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Route overview: San Antonio to Saint Louis (STL) flight deals

San Antonio → Saint Louis

Dec 20, 2026 · choose your return date

SAT → STL1 adulteconomyOne way and round trips

30 flight options · 3 airlines

Choose your return date

One-way flights and round trips by duration. Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

December 2026

Dec 20, 2026 · One waySouthwest AirlinesNonstop$208.00 Dec 20, 2026 · One wayAmerican AirlinesUp to 1 stop each way$227.50 Dec 20, 2026 – Dec 21, 2026 · 1 nightSouthwest AirlinesNonstop$396.50 Dec 20, 2026 – Dec 21, 2026 · 1 nightUnited Airlines / Southwest AirlinesUp to 1 stop each way$419.25 Dec 20, 2026 – Dec 22, 2026 · 2 nightsSouthwest AirlinesNonstop$396.50 Dec 20, 2026 – Dec 22, 2026 · 2 nightsUnited Airlines / Southwest AirlinesUp to 1 stop each way$419.25 Dec 20, 2026 – Dec 23, 2026 · 3 nightsSouthwest AirlinesNonstop$396.50 Dec 20, 2026 – Dec 23, 2026 · 3 nightsUnited Airlines / Southwest AirlinesUp to 1 stop each way$419.25 Dec 20, 2026 – Dec 24, 2026 · 4 nightsSouthwest AirlinesNonstop$396.50 Dec 20, 2026 – Dec 24, 2026 · 4 nightsAmerican AirlinesUp to 1 stop each way$429.00 Dec 20, 2026 – Dec 25, 2026 · 5 nightsSouthwest AirlinesNonstop$396.50 Dec 20, 2026 – Dec 25, 2026 · 5 nightsUnited Airlines / Southwest AirlinesUp to 1 stop each way$419.25 Dec 20, 2026 – Dec 26, 2026 · 6 nightsSouthwest AirlinesNonstop$396.50 Dec 20, 2026 – Dec 26, 2026 · 6 nightsUnited Airlines / Southwest AirlinesUp to 1 stop each way$419.25 Dec 20, 2026 – Dec 27, 2026 · 7 nightsSouthwest AirlinesNonstop$396.50 Dec 20, 2026 – Dec 27, 2026 · 7 nightsUnited Airlines / Southwest AirlinesUp to 1 stop each way$419.25 Dec 20, 2026 – Dec 28, 2026 · 8 nightsSouthwest AirlinesNonstop$388.88 Dec 20, 2026 – Dec 28, 2026 · 8 nightsUnited Airlines / Southwest AirlinesUp to 1 stop each way$411.63 Dec 20, 2026 – Dec 29, 2026 · 9 nightsSouthwest AirlinesNonstop$388.88 Dec 20, 2026 – Dec 29, 2026 · 9 nightsUnited Airlines / Southwest AirlinesUp to 1 stop each way$411.63 Dec 20, 2026 – Dec 30, 2026 · 10 nightsSouthwest AirlinesNonstop$388.88 Dec 20, 2026 – Dec 30, 2026 · 10 nightsUnited Airlines / Southwest AirlinesUp to 1 stop each way$411.63 Dec 20, 2026 – Dec 31, 2026 · 11 nightsSouthwest AirlinesNonstop$388.88 Dec 20, 2026 – Dec 31, 2026 · 11 nightsAmerican AirlinesUp to 1 stop each way$420.75 Dec 20, 2026 – Jan 1, 2027 · 12 nightsSouthwest AirlinesNonstop$378.20 Dec 20, 2026 – Jan 1, 2027 · 12 nightsUnited Airlines / Southwest AirlinesUp to 1 stop each way$400.95 Dec 20, 2026 – Jan 2, 2027 · 13 nightsSouthwest AirlinesNonstop$378.20 Dec 20, 2026 – Jan 2, 2027 · 13 nightsUnited Airlines / Southwest AirlinesUp to 1 stop each way$400.95 Dec 20, 2026 – Jan 3, 2027 · 14 nightsSouthwest AirlinesNonstop$378.20 Dec 20, 2026 – Jan 3, 2027 · 14 nightsUnited Airlines / Southwest AirlinesUp to 1 stop each way$400.95

Flights for your trip

  1. Sun, Dec 20 · One way

    Southwest Airlines
    7:30 amSAT
    2h 5m
    Nonstop
    9:35 amSTL

    One-way total · 1 adult · Taxes included

  2. Sun, Dec 20 · One way

    American Airlines
    8:00 amSAT
    4h 26m
    DFW · 1h 10m
    12:26 pmSTL

    One-way total · 1 adult · Taxes included

  3. Sun, Dec 20 – Mon, Dec 21

    Southwest Airlines
    7:30 amSAT
    2h 5m
    Nonstop
    9:35 amSTL
    Southwest Airlines
    8:25 amSTL
    2h 15m
    Nonstop
    10:40 amSAT

    Round-trip total · 1 adult · Taxes included

  4. Sun, Dec 20 – Mon, Dec 21

    United Airlines
    5:15 amSAT
    4h 34m
    IAH · 1h 17m
    9:49 amSTL
    Southwest Airlines
    8:25 amSTL
    2h 15m
    Nonstop
    10:40 amSAT

    Round-trip total · 1 adult · Taxes included

  5. Sun, Dec 20 – Tue, Dec 22

    Southwest Airlines
    7:30 amSAT
    2h 5m
    Nonstop
    9:35 amSTL
    Southwest Airlines
    8:25 amSTL
    2h 15m
    Nonstop
    10:40 amSAT

    Round-trip total · 1 adult · Taxes included

  6. Sun, Dec 20 – Tue, Dec 22

    United Airlines
    5:15 amSAT
    4h 34m
    IAH · 1h 17m
    9:49 amSTL
    Southwest Airlines
    8:25 amSTL
    2h 15m
    Nonstop
    10:40 amSAT

    Round-trip total · 1 adult · Taxes included

  7. Sun, Dec 20 – Wed, Dec 23

    Southwest Airlines
    7:30 amSAT
    2h 5m
    Nonstop
    9:35 amSTL
    Southwest Airlines
    8:25 amSTL
    2h 15m
    Nonstop
    10:40 amSAT

    Round-trip total · 1 adult · Taxes included

  8. Sun, Dec 20 – Wed, Dec 23

    United Airlines
    5:15 amSAT
    4h 34m
    IAH · 1h 17m
    9:49 amSTL
    Southwest Airlines
    8:25 amSTL
    2h 15m
    Nonstop
    10:40 amSAT

    Round-trip total · 1 adult · Taxes included

  9. Sun, Dec 20 – Thu, Dec 24

    Southwest Airlines
    7:30 amSAT
    2h 5m
    Nonstop
    9:35 amSTL
    Southwest Airlines
    8:25 amSTL
    2h 15m
    Nonstop
    10:40 amSAT

    Round-trip total · 1 adult · Taxes included

  10. Sun, Dec 20 – Thu, Dec 24

    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

  11. Sun, Dec 20 – Sat, Dec 26

    Southwest Airlines
    7:30 amSAT
    2h 5m
    Nonstop
    9:35 amSTL
    Southwest Airlines
    7:55 amSTL
    2h 15m
    Nonstop
    10:10 amSAT

    Round-trip total · 1 adult · Taxes included

  12. Sun, Dec 20 – Sat, Dec 26

    United Airlines
    5:15 amSAT
    4h 34m
    IAH · 1h 17m
    9:49 amSTL
    Southwest Airlines
    7:55 amSTL
    2h 15m
    Nonstop
    10:10 amSAT

    Round-trip total · 1 adult · Taxes included

  13. Sun, Dec 20 – Sun, Dec 27

    Southwest Airlines
    7:30 amSAT
    2h 5m
    Nonstop
    9:35 amSTL
    Southwest Airlines
    8:20 amSTL
    2h 15m
    Nonstop
    10:35 amSAT

    Round-trip total · 1 adult · Taxes included

  14. Sun, Dec 20 – Sun, Dec 27

    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

  15. Sun, Dec 20 – Mon, Dec 28

    Southwest Airlines
    7:30 amSAT
    2h 5m
    Nonstop
    9:35 amSTL
    Southwest Airlines
    8:25 amSTL
    2h 15m
    Nonstop
    10:40 amSAT

    Round-trip total · 1 adult · Taxes included

  16. Sun, Dec 20 – Mon, Dec 28

    United Airlines
    5:15 amSAT
    4h 34m
    IAH · 1h 17m
    9:49 amSTL
    Southwest Airlines
    8:25 amSTL
    2h 15m
    Nonstop
    10:40 amSAT

    Round-trip total · 1 adult · Taxes included

  17. Sun, Dec 20 – Wed, Dec 30

    Southwest Airlines
    7:30 amSAT
    2h 5m
    Nonstop
    9:35 amSTL
    Southwest Airlines
    8:25 amSTL
    2h 15m
    Nonstop
    10:40 amSAT

    Round-trip total · 1 adult · Taxes included

  18. Sun, Dec 20 – Wed, Dec 30

    United Airlines
    5:15 amSAT
    4h 34m
    IAH · 1h 17m
    9:49 amSTL
    Southwest Airlines
    8:25 amSTL
    2h 15m
    Nonstop
    10:40 amSAT

    Round-trip total · 1 adult · Taxes included

  19. Sun, Dec 20 – Thu, Dec 31

    Southwest Airlines
    7:30 amSAT
    2h 5m
    Nonstop
    9:35 amSTL
    Southwest Airlines
    8:25 amSTL
    2h 15m
    Nonstop
    10:40 amSAT

    Round-trip total · 1 adult · Taxes included

  20. Sun, Dec 20 – Thu, Dec 31

    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

  21. Sun, Dec 20 – Fri, Jan 1

    Southwest Airlines
    7:30 amSAT
    2h 5m
    Nonstop
    9:35 amSTL
    Southwest Airlines
    8:20 amSTL
    2h 15m
    Nonstop
    10:35 amSAT

    Round-trip total · 1 adult · Taxes included

  22. Sun, Dec 20 – Fri, Jan 1

    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

  23. Sun, Dec 20 – Sun, Jan 3

    Southwest Airlines
    7:30 amSAT
    2h 5m
    Nonstop
    9:35 amSTL
    Southwest Airlines
    8:20 amSTL
    2h 15m
    Nonstop
    10:35 amSAT

    Round-trip total · 1 adult · Taxes included

  24. Sun, Dec 20 – Sun, Jan 3

    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

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SAT ⇄ STL

Economy

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Explore this route

All dates for this routeDec 19, 2026 · Return optionsDec 21, 2026 · Return optionsHotels in St. Louis with Axel
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Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

Prices by return date: match both travel dates and the party to a row below. Each total is for that exact trip, issued at the time shown. To book or select flights, follow that row's price link; it keeps the exact dates and travelers.

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2026-12-20 · one waySouthwest AirlinesWN3800Axel-exclusive $208.002026-10-29T01:13:32Z
2026-12-20 · one wayAmerican AirlinesAA2070 + AA5082Axel-exclusive $227.502026-10-29T01:13:32Z
2026-12-20 → 2026-12-21Southwest AirlinesWN3800 / WN4198Axel-exclusive $396.502026-10-29T01:13:32Z
2026-12-20 → 2026-12-21United Airlines / Southwest AirlinesUA469 + UA4556 / WN4198Axel-exclusive $419.252026-10-29T01:13:32Z
2026-12-20 → 2026-12-22Southwest AirlinesWN3800 / WN4198Axel-exclusive $396.502026-10-29T01:13:32Z
2026-12-20 → 2026-12-22United Airlines / Southwest AirlinesUA469 + UA4556 / WN4198Axel-exclusive $419.252026-10-29T01:13:32Z
2026-12-20 → 2026-12-23Southwest AirlinesWN3800 / WN4198Axel-exclusive $396.502026-10-29T01:13:32Z
2026-12-20 → 2026-12-23United Airlines / Southwest AirlinesUA469 + UA4556 / WN4198Axel-exclusive $419.252026-10-29T01:13:32Z
2026-12-20 → 2026-12-24Southwest AirlinesWN3800 / WN4198Axel-exclusive $396.502026-10-29T01:13:32Z
2026-12-20 → 2026-12-24American AirlinesAA2070 + AA5082 / AA5082 + AA526Axel-exclusive $429.002026-10-29T01:13:32Z
2026-12-20 → 2026-12-25Southwest AirlinesWN3800 / WN4198Axel-exclusive $396.502026-10-29T01:13:32Z
2026-12-20 → 2026-12-25United Airlines / Southwest AirlinesUA469 + UA4556 / WN4198Axel-exclusive $419.252026-10-29T01:13:32Z
2026-12-20 → 2026-12-26Southwest AirlinesWN3800 / WN4198Axel-exclusive $396.502026-10-29T01:13:32Z
2026-12-20 → 2026-12-26United Airlines / Southwest AirlinesUA469 + UA4556 / WN4198Axel-exclusive $419.252026-10-29T01:13:32Z
2026-12-20 → 2026-12-27Southwest AirlinesWN3800 / WN4198Axel-exclusive $396.502026-10-29T01:13:32Z
2026-12-20 → 2026-12-27United Airlines / Southwest AirlinesUA469 + UA4556 / WN4198Axel-exclusive $419.252026-10-29T01:13:32Z
2026-12-20 → 2026-12-28Southwest AirlinesWN3800 / WN4198Axel-exclusive $388.882026-10-29T01:13:32Z
2026-12-20 → 2026-12-28United Airlines / Southwest AirlinesUA469 + UA4556 / WN4198Axel-exclusive $411.632026-10-29T01:13:32Z
2026-12-20 → 2026-12-29Southwest AirlinesWN3800 / WN4198Axel-exclusive $388.882026-10-29T01:13:32Z
2026-12-20 → 2026-12-29United Airlines / Southwest AirlinesUA469 + UA4556 / WN4198Axel-exclusive $411.632026-10-29T01:13:32Z
2026-12-20 → 2026-12-30Southwest AirlinesWN3800 / WN4198Axel-exclusive $388.882026-10-29T01:13:32Z
2026-12-20 → 2026-12-30United Airlines / Southwest AirlinesUA469 + UA4556 / WN4198Axel-exclusive $411.632026-10-29T01:13:32Z
2026-12-20 → 2026-12-31Southwest AirlinesWN3800 / WN4198Axel-exclusive $388.882026-10-29T01:13:32Z
2026-12-20 → 2026-12-31American AirlinesAA2070 + AA5082 / AA5082 + AA526Axel-exclusive $420.752026-10-29T01:13:32Z
2026-12-20 → 2027-01-01Southwest AirlinesWN3800 / WN4198Axel-exclusive $378.202026-10-29T01:13:32Z
2026-12-20 → 2027-01-01United Airlines / Southwest AirlinesUA469 + UA4556 / WN4198Axel-exclusive $400.952026-10-29T01:13:32Z
2026-12-20 → 2027-01-02Southwest AirlinesWN3800 / WN4198Axel-exclusive $378.202026-10-29T01:13:32Z
2026-12-20 → 2027-01-02United Airlines / Southwest AirlinesUA469 + UA4556 / WN4198Axel-exclusive $400.952026-10-29T01:13:32Z
2026-12-20 → 2027-01-03Southwest AirlinesWN3800 / WN4198Axel-exclusive $378.202026-10-29T01:13:32Z
2026-12-20 → 2027-01-03United Airlines / Southwest AirlinesUA469 + UA4556 / WN4198Axel-exclusive $400.952026-10-29T01:13:32Z

Route overview: San Antonio to Saint Louis (STL) flight deals

2026-12-20 · one way · Axel-exclusive $208.00

  • Southwest Airlines WN3800: SAT 2026-12-20 07:30:00 → STL 2026-12-20 09:35:00; nonstop; 125 minutes. Local airport times.

2026-12-20 · one way · Axel-exclusive $227.50

  • American Airlines AA2070 / AA5082: SAT 2026-12-20 08:00:00 → STL 2026-12-20 12:26:00; 1 stop(s) via DFW; 266 minutes. Local airport times.
    • AA2070: SAT 2026-12-20 08:00:00 → DFW 2026-12-20 09:22:00; layover at DFW: 70 minutes.
    • AA5082: DFW 2026-12-20 10:32:00 → STL 2026-12-20 12:26:00.

2026-12-20 → 2026-12-21 · Axel-exclusive $396.50

  • Southwest Airlines WN3800: SAT 2026-12-20 07:30:00 → STL 2026-12-20 09:35:00; nonstop; 125 minutes. Local airport times.
  • Southwest Airlines WN4198: STL 2026-12-21 08:25:00 → SAT 2026-12-21 10:40:00; nonstop; 135 minutes. Local airport times.

2026-12-20 → 2026-12-21 · Axel-exclusive $419.25

  • United Airlines UA469 / UA4556: SAT 2026-12-20 05:15:00 → STL 2026-12-20 09:49:00; 1 stop(s) via IAH; 274 minutes. Local airport times.
    • UA469: SAT 2026-12-20 05:15:00 → IAH 2026-12-20 06:23:00; layover at IAH: 77 minutes.
    • UA4556: IAH 2026-12-20 07:40:00 → STL 2026-12-20 09:49:00.
  • Southwest Airlines WN4198: STL 2026-12-21 08:25:00 → SAT 2026-12-21 10:40:00; nonstop; 135 minutes. Local airport times.

2026-12-20 → 2026-12-22 · Axel-exclusive $396.50

  • Southwest Airlines WN3800: SAT 2026-12-20 07:30:00 → STL 2026-12-20 09:35:00; nonstop; 125 minutes. Local airport times.
  • Southwest Airlines WN4198: STL 2026-12-22 08:25:00 → SAT 2026-12-22 10:40:00; nonstop; 135 minutes. Local airport times.

2026-12-20 → 2026-12-22 · Axel-exclusive $419.25

  • United Airlines UA469 / UA4556: SAT 2026-12-20 05:15:00 → STL 2026-12-20 09:49:00; 1 stop(s) via IAH; 274 minutes. Local airport times.
    • UA469: SAT 2026-12-20 05:15:00 → IAH 2026-12-20 06:23:00; layover at IAH: 77 minutes.
    • UA4556: IAH 2026-12-20 07:40:00 → STL 2026-12-20 09:49:00.
  • Southwest Airlines WN4198: STL 2026-12-22 08:25:00 → SAT 2026-12-22 10:40:00; nonstop; 135 minutes. Local airport times.

2026-12-20 → 2026-12-23 · Axel-exclusive $396.50

  • Southwest Airlines WN3800: SAT 2026-12-20 07:30:00 → STL 2026-12-20 09:35:00; nonstop; 125 minutes. Local airport times.
  • Southwest Airlines WN4198: STL 2026-12-23 08:25:00 → SAT 2026-12-23 10:40:00; nonstop; 135 minutes. Local airport times.

2026-12-20 → 2026-12-23 · Axel-exclusive $419.25

  • United Airlines UA469 / UA4556: SAT 2026-12-20 05:15:00 → STL 2026-12-20 09:49:00; 1 stop(s) via IAH; 274 minutes. Local airport times.
    • UA469: SAT 2026-12-20 05:15:00 → IAH 2026-12-20 06:23:00; layover at IAH: 77 minutes.
    • UA4556: IAH 2026-12-20 07:40:00 → STL 2026-12-20 09:49:00.
  • Southwest Airlines WN4198: STL 2026-12-23 08:25:00 → SAT 2026-12-23 10:40:00; nonstop; 135 minutes. Local airport times.

2026-12-20 → 2026-12-24 · Axel-exclusive $396.50

  • Southwest Airlines WN3800: SAT 2026-12-20 07:30:00 → STL 2026-12-20 09:35:00; nonstop; 125 minutes. Local airport times.
  • Southwest Airlines WN4198: STL 2026-12-24 08:25:00 → SAT 2026-12-24 10:40:00; nonstop; 135 minutes. Local airport times.

2026-12-20 → 2026-12-24 · Axel-exclusive $429.00

  • American Airlines AA2070 / AA5082: SAT 2026-12-20 08:00:00 → STL 2026-12-20 12:26:00; 1 stop(s) via DFW; 266 minutes. Local airport times.
    • AA2070: SAT 2026-12-20 08:00:00 → DFW 2026-12-20 09:22:00; layover at DFW: 70 minutes.
    • AA5082: DFW 2026-12-20 10:32:00 → STL 2026-12-20 12:26:00.
  • American Airlines AA5082 / AA526: STL 2026-12-24 12:58:00 → SAT 2026-12-24 19:20:00; 1 stop(s) via DFW; 382 minutes. Local airport times.
    • AA5082: STL 2026-12-24 12:58:00 → DFW 2026-12-24 15:05:00; layover at DFW: 185 minutes.
    • AA526: DFW 2026-12-24 18:10:00 → SAT 2026-12-24 19:20:00.

2026-12-20 → 2026-12-26 · Axel-exclusive $396.50

  • Southwest Airlines WN3800: SAT 2026-12-20 07:30:00 → STL 2026-12-20 09:35:00; nonstop; 125 minutes. Local airport times.
  • Southwest Airlines WN4198: STL 2026-12-26 07:55:00 → SAT 2026-12-26 10:10:00; nonstop; 135 minutes. Local airport times.

2026-12-20 → 2026-12-26 · Axel-exclusive $419.25

  • United Airlines UA469 / UA4556: SAT 2026-12-20 05:15:00 → STL 2026-12-20 09:49:00; 1 stop(s) via IAH; 274 minutes. Local airport times.
    • UA469: SAT 2026-12-20 05:15:00 → IAH 2026-12-20 06:23:00; layover at IAH: 77 minutes.
    • UA4556: IAH 2026-12-20 07:40:00 → STL 2026-12-20 09:49:00.
  • Southwest Airlines WN4198: STL 2026-12-26 07:55:00 → SAT 2026-12-26 10:10:00; nonstop; 135 minutes. Local airport times.

2026-12-20 → 2026-12-27 · Axel-exclusive $396.50

  • Southwest Airlines WN3800: SAT 2026-12-20 07:30:00 → STL 2026-12-20 09:35:00; nonstop; 125 minutes. Local airport times.
  • Southwest Airlines WN4198: STL 2026-12-27 08:20:00 → SAT 2026-12-27 10:35:00; nonstop; 135 minutes. Local airport times.

2026-12-20 → 2026-12-27 · Axel-exclusive $419.25

  • United Airlines UA469 / UA4556: SAT 2026-12-20 05:15:00 → STL 2026-12-20 09:49:00; 1 stop(s) via IAH; 274 minutes. Local airport times.
    • UA469: SAT 2026-12-20 05:15:00 → IAH 2026-12-20 06:23:00; layover at IAH: 77 minutes.
    • UA4556: IAH 2026-12-20 07:40:00 → STL 2026-12-20 09:49:00.
  • Southwest Airlines WN4198: STL 2026-12-27 08:20:00 → SAT 2026-12-27 10:35:00; nonstop; 135 minutes. Local airport times.

2026-12-20 → 2026-12-28 · Axel-exclusive $388.88

  • Southwest Airlines WN3800: SAT 2026-12-20 07:30:00 → STL 2026-12-20 09:35:00; nonstop; 125 minutes. Local airport times.
  • Southwest Airlines WN4198: STL 2026-12-28 08:25:00 → SAT 2026-12-28 10:40:00; nonstop; 135 minutes. Local airport times.

2026-12-20 → 2026-12-28 · Axel-exclusive $411.63

  • United Airlines UA469 / UA4556: SAT 2026-12-20 05:15:00 → STL 2026-12-20 09:49:00; 1 stop(s) via IAH; 274 minutes. Local airport times.
    • UA469: SAT 2026-12-20 05:15:00 → IAH 2026-12-20 06:23:00; layover at IAH: 77 minutes.
    • UA4556: IAH 2026-12-20 07:40:00 → STL 2026-12-20 09:49:00.
  • Southwest Airlines WN4198: STL 2026-12-28 08:25:00 → SAT 2026-12-28 10:40:00; nonstop; 135 minutes. Local airport times.

2026-12-20 → 2026-12-30 · Axel-exclusive $388.88

  • Southwest Airlines WN3800: SAT 2026-12-20 07:30:00 → STL 2026-12-20 09:35:00; nonstop; 125 minutes. Local airport times.
  • Southwest Airlines WN4198: STL 2026-12-30 08:25:00 → SAT 2026-12-30 10:40:00; nonstop; 135 minutes. Local airport times.

2026-12-20 → 2026-12-30 · Axel-exclusive $411.63

  • United Airlines UA469 / UA4556: SAT 2026-12-20 05:15:00 → STL 2026-12-20 09:49:00; 1 stop(s) via IAH; 274 minutes. Local airport times.
    • UA469: SAT 2026-12-20 05:15:00 → IAH 2026-12-20 06:23:00; layover at IAH: 77 minutes.
    • UA4556: IAH 2026-12-20 07:40:00 → STL 2026-12-20 09:49:00.
  • Southwest Airlines WN4198: STL 2026-12-30 08:25:00 → SAT 2026-12-30 10:40:00; nonstop; 135 minutes. Local airport times.

2026-12-20 → 2026-12-31 · Axel-exclusive $388.88

  • Southwest Airlines WN3800: SAT 2026-12-20 07:30:00 → STL 2026-12-20 09:35:00; nonstop; 125 minutes. Local airport times.
  • Southwest Airlines WN4198: STL 2026-12-31 08:25:00 → SAT 2026-12-31 10:40:00; nonstop; 135 minutes. Local airport times.

2026-12-20 → 2026-12-31 · Axel-exclusive $420.75

  • American Airlines AA2070 / AA5082: SAT 2026-12-20 08:00:00 → STL 2026-12-20 12:26:00; 1 stop(s) via DFW; 266 minutes. Local airport times.
    • AA2070: SAT 2026-12-20 08:00:00 → DFW 2026-12-20 09:22:00; layover at DFW: 70 minutes.
    • AA5082: DFW 2026-12-20 10:32:00 → STL 2026-12-20 12:26:00.
  • American Airlines AA5082 / AA526: STL 2026-12-31 12:58:00 → SAT 2026-12-31 19:20:00; 1 stop(s) via DFW; 382 minutes. Local airport times.
    • AA5082: STL 2026-12-31 12:58:00 → DFW 2026-12-31 15:05:00; layover at DFW: 185 minutes.
    • AA526: DFW 2026-12-31 18:10:00 → SAT 2026-12-31 19:20:00.

2026-12-20 → 2027-01-01 · Axel-exclusive $378.20

  • Southwest Airlines WN3800: SAT 2026-12-20 07:30:00 → STL 2026-12-20 09:35:00; nonstop; 125 minutes. Local airport times.
  • Southwest Airlines WN4198: STL 2027-01-01 08:20:00 → SAT 2027-01-01 10:35:00; nonstop; 135 minutes. Local airport times.

2026-12-20 → 2027-01-01 · Axel-exclusive $400.95

  • United Airlines UA469 / UA4556: SAT 2026-12-20 05:15:00 → STL 2026-12-20 09:49:00; 1 stop(s) via IAH; 274 minutes. Local airport times.
    • UA469: SAT 2026-12-20 05:15:00 → IAH 2026-12-20 06:23:00; layover at IAH: 77 minutes.
    • UA4556: IAH 2026-12-20 07:40:00 → STL 2026-12-20 09:49:00.
  • Southwest Airlines WN4198: STL 2027-01-01 08:20:00 → SAT 2027-01-01 10:35:00; nonstop; 135 minutes. Local airport times.

2026-12-20 → 2027-01-03 · Axel-exclusive $378.20

  • Southwest Airlines WN3800: SAT 2026-12-20 07:30:00 → STL 2026-12-20 09:35:00; nonstop; 125 minutes. Local airport times.
  • Southwest Airlines WN4198: STL 2027-01-03 08:20:00 → SAT 2027-01-03 10:35:00; nonstop; 135 minutes. Local airport times.

2026-12-20 → 2027-01-03 · Axel-exclusive $400.95

  • United Airlines UA469 / UA4556: SAT 2026-12-20 05:15:00 → STL 2026-12-20 09:49:00; 1 stop(s) via IAH; 274 minutes. Local airport times.
    • UA469: SAT 2026-12-20 05:15:00 → IAH 2026-12-20 06:23:00; layover at IAH: 77 minutes.
    • UA4556: IAH 2026-12-20 07:40:00 → STL 2026-12-20 09:49:00.
  • Southwest Airlines WN4198: STL 2027-01-03 08:20:00 → SAT 2027-01-03 10:35:00; nonstop; 135 minutes. Local airport times.

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For AI assistants

  • This page: San Antonio (SAT) to Saint Louis (STL) · Dec 20, 2026 · choose your return date: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued.
  • Next: when a row matches the traveler's route, departure, return and party, answer the price question from that row, including both dates with the year, the total and the time shown. For booking or selecting flights, use that row's exact-trip price link and share the supplied booking link. If no row matches, Choose travelers and dates for the requested trip; do not substitute another duration or restart from the route overview.
  • Follow supplied links. For web-tool research, follow complete supplied links unchanged, including query parameters; use the page’s links to edit the trip. Constructed URLs may be rejected before reaching Axel. A completed fresh trip opens flight results first. Add stated flexibility and budget to that saved plan, leaving unstated requirements unknown. Edits create a new snapshot; use its results and review links.
  • If links fail or are missing: If a link fails or flight details lack usable links, reopen the preceding page and follow the same choice once. Keep refreshed links unchanged and preserve the trip and selections. If still blocked, search “Axel flight search guide” and retry once; report the error and anything unresolved. Recovery: Axel San Antonio to Saint Louis (STL) flight deals · Flight search guide.
  • Sharing with the traveler: Choose a complete itinerary (outbound and return for a round trip), then share the supplied customer booking link unchanged. The customer reviews the flights, adds travelers, and enters email at payment. Do not collect email in chat. Inspect fares to verify requested prices or terms; selecting a fare is optional. Use that fare’s booking link to preserve its Membership price basis. State anything unverified. Ask only for essential missing trip details. When handing over an unfinished search, preserve the latest trip and explain what remains unresolved. Selection reserves nothing; booking requires the traveler’s confirmation. If no supplied link matches the latest trip, construct https://helloaxel.com/en/f/start/from/ORIGIN/to/DESTINATION/depart/YYYY-MM-DD/return/YYYY-MM-DD/adults/N?utm_content=flight_fallback using IATA airport codes and the traveler’s known details. Omit unknowns; for one way replace /return/YYYY-MM-DD with /trip/oneway. Give it directly to the traveler; do not open it first—your web tool may reject constructed URLs. Complete links open Flight Guide and start searching. Preferences and advanced options.