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Saint Louis → Austin

Dec 21, 2026 · one way

STL → AUS1 adulteconomyOne way

8 flight options · 3 airlines

Nonstop flights

Mon, Dec 21 · One way

Southwest Airlines
10:05 pmSTL
2h 5m
Nonstop
12:10 am+1AUS

One-way total · 1 adult · Taxes included

Mon, Dec 21 · One way

Southwest Airlines
2:45 pmSTL
2h 5m
Nonstop
4:50 pmAUS

One-way total · 1 adult · Taxes included

One-stop flights

Mon, Dec 21 · One way

American Airlines
6:44 pmSTL
4h 15m
DFW · 1h 9m
10:59 pmAUS

One-way total · 1 adult · Taxes included

Mon, Dec 21 · One way

United Airlines
6:00 amSTL
5h 13m
IAH · 1h 41m
11:13 amAUS

One-way total · 1 adult · Taxes included

Mon, Dec 21 · One way

Southwest Airlines
8:00 amSTL
4h 40m
MCI · 1h 30m
12:40 pmAUS

One-way total · 1 adult · Taxes included

Mon, Dec 21 · One way

Southwest Airlines
7:10 pmSTL
4h 15m
DAL · 1h 25m
11:25 pmAUS

One-way total · 1 adult · Taxes included

Mon, Dec 21 · One way

Southwest Airlines
10:55 amSTL
5h 40m
MDW · 1h 50m
4:35 pmAUS

One-way total · 1 adult · Taxes included

Mon, Dec 21 · One way

Southwest Airlines
5:05 amSTL
5h 35m
HOU · 2h 35m
10:40 amAUS

One-way total · 1 adult · Taxes included

Make this trip yours

STL ⇄ AUS

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 AirlinesWN1429$187.502026-10-29T01:28:14Z
2026-12-21 · one wayAmerican AirlinesAA2269 + AA2707$206.252026-10-29T01:28:14Z
2026-12-21 · one wayUnited AirlinesUA1371 + UA1823$218.752026-10-29T01:28:14Z
2026-12-21 · one waySouthwest AirlinesWN4913$187.502026-10-29T01:28:14Z
2026-12-21 · one waySouthwest AirlinesWN4164 + WN4831$193.752026-10-29T01:28:14Z
2026-12-21 · one waySouthwest AirlinesWN4132 + WN1656$193.752026-10-29T01:28:14Z
2026-12-21 · one waySouthwest AirlinesWN287 + WN2891$193.752026-10-29T01:28:14Z
2026-12-21 · one waySouthwest AirlinesWN4149 + WN2392$193.752026-10-29T01:28:14Z

2026-12-21 · one way · $187.50

  • Southwest Airlines WN1429: STL 2026-12-21 22:05:00 → AUS 2026-12-22 00:10:00; nonstop; 125 minutes. Local airport times.

2026-12-21 · one way · $206.25

  • American Airlines AA2269 / AA2707: STL 2026-12-21 18:44:00 → AUS 2026-12-21 22:59:00; 1 stop(s) via DFW; 255 minutes. Local airport times.
    • AA2269: STL 2026-12-21 18:44:00 → DFW 2026-12-21 20:45:00; layover at DFW: 69 minutes.
    • AA2707: DFW 2026-12-21 21:54:00 → AUS 2026-12-21 22:59:00.

2026-12-21 · one way · $218.75

  • United Airlines UA1371 / UA1823: STL 2026-12-21 06:00:00 → AUS 2026-12-21 11:13:00; 1 stop(s) via IAH; 313 minutes. Local airport times.
    • UA1371: STL 2026-12-21 06:00:00 → IAH 2026-12-21 08:21:00; layover at IAH: 101 minutes.
    • UA1823: IAH 2026-12-21 10:02:00 → AUS 2026-12-21 11:13:00.

2026-12-21 · one way · $187.50

  • Southwest Airlines WN4913: STL 2026-12-21 14:45:00 → AUS 2026-12-21 16:50:00; nonstop; 125 minutes. Local airport times.

2026-12-21 · one way · $193.75

  • Southwest Airlines WN4164 / WN4831: STL 2026-12-21 08:00:00 → AUS 2026-12-21 12:40:00; 1 stop(s) via MCI; 280 minutes. Local airport times.
    • WN4164: STL 2026-12-21 08:00:00 → MCI 2026-12-21 09:10:00; layover at MCI: 90 minutes.
    • WN4831: MCI 2026-12-21 10:40:00 → AUS 2026-12-21 12:40:00.

2026-12-21 · one way · $193.75

  • Southwest Airlines WN4132 / WN1656: STL 2026-12-21 19:10:00 → AUS 2026-12-21 23:25:00; 1 stop(s) via DAL; 255 minutes. Local airport times.
    • WN4132: STL 2026-12-21 19:10:00 → DAL 2026-12-21 20:50:00; layover at DAL: 85 minutes.
    • WN1656: DAL 2026-12-21 22:15:00 → AUS 2026-12-21 23:25:00.

2026-12-21 · one way · $193.75

  • Southwest Airlines WN287 / WN2891: STL 2026-12-21 10:55:00 → AUS 2026-12-21 16:35:00; 1 stop(s) via MDW; 340 minutes. Local airport times.
    • WN287: STL 2026-12-21 10:55:00 → MDW 2026-12-21 12:05:00; layover at MDW: 110 minutes.
    • WN2891: MDW 2026-12-21 13:55:00 → AUS 2026-12-21 16:35:00.

2026-12-21 · one way · $193.75

  • Southwest Airlines WN4149 / WN2392: STL 2026-12-21 05:05:00 → AUS 2026-12-21 10:40:00; 1 stop(s) via HOU; 335 minutes. Local airport times.
    • WN4149: STL 2026-12-21 05:05:00 → HOU 2026-12-21 07:10:00; layover at HOU: 155 minutes.
    • WN2392: HOU 2026-12-21 09:45:00 → AUS 2026-12-21 10:40:00.

More dates for this route