Travel with Axel,
get the best price.

San Antonio → Saint Louis

Dec 2, 2026 · return Dec 4, 2026

SAT → STL1 adulteconomyRound trip

8 flight options · 4 airlines

Nonstop flights

Wed, Dec 2 – Fri, Dec 4

Southwest Airlines
7:25 amSAT
2h 10m
Nonstop
9:35 amSTL
Southwest Airlines
8:20 amSTL
2h 15m
Nonstop
10:35 amSAT

Round-trip total · 1 adult · Taxes included

Wed, Dec 2 – Fri, Dec 4

Southwest Airlines
3:20 pmSAT
2h
Nonstop
5:20 pmSTL
Southwest Airlines
8:20 amSTL
2h 15m
Nonstop
10:35 amSAT

Round-trip total · 1 adult · Taxes included

One-stop flights

Wed, Dec 2 – Fri, Dec 4

United Airlines
5:15 amSAT
4h 34m
IAH · 1h 17m
9:49 amSTL
Southwest Airlines
8:20 amSTL
2h 15m
Nonstop
10:35 amSAT

Round-trip total · 1 adult · Taxes included

Wed, Dec 2 – Fri, Dec 4

Delta Air Lines
4:36 pmSAT
5h 2m
ATL · 1h
9:38 pmSTL
Southwest Airlines
8:20 amSTL
2h 15m
Nonstop
10:35 amSAT

Round-trip total · 1 adult · Taxes included

Wed, Dec 2 – Fri, Dec 4

American Airlines
8:00 amSAT
4h 26m
DFW · 1h 10m
12:26 pmSTL
American Airlines
12:58 pmSTL
6h 22m
DFW · 3h 5m
7:20 pmSAT

Round-trip total · 1 adult · Taxes included

Wed, Dec 2 – Fri, Dec 4

Southwest Airlines
3:45 pmSAT
5h 15m
ATL · 1h 15m
9:00 pmSTL
Southwest Airlines
8:20 amSTL
2h 15m
Nonstop
10:35 amSAT

Round-trip total · 1 adult · Taxes included

Wed, Dec 2 – Fri, Dec 4

Southwest Airlines
9:50 amSAT
5h 5m
MDW · 1h 20m
2:55 pmSTL
Southwest Airlines
8:20 amSTL
2h 15m
Nonstop
10:35 amSAT

Round-trip total · 1 adult · Taxes included

Wed, Dec 2 – Fri, Dec 4

United Airlines
6:35 amSAT
5h 47m
ORD · 1h 20m
12:22 pmSTL
Southwest Airlines
8:20 amSTL
2h 15m
Nonstop
10:35 amSAT

Round-trip total · 1 adult · Taxes included

Make this trip yours

SAT ⇄ STL

Economy

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

No account needed to see prices.

Already have an account? Log in

Why book with Axel
  • A real airline bookingThe booking is in the airline’s own system under your name. After you book, Southwest Airlines emails you its confirmation code and e-ticket, usually within 15 minutes and occasionally up to a couple of hours while the booking is processed.
  • Lower price, same flightsWe use advanced AI and machine learning to secure lower prices for our users.
  • Not satisfied? Full refund.If you are unhappy with the experience for any reason, or simply change your mind, cancel within 24 hours of booking (departure 7+ days away) and we refund you in full. We stand by our product. Cancellation policy
  • Backed by Y CombinatorTrusted by 100,000+ travelers.

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

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)
2026-12-02 → 2026-12-04Southwest AirlinesWN3800 / WN4198$305.002026-10-29T01:13:32Z
2026-12-02 → 2026-12-04United Airlines / Southwest AirlinesUA469 + UA4556 / WN4198$322.502026-10-29T01:13:32Z
2026-12-02 → 2026-12-04Delta Air Lines / Southwest AirlinesDL2009 + DL2833 / WN4198$327.502026-10-29T01:13:32Z
2026-12-02 → 2026-12-04American AirlinesAA2070 + AA5082 / AA5082 + AA526$330.002026-10-29T01:13:32Z
2026-12-02 → 2026-12-04Southwest AirlinesWN3801 / WN4198$305.002026-10-29T01:13:32Z
2026-12-02 → 2026-12-04Southwest AirlinesWN840 + WN261 / WN4198$300.002026-10-29T01:13:32Z
2026-12-02 → 2026-12-04Southwest AirlinesWN2348 + WN3092 / WN4198$300.002026-10-29T01:13:32Z
2026-12-02 → 2026-12-04United Airlines / Southwest AirlinesUA1332 + UA1857 / WN4198$322.502026-10-29T01:13:32Z

2026-12-02 → 2026-12-04 · $305.00

  • Southwest Airlines WN3800: SAT 2026-12-02 07:25:00 → STL 2026-12-02 09:35:00; nonstop; 130 minutes. Local airport times.
  • Southwest Airlines WN4198: STL 2026-12-04 08:20:00 → SAT 2026-12-04 10:35:00; nonstop; 135 minutes. Local airport times.

2026-12-02 → 2026-12-04 · $322.50

  • United Airlines UA469 / UA4556: SAT 2026-12-02 05:15:00 → STL 2026-12-02 09:49:00; 1 stop(s) via IAH; 274 minutes. Local airport times.
    • UA469: SAT 2026-12-02 05:15:00 → IAH 2026-12-02 06:23:00; layover at IAH: 77 minutes.
    • UA4556: IAH 2026-12-02 07:40:00 → STL 2026-12-02 09:49:00.
  • Southwest Airlines WN4198: STL 2026-12-04 08:20:00 → SAT 2026-12-04 10:35:00; nonstop; 135 minutes. Local airport times.

2026-12-02 → 2026-12-04 · $327.50

  • Delta Air Lines DL2009 / DL2833: SAT 2026-12-02 16:36:00 → STL 2026-12-02 21:38:00; 1 stop(s) via ATL; 302 minutes. Local airport times.
    • DL2009: SAT 2026-12-02 16:36:00 → ATL 2026-12-02 19:54:00; layover at ATL: 60 minutes.
    • DL2833: ATL 2026-12-02 20:54:00 → STL 2026-12-02 21:38:00.
  • Southwest Airlines WN4198: STL 2026-12-04 08:20:00 → SAT 2026-12-04 10:35:00; nonstop; 135 minutes. Local airport times.

2026-12-02 → 2026-12-04 · $330.00

  • American Airlines AA2070 / AA5082: SAT 2026-12-02 08:00:00 → STL 2026-12-02 12:26:00; 1 stop(s) via DFW; 266 minutes. Local airport times.
    • AA2070: SAT 2026-12-02 08:00:00 → DFW 2026-12-02 09:22:00; layover at DFW: 70 minutes.
    • AA5082: DFW 2026-12-02 10:32:00 → STL 2026-12-02 12:26:00.
  • American Airlines AA5082 / AA526: STL 2026-12-04 12:58:00 → SAT 2026-12-04 19:20:00; 1 stop(s) via DFW; 382 minutes. Local airport times.
    • AA5082: STL 2026-12-04 12:58:00 → DFW 2026-12-04 15:05:00; layover at DFW: 185 minutes.
    • AA526: DFW 2026-12-04 18:10:00 → SAT 2026-12-04 19:20:00.

2026-12-02 → 2026-12-04 · $305.00

  • Southwest Airlines WN3801: SAT 2026-12-02 15:20:00 → STL 2026-12-02 17:20:00; nonstop; 120 minutes. Local airport times.
  • Southwest Airlines WN4198: STL 2026-12-04 08:20:00 → SAT 2026-12-04 10:35:00; nonstop; 135 minutes. Local airport times.

2026-12-02 → 2026-12-04 · $300.00

  • Southwest Airlines WN840 / WN261: SAT 2026-12-02 15:45:00 → STL 2026-12-02 21:00:00; 1 stop(s) via ATL; 315 minutes. Local airport times.
    • WN840: SAT 2026-12-02 15:45:00 → ATL 2026-12-02 19:00:00; layover at ATL: 75 minutes.
    • WN261: ATL 2026-12-02 20:15:00 → STL 2026-12-02 21:00:00.
  • Southwest Airlines WN4198: STL 2026-12-04 08:20:00 → SAT 2026-12-04 10:35:00; nonstop; 135 minutes. Local airport times.

2026-12-02 → 2026-12-04 · $300.00

  • Southwest Airlines WN2348 / WN3092: SAT 2026-12-02 09:50:00 → STL 2026-12-02 14:55:00; 1 stop(s) via MDW; 305 minutes. Local airport times.
    • WN2348: SAT 2026-12-02 09:50:00 → MDW 2026-12-02 12:20:00; layover at MDW: 80 minutes.
    • WN3092: MDW 2026-12-02 13:40:00 → STL 2026-12-02 14:55:00.
  • Southwest Airlines WN4198: STL 2026-12-04 08:20:00 → SAT 2026-12-04 10:35:00; nonstop; 135 minutes. Local airport times.

2026-12-02 → 2026-12-04 · $322.50

  • United Airlines UA1332 / UA1857: SAT 2026-12-02 06:35:00 → STL 2026-12-02 12:22:00; 1 stop(s) via ORD; 347 minutes. Local airport times.
    • UA1332: SAT 2026-12-02 06:35:00 → ORD 2026-12-02 09:32:00; layover at ORD: 80 minutes.
    • UA1857: ORD 2026-12-02 10:52:00 → STL 2026-12-02 12:22:00.
  • Southwest Airlines WN4198: STL 2026-12-04 08:20:00 → SAT 2026-12-04 10:35:00; nonstop; 135 minutes. Local airport times.

More dates for this route