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Saint Louis → Austin

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STL → AUS1 adulteconomy

24 flight options · 3 airlines

Round-trip flights

Fri, Nov 20 – Mon, Nov 23

Southwest Airlines
2:45 pmSTL
2h 5m
Nonstop
4:50 pmAUS
Southwest Airlines
3:15 pmAUS
2h 5m
Nonstop
5:20 pmSTL

Round-trip total · 1 adult · Taxes included

Fri, Nov 20 – Mon, Nov 23

American Airlines
6:44 pmSTL
4h 15m
DFW · 1h 9m
10:59 pmAUS
American Airlines
3:00 pmAUS
4h 36m
DFW · 1h 40m
7:36 pmSTL

Round-trip total · 1 adult · Taxes included

Fri, Nov 20 – Mon, Nov 23

United Airlines
6:00 amSTL
5h 13m
IAH · 1h 41m
11:13 amAUS
United Airlines
5:15 amAUS
4h 34m
IAH · 1h 12m
9:49 amSTL

Round-trip total · 1 adult · Taxes included

Fri, Nov 27 – Fri, Dec 4

Southwest Airlines
2:45 pmSTL
2h 5m
Nonstop
4:50 pmAUS
Southwest Airlines
7:35 amAUS
2h
Nonstop
9:35 amSTL

Round-trip total · 1 adult · Taxes included

Fri, Nov 20 – Mon, Nov 23

Southwest Airlines
8:25 pmSTL
2h 10m
Nonstop
10:35 pmAUS
Southwest Airlines
3:15 pmAUS
2h 5m
Nonstop
5:20 pmSTL

Round-trip total · 1 adult · Taxes included

Fri, Nov 27 – Fri, Dec 4

Southwest Airlines
8:25 pmSTL
2h 10m
Nonstop
10:35 pmAUS
Southwest Airlines
7:35 amAUS
2h
Nonstop
9:35 amSTL

Round-trip total · 1 adult · Taxes included

Fri, Nov 20 – Mon, Nov 23

Southwest Airlines
7:10 pmSTL
4h 15m
DAL · 1h 25m
11:25 pmAUS
Southwest Airlines
3:15 pmAUS
2h 5m
Nonstop
5:20 pmSTL

Round-trip total · 1 adult · Taxes included

Fri, Nov 20 – Mon, Nov 23

Southwest Airlines
1:40 pmSTL
2h 5m
Nonstop
3:45 pmAUS
Southwest Airlines
4:25 pmAUS
4h 20m
BNA · 1h
8:45 pmSTL

Round-trip total · 1 adult · Taxes included

Show 8 more flights

Fri, Nov 20 – Mon, Nov 23

Southwest Airlines
5:05 amSTL
5h 35m
HOU · 2h 35m
10:40 amAUS
Southwest Airlines
3:15 pmAUS
2h 5m
Nonstop
5:20 pmSTL

Round-trip total · 1 adult · Taxes included

Fri, Nov 20 – Mon, Nov 23

Southwest Airlines
8:00 amSTL
4h 40m
MCI · 1h 30m
12:40 pmAUS
Southwest Airlines
3:15 pmAUS
2h 5m
Nonstop
5:20 pmSTL

Round-trip total · 1 adult · Taxes included

Fri, Nov 27 – Fri, Dec 4

Southwest Airlines
10:55 amSTL
5h 40m
MDW · 1h 50m
4:35 pmAUS
Southwest Airlines
7:35 amAUS
2h
Nonstop
9:35 amSTL

Round-trip total · 1 adult · Taxes included

Fri, Nov 27 – Fri, Dec 4

Southwest Airlines
7:10 pmSTL
4h 15m
DAL · 1h 25m
11:25 pmAUS
Southwest Airlines
7:35 amAUS
2h
Nonstop
9:35 amSTL

Round-trip total · 1 adult · Taxes included

Fri, Nov 27 – Fri, Dec 4

Southwest Airlines
5:05 amSTL
5h 35m
HOU · 2h 35m
10:40 amAUS
Southwest Airlines
7:35 amAUS
2h
Nonstop
9:35 amSTL

Round-trip total · 1 adult · Taxes included

Fri, Nov 27 – Fri, Dec 4

Southwest Airlines
8:00 amSTL
4h 40m
MCI · 1h 30m
12:40 pmAUS
Southwest Airlines
7:35 amAUS
2h
Nonstop
9:35 amSTL

Round-trip total · 1 adult · Taxes included

Fri, Nov 27 – Fri, Dec 4

American Airlines
6:44 pmSTL
4h 15m
DFW · 1h 9m
10:59 pmAUS
American Airlines
3:00 pmAUS
4h 36m
DFW · 1h 40m
7:36 pmSTL

Round-trip total · 1 adult · Taxes included

Fri, Nov 27 – Fri, Dec 4

United Airlines
6:00 amSTL
5h 13m
IAH · 1h 41m
11:13 amAUS
United Airlines
5:15 amAUS
4h 34m
IAH · 1h 12m
9:49 amSTL

Round-trip total · 1 adult · Taxes included

One-way flights

Fri, Nov 20 · One way

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

One-way total · 1 adult · Taxes included

Fri, Nov 20 · One way

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

One-way total · 1 adult · Taxes included

Fri, Nov 20 · One way

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

One-way total · 1 adult · Taxes included

Fri, Nov 20 · One way

Southwest Airlines
8:25 pmSTL
2h 10m
Nonstop
10:35 pmAUS

One-way total · 1 adult · Taxes included

Fri, Nov 20 · One way

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

One-way total · 1 adult · Taxes included

Fri, Nov 20 · One way

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

One-way total · 1 adult · Taxes included

Fri, Nov 20 · One way

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

One-way total · 1 adult · Taxes included

Fri, Nov 20 · One way

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

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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Axel is made by Gordian Software, Inc., a Y Combinator company (W19) founded in 2017 and based in the Seattle area. The company is led by CEO Stephen Grabowski, formerly of Skyscanner. How Axel works · About

More dates

Nov 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)
2026-11-20 · one waySouthwest AirlinesWN4913$150.002026-10-29T01:28:14Z
2026-11-20 → 2026-11-23Southwest AirlinesWN4913 / WN438$290.002026-10-29T01:28:14Z
2026-11-20 · one wayAmerican AirlinesAA2269 + AA2707$165.002026-10-29T01:28:14Z
2026-11-20 · one wayUnited AirlinesUA1371 + UA1823$175.002026-10-29T01:28:14Z
2026-11-20 → 2026-11-23American AirlinesAA2269 + AA2707 / AA3885 + AA2246$320.002026-10-29T01:28:14Z
2026-11-20 → 2026-11-23United AirlinesUA1371 + UA1823 / UA1966 + UA4556$340.002026-10-29T01:28:14Z
2026-11-27 → 2026-12-04Southwest AirlinesWN4913 / WN436$326.252026-10-29T01:28:14Z
2026-11-20 · one waySouthwest AirlinesWN2655$150.002026-10-29T01:28:14Z
2026-11-20 → 2026-11-23Southwest AirlinesWN2655 / WN438$290.002026-10-29T01:28:14Z
2026-11-27 → 2026-12-04Southwest AirlinesWN2655 / WN436$326.252026-10-29T01:28:14Z
2026-11-20 · one waySouthwest AirlinesWN287 + WN2891$155.002026-10-29T01:28:14Z
2026-11-20 · one waySouthwest AirlinesWN4132 + WN1656$155.002026-10-29T01:28:14Z
2026-11-20 · one waySouthwest AirlinesWN4149 + WN2392$155.002026-10-29T01:28:14Z
2026-11-20 · one waySouthwest AirlinesWN4164 + WN4831$155.002026-10-29T01:28:14Z
2026-11-20 → 2026-11-23Southwest AirlinesWN4132 + WN1656 / WN438$295.002026-10-29T01:28:14Z
2026-11-20 → 2026-11-23Southwest AirlinesWN4913 / WN2737 + WN742$295.002026-10-29T01:28:14Z
2026-11-20 → 2026-11-23Southwest AirlinesWN4149 + WN2392 / WN438$295.002026-10-29T01:28:14Z
2026-11-20 → 2026-11-23Southwest AirlinesWN4164 + WN4831 / WN438$295.002026-10-29T01:28:14Z
2026-11-27 → 2026-12-04Southwest AirlinesWN287 + WN2891 / WN436$332.502026-10-29T01:28:14Z
2026-11-27 → 2026-12-04Southwest AirlinesWN4132 + WN1656 / WN436$332.502026-10-29T01:28:14Z
2026-11-27 → 2026-12-04Southwest AirlinesWN4149 + WN2392 / WN436$332.502026-10-29T01:28:14Z
2026-11-27 → 2026-12-04Southwest AirlinesWN4164 + WN4831 / WN436$332.502026-10-29T01:28:14Z
2026-11-27 → 2026-12-04American AirlinesAA2269 + AA2707 / AA3885 + AA2246$360.002026-10-29T01:28:14Z
2026-11-27 → 2026-12-04United AirlinesUA1371 + UA1823 / UA1966 + UA4556$382.502026-10-29T01:28:14Z

2026-11-20 · one way · $150.00

  • Southwest Airlines WN4913: STL 2026-11-20 14:45:00 → AUS 2026-11-20 16:50:00; nonstop; 125 minutes. Local airport times.

2026-11-20 → 2026-11-23 · $290.00

  • Southwest Airlines WN4913: STL 2026-11-20 14:45:00 → AUS 2026-11-20 16:50:00; nonstop; 125 minutes. Local airport times.
  • Southwest Airlines WN438: AUS 2026-11-23 15:15:00 → STL 2026-11-23 17:20:00; nonstop; 125 minutes. Local airport times.

2026-11-20 · one way · $165.00

  • American Airlines AA2269 / AA2707: STL 2026-11-20 18:44:00 → AUS 2026-11-20 22:59:00; 1 stop(s) via DFW; 255 minutes. Local airport times.
    • AA2269: STL 2026-11-20 18:44:00 → DFW 2026-11-20 20:45:00; layover at DFW: 69 minutes.
    • AA2707: DFW 2026-11-20 21:54:00 → AUS 2026-11-20 22:59:00.

2026-11-20 · one way · $175.00

  • United Airlines UA1371 / UA1823: STL 2026-11-20 06:00:00 → AUS 2026-11-20 11:13:00; 1 stop(s) via IAH; 313 minutes. Local airport times.
    • UA1371: STL 2026-11-20 06:00:00 → IAH 2026-11-20 08:21:00; layover at IAH: 101 minutes.
    • UA1823: IAH 2026-11-20 10:02:00 → AUS 2026-11-20 11:13:00.

2026-11-20 → 2026-11-23 · $320.00

  • American Airlines AA2269 / AA2707: STL 2026-11-20 18:44:00 → AUS 2026-11-20 22:59:00; 1 stop(s) via DFW; 255 minutes. Local airport times.
    • AA2269: STL 2026-11-20 18:44:00 → DFW 2026-11-20 20:45:00; layover at DFW: 69 minutes.
    • AA2707: DFW 2026-11-20 21:54:00 → AUS 2026-11-20 22:59:00.
  • American Airlines AA3885 / AA2246: AUS 2026-11-23 15:00:00 → STL 2026-11-23 19:36:00; 1 stop(s) via DFW; 276 minutes. Local airport times.
    • AA3885: AUS 2026-11-23 15:00:00 → DFW 2026-11-23 16:15:00; layover at DFW: 100 minutes.
    • AA2246: DFW 2026-11-23 17:55:00 → STL 2026-11-23 19:36:00.

2026-11-20 → 2026-11-23 · $340.00

  • United Airlines UA1371 / UA1823: STL 2026-11-20 06:00:00 → AUS 2026-11-20 11:13:00; 1 stop(s) via IAH; 313 minutes. Local airport times.
    • UA1371: STL 2026-11-20 06:00:00 → IAH 2026-11-20 08:21:00; layover at IAH: 101 minutes.
    • UA1823: IAH 2026-11-20 10:02:00 → AUS 2026-11-20 11:13:00.
  • United Airlines UA1966 / UA4556: AUS 2026-11-23 05:15:00 → STL 2026-11-23 09:49:00; 1 stop(s) via IAH; 274 minutes. Local airport times.
    • UA1966: AUS 2026-11-23 05:15:00 → IAH 2026-11-23 06:28:00; layover at IAH: 72 minutes.
    • UA4556: IAH 2026-11-23 07:40:00 → STL 2026-11-23 09:49:00.

2026-11-27 → 2026-12-04 · $326.25

  • Southwest Airlines WN4913: STL 2026-11-27 14:45:00 → AUS 2026-11-27 16:50:00; nonstop; 125 minutes. Local airport times.
  • Southwest Airlines WN436: AUS 2026-12-04 07:35:00 → STL 2026-12-04 09:35:00; nonstop; 120 minutes. Local airport times.

2026-11-20 · one way · $150.00

  • Southwest Airlines WN2655: STL 2026-11-20 20:25:00 → AUS 2026-11-20 22:35:00; nonstop; 130 minutes. Local airport times.

2026-11-20 → 2026-11-23 · $290.00

  • Southwest Airlines WN2655: STL 2026-11-20 20:25:00 → AUS 2026-11-20 22:35:00; nonstop; 130 minutes. Local airport times.
  • Southwest Airlines WN438: AUS 2026-11-23 15:15:00 → STL 2026-11-23 17:20:00; nonstop; 125 minutes. Local airport times.

2026-11-27 → 2026-12-04 · $326.25

  • Southwest Airlines WN2655: STL 2026-11-27 20:25:00 → AUS 2026-11-27 22:35:00; nonstop; 130 minutes. Local airport times.
  • Southwest Airlines WN436: AUS 2026-12-04 07:35:00 → STL 2026-12-04 09:35:00; nonstop; 120 minutes. Local airport times.

2026-11-20 · one way · $155.00

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

2026-11-20 · one way · $155.00

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

2026-11-20 · one way · $155.00

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

2026-11-20 · one way · $155.00

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

2026-11-20 → 2026-11-23 · $295.00

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

2026-11-20 → 2026-11-23 · $295.00

  • Southwest Airlines WN4913: STL 2026-11-20 13:40:00 → AUS 2026-11-20 15:45:00; nonstop; 125 minutes. Local airport times.
  • Southwest Airlines WN2737 / WN742: AUS 2026-11-23 16:25:00 → STL 2026-11-23 20:45:00; 1 stop(s) via BNA; 260 minutes. Local airport times.
    • WN2737: AUS 2026-11-23 16:25:00 → BNA 2026-11-23 18:30:00; layover at BNA: 60 minutes.
    • WN742: BNA 2026-11-23 19:30:00 → STL 2026-11-23 20:45:00.

2026-11-20 → 2026-11-23 · $295.00

  • Southwest Airlines WN4149 / WN2392: STL 2026-11-20 05:05:00 → AUS 2026-11-20 10:40:00; 1 stop(s) via HOU; 335 minutes. Local airport times.
    • WN4149: STL 2026-11-20 05:05:00 → HOU 2026-11-20 07:10:00; layover at HOU: 155 minutes.
    • WN2392: HOU 2026-11-20 09:45:00 → AUS 2026-11-20 10:40:00.
  • Southwest Airlines WN438: AUS 2026-11-23 15:15:00 → STL 2026-11-23 17:20:00; nonstop; 125 minutes. Local airport times.

2026-11-20 → 2026-11-23 · $295.00

  • Southwest Airlines WN4164 / WN4831: STL 2026-11-20 08:00:00 → AUS 2026-11-20 12:40:00; 1 stop(s) via MCI; 280 minutes. Local airport times.
    • WN4164: STL 2026-11-20 08:00:00 → MCI 2026-11-20 09:10:00; layover at MCI: 90 minutes.
    • WN4831: MCI 2026-11-20 10:40:00 → AUS 2026-11-20 12:40:00.
  • Southwest Airlines WN438: AUS 2026-11-23 15:15:00 → STL 2026-11-23 17:20:00; nonstop; 125 minutes. Local airport times.

2026-11-27 → 2026-12-04 · $332.50

  • Southwest Airlines WN287 / WN2891: STL 2026-11-27 10:55:00 → AUS 2026-11-27 16:35:00; 1 stop(s) via MDW; 340 minutes. Local airport times.
    • WN287: STL 2026-11-27 10:55:00 → MDW 2026-11-27 12:05:00; layover at MDW: 110 minutes.
    • WN2891: MDW 2026-11-27 13:55:00 → AUS 2026-11-27 16:35:00.
  • Southwest Airlines WN436: AUS 2026-12-04 07:35:00 → STL 2026-12-04 09:35:00; nonstop; 120 minutes. Local airport times.

2026-11-27 → 2026-12-04 · $332.50

  • Southwest Airlines WN4132 / WN1656: STL 2026-11-27 19:10:00 → AUS 2026-11-27 23:25:00; 1 stop(s) via DAL; 255 minutes. Local airport times.
    • WN4132: STL 2026-11-27 19:10:00 → DAL 2026-11-27 20:50:00; layover at DAL: 85 minutes.
    • WN1656: DAL 2026-11-27 22:15:00 → AUS 2026-11-27 23:25:00.
  • Southwest Airlines WN436: AUS 2026-12-04 07:35:00 → STL 2026-12-04 09:35:00; nonstop; 120 minutes. Local airport times.

2026-11-27 → 2026-12-04 · $332.50

  • Southwest Airlines WN4149 / WN2392: STL 2026-11-27 05:05:00 → AUS 2026-11-27 10:40:00; 1 stop(s) via HOU; 335 minutes. Local airport times.
    • WN4149: STL 2026-11-27 05:05:00 → HOU 2026-11-27 07:10:00; layover at HOU: 155 minutes.
    • WN2392: HOU 2026-11-27 09:45:00 → AUS 2026-11-27 10:40:00.
  • Southwest Airlines WN436: AUS 2026-12-04 07:35:00 → STL 2026-12-04 09:35:00; nonstop; 120 minutes. Local airport times.

2026-11-27 → 2026-12-04 · $332.50

  • Southwest Airlines WN4164 / WN4831: STL 2026-11-27 08:00:00 → AUS 2026-11-27 12:40:00; 1 stop(s) via MCI; 280 minutes. Local airport times.
    • WN4164: STL 2026-11-27 08:00:00 → MCI 2026-11-27 09:10:00; layover at MCI: 90 minutes.
    • WN4831: MCI 2026-11-27 10:40:00 → AUS 2026-11-27 12:40:00.
  • Southwest Airlines WN436: AUS 2026-12-04 07:35:00 → STL 2026-12-04 09:35:00; nonstop; 120 minutes. Local airport times.

2026-11-27 → 2026-12-04 · $360.00

  • American Airlines AA2269 / AA2707: STL 2026-11-27 18:44:00 → AUS 2026-11-27 22:59:00; 1 stop(s) via DFW; 255 minutes. Local airport times.
    • AA2269: STL 2026-11-27 18:44:00 → DFW 2026-11-27 20:45:00; layover at DFW: 69 minutes.
    • AA2707: DFW 2026-11-27 21:54:00 → AUS 2026-11-27 22:59:00.
  • American Airlines AA3885 / AA2246: AUS 2026-12-04 15:00:00 → STL 2026-12-04 19:36:00; 1 stop(s) via DFW; 276 minutes. Local airport times.
    • AA3885: AUS 2026-12-04 15:00:00 → DFW 2026-12-04 16:15:00; layover at DFW: 100 minutes.
    • AA2246: DFW 2026-12-04 17:55:00 → STL 2026-12-04 19:36:00.

2026-11-27 → 2026-12-04 · $382.50

  • United Airlines UA1371 / UA1823: STL 2026-11-27 06:00:00 → AUS 2026-11-27 11:13:00; 1 stop(s) via IAH; 313 minutes. Local airport times.
    • UA1371: STL 2026-11-27 06:00:00 → IAH 2026-11-27 08:21:00; layover at IAH: 101 minutes.
    • UA1823: IAH 2026-11-27 10:02:00 → AUS 2026-11-27 11:13:00.
  • United Airlines UA1966 / UA4556: AUS 2026-12-04 05:15:00 → STL 2026-12-04 09:49:00; 1 stop(s) via IAH; 274 minutes. Local airport times.
    • UA1966: AUS 2026-12-04 05:15:00 → IAH 2026-12-04 06:28:00; layover at IAH: 72 minutes.
    • UA4556: IAH 2026-12-04 07:40:00 → STL 2026-12-04 09:49:00.

More dates for this route