlines UA1966 / UA4556: AUS 2026-12-21 05:15:00 → STL 2026-12-21 09:49:00; 1 stop(s) via IAH; 274 minutes. Local airport times.
    • UA1966: AUS 2026-12-21 05:15:00 → IAH 2026-12-21 06:28:00; layover at IAH: 72 minutes.
    • UA4556: IAH 2026-12-21 07:40:00 → STL 2026-12-21 09:49:00.

2026-12-21 · one way · $188.50

  • Southwest Airlines WN436: AUS 2026-12-21 07:35:00 → STL 2026-12-21 09:35:00; nonstop; 120 minutes. Local airport times.

2026-12-21 · one way · $175.50

  • Southwest Airlines WN4889 / WN2715: AUS 2026-12-21 13:40:00 → STL 2026-12-21 19:10:00; 1 stop(s) via MCI; 330 minutes. Local airport times.
    • WN4889: AUS 2026-12-21 13:40:00 → MCI 2026-12-21 15:30:00; layover at MCI: 155 minutes.
    • WN2715: MCI 2026-12-21 18:05:00 → STL 2026-12-21 19:10:00.

2026-12-21 · one way · $175.50

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

2026-12-21 · one way · $175.50

  • Southwest Airlines WN2737 / WN742: AUS 2026-12-21 16:25:00 → STL 2026-12-21 20:45:00; 1 stop(s) via BNA; 260 minutes. Local airport times.
    • WN2737: AUS 2026-12-21 16:25:00 → BNA 2026-12-21 18:30:00; layover at BNA: 60 minutes.
    • WN742: BNA 2026-12-21 19:30:00 → STL 2026-12-21 20:45:00.

2026-12-21 · one way · $214.50

  • United Airlines UA1878 / UA1857: AUS 2026-12-21 06:34:00 → STL 2026-12-21 12:22:00; 1 stop(s) via ORD; 348 minutes. Local airport times.
    • UA1878: AUS 2026-12-21 06:34:00 → ORD 2026-12-21 09:21:00; layover at ORD: 91 minutes.
    • UA1857: ORD 2026-12-21 10:52:00 → STL 2026-12-21 12:22:00.

More dates for this route