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Saint Louis → San Antonio

Dec 21, 2026 · one way

STL → SAT1 adulteconomyOne way

8 flight options · 2 airlines

Nonstop flights

Mon, Dec 21 · One way

Southwest Airlines
8:25 amSTL
2h 15m
Nonstop
10:40 amSAT

One-way total · 1 adult · Taxes included

Mon, Dec 21 · One way

Southwest Airlines
10:15 pmSTL
2h 25m
Nonstop
12:40 am+1SAT

One-way total · 1 adult · Taxes included

One-stop flights

Mon, Dec 21 · One way

American Airlines
11:37 amSTL
6h 29m
ORD · 1h 51m
6:06 pmSAT

One-way total · 1 adult · Taxes included

Mon, Dec 21 · One way

Southwest Airlines
12:40 pmSTL
5h 20m
MCI · 2h 10m
6:00 pmSAT

One-way total · 1 adult · Taxes included

Mon, Dec 21 · One way

Southwest Airlines
7:10 pmSTL
4h 20m
DAL · 1h 25m
11:30 pmSAT

One-way total · 1 adult · Taxes included

Mon, Dec 21 · One way

Southwest Airlines
7:55 amSTL
6h 40m
MSY · 3h 15m
2:35 pmSAT

One-way total · 1 adult · Taxes included

Mon, Dec 21 · One way

Southwest Airlines
2:55 pmSTL
4h 35m
BNA · 1h
7:30 pmSAT

One-way total · 1 adult · Taxes included

Mon, Dec 21 · One way

American Airlines
12:58 pmSTL
6h 22m
DFW · 3h 5m
7:20 pmSAT

One-way total · 1 adult · Taxes included

Make this trip yours

STL ⇄ SAT

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 AirlinesWN4198$218.752026-10-29T01:29:00Z
2026-12-21 · one wayAmerican AirlinesAA3198 + AA4551$231.252026-10-29T01:29:00Z
2026-12-21 · one waySouthwest AirlinesWN4793$218.752026-10-29T01:29:00Z
2026-12-21 · one waySouthwest AirlinesWN4372 + WN802$206.252026-10-29T01:29:00Z
2026-12-21 · one waySouthwest AirlinesWN4132 + WN1772$206.252026-10-29T01:29:00Z
2026-12-21 · one waySouthwest AirlinesWN4182 + WN3136$206.252026-10-29T01:29:00Z
2026-12-21 · one waySouthwest AirlinesWN459 + WN716$206.252026-10-29T01:29:00Z
2026-12-21 · one wayAmerican AirlinesAA5082 + AA526$231.252026-10-29T01:29:00Z

2026-12-21 · one way · $218.75

  • Southwest Airlines WN4198: STL 2026-12-21 08:25:00 → SAT 2026-12-21 10:40:00; nonstop; 135 minutes. Local airport times.

2026-12-21 · one way · $231.25

  • American Airlines AA3198 / AA4551: STL 2026-12-21 11:37:00 → SAT 2026-12-21 18:06:00; 1 stop(s) via ORD; 389 minutes. Local airport times.
    • AA3198: STL 2026-12-21 11:37:00 → ORD 2026-12-21 12:59:00; layover at ORD: 111 minutes.
    • AA4551: ORD 2026-12-21 14:50:00 → SAT 2026-12-21 18:06:00.

2026-12-21 · one way · $218.75

  • Southwest Airlines WN4793: STL 2026-12-21 22:15:00 → SAT 2026-12-22 00:40:00; nonstop; 145 minutes. Local airport times.

2026-12-21 · one way · $206.25

  • Southwest Airlines WN4372 / WN802: STL 2026-12-21 12:40:00 → SAT 2026-12-21 18:00:00; 1 stop(s) via MCI; 320 minutes. Local airport times.
    • WN4372: STL 2026-12-21 12:40:00 → MCI 2026-12-21 13:45:00; layover at MCI: 130 minutes.
    • WN802: MCI 2026-12-21 15:55:00 → SAT 2026-12-21 18:00:00.

2026-12-21 · one way · $206.25

  • Southwest Airlines WN4132 / WN1772: STL 2026-12-21 19:10:00 → SAT 2026-12-21 23:30:00; 1 stop(s) via DAL; 260 minutes. Local airport times.
    • WN4132: STL 2026-12-21 19:10:00 → DAL 2026-12-21 20:50:00; layover at DAL: 85 minutes.
    • WN1772: DAL 2026-12-21 22:15:00 → SAT 2026-12-21 23:30:00.

2026-12-21 · one way · $206.25

  • Southwest Airlines WN4182 / WN3136: STL 2026-12-21 07:55:00 → SAT 2026-12-21 14:35:00; 1 stop(s) via MSY; 400 minutes. Local airport times.
    • WN4182: STL 2026-12-21 07:55:00 → MSY 2026-12-21 09:40:00; layover at MSY: 195 minutes.
    • WN3136: MSY 2026-12-21 12:55:00 → SAT 2026-12-21 14:35:00.

2026-12-21 · one way · $206.25

  • Southwest Airlines WN459 / WN716: STL 2026-12-21 14:55:00 → SAT 2026-12-21 19:30:00; 1 stop(s) via BNA; 275 minutes. Local airport times.
    • WN459: STL 2026-12-21 14:55:00 → BNA 2026-12-21 16:05:00; layover at BNA: 60 minutes.
    • WN716: BNA 2026-12-21 17:05:00 → SAT 2026-12-21 19:30:00.

2026-12-21 · one way · $231.25

  • American Airlines AA5082 / AA526: STL 2026-12-21 12:58:00 → SAT 2026-12-21 19:20:00; 1 stop(s) via DFW; 382 minutes. Local airport times.
    • AA5082: STL 2026-12-21 12:58:00 → DFW 2026-12-21 15:05:00; layover at DFW: 185 minutes.
    • AA526: DFW 2026-12-21 18:10:00 → SAT 2026-12-21 19:20:00.

More dates for this route