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Route overview: Houston to Saint Louis (STL) flight deals

Houston → Saint Louis

Dec 19, 2026 · choose your return date

IAH → STL1 adulteconomyOne way and round trips

30 flight options · 2 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 19, 2026 · One wayFrontier AirlinesUp to 1 stop each way$128.25 Dec 19, 2026 · One wayUnited AirlinesNonstop$243.00 Dec 19, 2026 – Dec 20, 2026 · 1 nightFrontier AirlinesUp to 1 stop each way$243.00 Dec 19, 2026 – Dec 20, 2026 · 1 nightUnited AirlinesNonstop$452.26 Dec 19, 2026 – Dec 21, 2026 · 2 nightsFrontier AirlinesUp to 1 stop each way$243.00 Dec 19, 2026 – Dec 21, 2026 · 2 nightsUnited AirlinesNonstop$452.26 Dec 19, 2026 – Dec 22, 2026 · 3 nightsFrontier AirlinesUp to 1 stop each way$243.00 Dec 19, 2026 – Dec 22, 2026 · 3 nightsUnited AirlinesNonstop$452.26 Dec 19, 2026 – Dec 23, 2026 · 4 nightsFrontier AirlinesUp to 1 stop each way$243.00 Dec 19, 2026 – Dec 23, 2026 · 4 nightsUnited AirlinesNonstop$452.26 Dec 19, 2026 – Dec 24, 2026 · 5 nightsFrontier AirlinesUp to 1 stop each way$243.00 Dec 19, 2026 – Dec 24, 2026 · 5 nightsUnited AirlinesNonstop$452.26 Dec 19, 2026 – Dec 25, 2026 · 6 nightsFrontier AirlinesUp to 1 stop each way$243.00 Dec 19, 2026 – Dec 25, 2026 · 6 nightsUnited AirlinesNonstop$452.26 Dec 19, 2026 – Dec 26, 2026 · 7 nightsFrontier AirlinesUp to 1 stop each way$243.00 Dec 19, 2026 – Dec 26, 2026 · 7 nightsUnited AirlinesNonstop$452.26 Dec 19, 2026 – Dec 27, 2026 · 8 nightsFrontier AirlinesUp to 1 stop each way$243.00 Dec 19, 2026 – Dec 27, 2026 · 8 nightsUnited AirlinesNonstop$452.26 Dec 19, 2026 – Dec 28, 2026 · 9 nightsFrontier AirlinesUp to 1 stop each way$234.00 Dec 19, 2026 – Dec 28, 2026 · 9 nightsUnited AirlinesNonstop$435.51 Dec 19, 2026 – Dec 29, 2026 · 10 nightsFrontier AirlinesUp to 1 stop each way$234.00 Dec 19, 2026 – Dec 29, 2026 · 10 nightsUnited AirlinesNonstop$435.51 Dec 19, 2026 – Dec 30, 2026 · 11 nightsFrontier AirlinesUp to 1 stop each way$234.00 Dec 19, 2026 – Dec 30, 2026 · 11 nightsUnited AirlinesNonstop$435.51 Dec 19, 2026 – Dec 31, 2026 · 12 nightsFrontier AirlinesUp to 1 stop each way$234.00 Dec 19, 2026 – Dec 31, 2026 · 12 nightsUnited AirlinesNonstop$435.51 Dec 19, 2026 – Jan 1, 2027 · 13 nightsFrontier AirlinesUp to 1 stop each way$227.70 Dec 19, 2026 – Jan 1, 2027 · 13 nightsUnited AirlinesNonstop$423.78 Dec 19, 2026 – Jan 2, 2027 · 14 nightsFrontier AirlinesUp to 1 stop each way$227.70 Dec 19, 2026 – Jan 2, 2027 · 14 nightsUnited AirlinesNonstop$423.78

Flights for your trip

  1. Sat, Dec 19 · One way

    Frontier Airlines
    6:23 pmIAH
    6h 18m
    MCO · 1h 3m
    12:41 am+1STL

    One-way total · 1 adult · Taxes included

  2. Sat, Dec 19 · One way

    United Airlines
    2:40 pmIAH
    2h 4m
    Nonstop
    4:44 pmSTL

    One-way total · 1 adult · Taxes included

  3. Sat, Dec 19 – Sun, Dec 20

    Frontier Airlines
    6:23 pmIAH
    6h 18m
    MCO · 1h 3m
    12:41 am+1STL
    Frontier Airlines
    6:21 pmSTL
    6h 5m
    ATL · 1h 43m
    12:26 am+1IAH

    Round-trip total · 1 adult · Taxes included

  4. Sat, Dec 19 – Sun, Dec 20

    United Airlines
    2:40 pmIAH
    2h 4m
    Nonstop
    4:44 pmSTL
    United Airlines
    6:15 amSTL
    2h 23m
    Nonstop
    8:38 amIAH

    Round-trip total · 1 adult · Taxes included

  5. Sat, Dec 19 – Mon, Dec 21

    Frontier Airlines
    6:23 pmIAH
    6h 18m
    MCO · 1h 3m
    12:41 am+1STL
    Frontier Airlines
    6:21 pmSTL
    6h 5m
    ATL · 1h 43m
    12:26 am+1IAH

    Round-trip total · 1 adult · Taxes included

  6. Sat, Dec 19 – Mon, Dec 21

    United Airlines
    2:40 pmIAH
    2h 4m
    Nonstop
    4:44 pmSTL
    United Airlines
    6:15 amSTL
    2h 23m
    Nonstop
    8:38 amIAH

    Round-trip total · 1 adult · Taxes included

  7. Sat, Dec 19 – Tue, Dec 22

    Frontier Airlines
    6:23 pmIAH
    6h 18m
    MCO · 1h 3m
    12:41 am+1STL
    Frontier Airlines
    6:21 pmSTL
    6h 5m
    ATL · 1h 43m
    12:26 am+1IAH

    Round-trip total · 1 adult · Taxes included

  8. Sat, Dec 19 – Tue, Dec 22

    United Airlines
    2:40 pmIAH
    2h 4m
    Nonstop
    4:44 pmSTL
    United Airlines
    6:15 amSTL
    2h 20m
    Nonstop
    8:35 amIAH

    Round-trip total · 1 adult · Taxes included

  9. Sat, Dec 19 – Wed, Dec 23

    Frontier Airlines
    6:23 pmIAH
    6h 18m
    MCO · 1h 3m
    12:41 am+1STL
    Frontier Airlines
    6:21 pmSTL
    6h 5m
    ATL · 1h 43m
    12:26 am+1IAH

    Round-trip total · 1 adult · Taxes included

  10. Sat, Dec 19 – Wed, Dec 23

    United Airlines
    2:40 pmIAH
    2h 4m
    Nonstop
    4:44 pmSTL
    United Airlines
    6:00 amSTL
    2h 21m
    Nonstop
    8:21 amIAH

    Round-trip total · 1 adult · Taxes included

  11. Sat, Dec 19 – Fri, Dec 25

    Frontier Airlines
    6:23 pmIAH
    6h 18m
    MCO · 1h 3m
    12:41 am+1STL
    Frontier Airlines
    6:21 pmSTL
    6h 5m
    ATL · 1h 43m
    12:26 am+1IAH

    Round-trip total · 1 adult · Taxes included

  12. Sat, Dec 19 – Fri, Dec 25

    United Airlines
    2:40 pmIAH
    2h 4m
    Nonstop
    4:44 pmSTL
    United Airlines
    6:15 amSTL
    2h 20m
    Nonstop
    8:35 amIAH

    Round-trip total · 1 adult · Taxes included

  13. Sat, Dec 19 – Sat, Dec 26

    Frontier Airlines
    6:23 pmIAH
    6h 18m
    MCO · 1h 3m
    12:41 am+1STL
    Frontier Airlines
    6:21 pmSTL
    6h 5m
    ATL · 1h 43m
    12:26 am+1IAH

    Round-trip total · 1 adult · Taxes included

  14. Sat, Dec 19 – Sat, Dec 26

    United Airlines
    2:40 pmIAH
    2h 4m
    Nonstop
    4:44 pmSTL
    United Airlines
    6:15 amSTL
    2h 20m
    Nonstop
    8:35 amIAH

    Round-trip total · 1 adult · Taxes included

  15. Sat, Dec 19 – Sun, Dec 27

    Frontier Airlines
    6:23 pmIAH
    6h 18m
    MCO · 1h 3m
    12:41 am+1STL
    Frontier Airlines
    6:21 pmSTL
    6h 5m
    ATL · 1h 43m
    12:26 am+1IAH

    Round-trip total · 1 adult · Taxes included

  16. Sat, Dec 19 – Sun, Dec 27

    United Airlines
    2:40 pmIAH
    2h 4m
    Nonstop
    4:44 pmSTL
    United Airlines
    6:15 amSTL
    2h 23m
    Nonstop
    8:38 amIAH

    Round-trip total · 1 adult · Taxes included

  17. Sat, Dec 19 – Tue, Dec 29

    Frontier Airlines
    6:23 pmIAH
    6h 18m
    MCO · 1h 3m
    12:41 am+1STL
    Frontier Airlines
    6:21 pmSTL
    6h 5m
    ATL · 1h 43m
    12:26 am+1IAH

    Round-trip total · 1 adult · Taxes included

  18. Sat, Dec 19 – Tue, Dec 29

    United Airlines
    2:40 pmIAH
    2h 4m
    Nonstop
    4:44 pmSTL
    United Airlines
    6:15 amSTL
    2h 20m
    Nonstop
    8:35 amIAH

    Round-trip total · 1 adult · Taxes included

  19. Sat, Dec 19 – Wed, Dec 30

    Frontier Airlines
    6:23 pmIAH
    6h 18m
    MCO · 1h 3m
    12:41 am+1STL
    Frontier Airlines
    6:21 pmSTL
    6h 5m
    ATL · 1h 43m
    12:26 am+1IAH

    Round-trip total · 1 adult · Taxes included

  20. Sat, Dec 19 – Wed, Dec 30

    United Airlines
    2:40 pmIAH
    2h 4m
    Nonstop
    4:44 pmSTL
    United Airlines
    6:00 amSTL
    2h 21m
    Nonstop
    8:21 amIAH

    Round-trip total · 1 adult · Taxes included

  21. Sat, Dec 19 – Thu, Dec 31

    Frontier Airlines
    6:23 pmIAH
    6h 18m
    MCO · 1h 3m
    12:41 am+1STL
    Frontier Airlines
    6:21 pmSTL
    6h 5m
    ATL · 1h 43m
    12:26 am+1IAH

    Round-trip total · 1 adult · Taxes included

  22. Sat, Dec 19 – Thu, Dec 31

    United Airlines
    2:40 pmIAH
    2h 4m
    Nonstop
    4:44 pmSTL
    United Airlines
    6:00 amSTL
    2h 21m
    Nonstop
    8:21 amIAH

    Round-trip total · 1 adult · Taxes included

  23. Sat, Dec 19 – Sat, Jan 2

    Frontier Airlines
    6:23 pmIAH
    6h 18m
    MCO · 1h 3m
    12:41 am+1STL
    Frontier Airlines
    6:21 pmSTL
    6h 5m
    ATL · 1h 43m
    12:26 am+1IAH

    Round-trip total · 1 adult · Taxes included

  24. Sat, Dec 19 – Sat, Jan 2

    United Airlines
    2:40 pmIAH
    2h 4m
    Nonstop
    4:44 pmSTL
    United Airlines
    6:15 amSTL
    2h 20m
    Nonstop
    8:35 amIAH

    Round-trip total · 1 adult · Taxes included

Swipe to see 23 more recent deals.

1 of 24

Make this trip yours

IAH ⇄ STL

Economy

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Explore this route

All dates for this routeDec 18, 2026 · Return optionsDec 20, 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)
2026-12-19 · one wayUnited AirlinesUA6160Axel-exclusive $243.002026-10-29T01:12:09Z
2026-12-19 · one wayFrontier AirlinesF94978 + F92635Axel-exclusive $128.252026-10-29T01:12:09Z
2026-12-19 → 2026-12-20United AirlinesUA6160 / UA1371Axel-exclusive $452.262026-10-29T01:12:09Z
2026-12-19 → 2026-12-20Frontier AirlinesF94978 + F92635 / F94474 + F94075Axel-exclusive $243.002026-10-29T01:12:09Z
2026-12-19 → 2026-12-21United AirlinesUA6160 / UA1371Axel-exclusive $452.262026-10-29T01:12:09Z
2026-12-19 → 2026-12-21Frontier AirlinesF94978 + F92635 / F94474 + F94075Axel-exclusive $243.002026-10-29T01:12:09Z
2026-12-19 → 2026-12-22United AirlinesUA6160 / UA1371Axel-exclusive $452.262026-10-29T01:12:09Z
2026-12-19 → 2026-12-22Frontier AirlinesF94978 + F92635 / F94474 + F94075Axel-exclusive $243.002026-10-29T01:12:09Z
2026-12-19 → 2026-12-23United AirlinesUA6160 / UA1371Axel-exclusive $452.262026-10-29T01:12:09Z
2026-12-19 → 2026-12-23Frontier AirlinesF94978 + F92635 / F94474 + F94075Axel-exclusive $243.002026-10-29T01:12:09Z
2026-12-19 → 2026-12-24United AirlinesUA6160 / UA1371Axel-exclusive $452.262026-10-29T01:12:09Z
2026-12-19 → 2026-12-24Frontier AirlinesF94978 + F92635 / F94474 + F94075Axel-exclusive $243.002026-10-29T01:12:09Z
2026-12-19 → 2026-12-25United AirlinesUA6160 / UA1371Axel-exclusive $452.262026-10-29T01:12:09Z
2026-12-19 → 2026-12-25Frontier AirlinesF94978 + F92635 / F94474 + F94075Axel-exclusive $243.002026-10-29T01:12:09Z
2026-12-19 → 2026-12-26United AirlinesUA6160 / UA1371Axel-exclusive $452.262026-10-29T01:12:09Z
2026-12-19 → 2026-12-26Frontier AirlinesF94978 + F92635 / F94474 + F94075Axel-exclusive $243.002026-10-29T01:12:09Z
2026-12-19 → 2026-12-27United AirlinesUA6160 / UA1371Axel-exclusive $452.262026-10-29T01:12:09Z
2026-12-19 → 2026-12-27Frontier AirlinesF94978 + F92635 / F94474 + F94075Axel-exclusive $243.002026-10-29T01:12:09Z
2026-12-19 → 2026-12-28United AirlinesUA6160 / UA1371Axel-exclusive $435.512026-10-29T01:12:09Z
2026-12-19 → 2026-12-28Frontier AirlinesF94978 + F92635 / F94474 + F94075Axel-exclusive $234.002026-10-29T01:12:09Z
2026-12-19 → 2026-12-29United AirlinesUA6160 / UA1371Axel-exclusive $435.512026-10-29T01:12:09Z
2026-12-19 → 2026-12-29Frontier AirlinesF94978 + F92635 / F94474 + F94075Axel-exclusive $234.002026-10-29T01:12:09Z
2026-12-19 → 2026-12-30United AirlinesUA6160 / UA1371Axel-exclusive $435.512026-10-29T01:12:09Z
2026-12-19 → 2026-12-30Frontier AirlinesF94978 + F92635 / F94474 + F94075Axel-exclusive $234.002026-10-29T01:12:09Z
2026-12-19 → 2026-12-31United AirlinesUA6160 / UA1371Axel-exclusive $435.512026-10-29T01:12:09Z
2026-12-19 → 2026-12-31Frontier AirlinesF94978 + F92635 / F94474 + F94075Axel-exclusive $234.002026-10-29T01:12:09Z
2026-12-19 → 2027-01-01United AirlinesUA6160 / UA1371Axel-exclusive $423.782026-10-29T01:12:09Z
2026-12-19 → 2027-01-01Frontier AirlinesF94978 + F92635 / F94474 + F94075Axel-exclusive $227.702026-10-29T01:12:09Z
2026-12-19 → 2027-01-02United AirlinesUA6160 / UA1371Axel-exclusive $423.782026-10-29T01:12:09Z
2026-12-19 → 2027-01-02Frontier AirlinesF94978 + F92635 / F94474 + F94075Axel-exclusive $227.702026-10-29T01:12:09Z

Route overview: Houston to Saint Louis (STL) flight deals

2026-12-19 · one way · Axel-exclusive $128.25

  • Frontier Airlines F94978 / F92635: IAH 2026-12-19 18:23:00 → STL 2026-12-20 00:41:00; 1 stop(s) via MCO; 378 minutes. Local airport times.
    • F94978: IAH 2026-12-19 18:23:00 → MCO 2026-12-19 21:56:00; layover at MCO: 63 minutes.
    • F92635: MCO 2026-12-19 22:59:00 → STL 2026-12-20 00:41:00.

2026-12-19 · one way · Axel-exclusive $243.00

  • United Airlines UA6160: IAH 2026-12-19 14:40:00 → STL 2026-12-19 16:44:00; nonstop; 124 minutes. Local airport times.

2026-12-19 → 2026-12-20 · Axel-exclusive $243.00

  • Frontier Airlines F94978 / F92635: IAH 2026-12-19 18:23:00 → STL 2026-12-20 00:41:00; 1 stop(s) via MCO; 378 minutes. Local airport times.
    • F94978: IAH 2026-12-19 18:23:00 → MCO 2026-12-19 21:56:00; layover at MCO: 63 minutes.
    • F92635: MCO 2026-12-19 22:59:00 → STL 2026-12-20 00:41:00.
  • Frontier Airlines F94474 / F94075: STL 2026-12-20 18:21:00 → IAH 2026-12-21 00:26:00; 1 stop(s) via ATL; 365 minutes. Local airport times.
    • F94474: STL 2026-12-20 18:21:00 → ATL 2026-12-20 21:16:00; layover at ATL: 103 minutes.
    • F94075: ATL 2026-12-20 22:59:00 → IAH 2026-12-21 00:26:00.

2026-12-19 → 2026-12-20 · Axel-exclusive $452.26

  • United Airlines UA6160: IAH 2026-12-19 14:40:00 → STL 2026-12-19 16:44:00; nonstop; 124 minutes. Local airport times.
  • United Airlines UA1371: STL 2026-12-20 06:15:00 → IAH 2026-12-20 08:38:00; nonstop; 143 minutes. Local airport times.

2026-12-19 → 2026-12-21 · Axel-exclusive $243.00

  • Frontier Airlines F94978 / F92635: IAH 2026-12-19 18:23:00 → STL 2026-12-20 00:41:00; 1 stop(s) via MCO; 378 minutes. Local airport times.
    • F94978: IAH 2026-12-19 18:23:00 → MCO 2026-12-19 21:56:00; layover at MCO: 63 minutes.
    • F92635: MCO 2026-12-19 22:59:00 → STL 2026-12-20 00:41:00.
  • Frontier Airlines F94474 / F94075: STL 2026-12-21 18:21:00 → IAH 2026-12-22 00:26:00; 1 stop(s) via ATL; 365 minutes. Local airport times.
    • F94474: STL 2026-12-21 18:21:00 → ATL 2026-12-21 21:16:00; layover at ATL: 103 minutes.
    • F94075: ATL 2026-12-21 22:59:00 → IAH 2026-12-22 00:26:00.

2026-12-19 → 2026-12-21 · Axel-exclusive $452.26

  • United Airlines UA6160: IAH 2026-12-19 14:40:00 → STL 2026-12-19 16:44:00; nonstop; 124 minutes. Local airport times.
  • United Airlines UA1371: STL 2026-12-21 06:15:00 → IAH 2026-12-21 08:38:00; nonstop; 143 minutes. Local airport times.

2026-12-19 → 2026-12-22 · Axel-exclusive $243.00

  • Frontier Airlines F94978 / F92635: IAH 2026-12-19 18:23:00 → STL 2026-12-20 00:41:00; 1 stop(s) via MCO; 378 minutes. Local airport times.
    • F94978: IAH 2026-12-19 18:23:00 → MCO 2026-12-19 21:56:00; layover at MCO: 63 minutes.
    • F92635: MCO 2026-12-19 22:59:00 → STL 2026-12-20 00:41:00.
  • Frontier Airlines F94474 / F94075: STL 2026-12-22 18:21:00 → IAH 2026-12-23 00:26:00; 1 stop(s) via ATL; 365 minutes. Local airport times.
    • F94474: STL 2026-12-22 18:21:00 → ATL 2026-12-22 21:16:00; layover at ATL: 103 minutes.
    • F94075: ATL 2026-12-22 22:59:00 → IAH 2026-12-23 00:26:00.

2026-12-19 → 2026-12-22 · Axel-exclusive $452.26

  • United Airlines UA6160: IAH 2026-12-19 14:40:00 → STL 2026-12-19 16:44:00; nonstop; 124 minutes. Local airport times.
  • United Airlines UA1371: STL 2026-12-22 06:15:00 → IAH 2026-12-22 08:35:00; nonstop; 140 minutes. Local airport times.

2026-12-19 → 2026-12-23 · Axel-exclusive $243.00

  • Frontier Airlines F94978 / F92635: IAH 2026-12-19 18:23:00 → STL 2026-12-20 00:41:00; 1 stop(s) via MCO; 378 minutes. Local airport times.
    • F94978: IAH 2026-12-19 18:23:00 → MCO 2026-12-19 21:56:00; layover at MCO: 63 minutes.
    • F92635: MCO 2026-12-19 22:59:00 → STL 2026-12-20 00:41:00.
  • Frontier Airlines F94474 / F94075: STL 2026-12-23 18:21:00 → IAH 2026-12-24 00:26:00; 1 stop(s) via ATL; 365 minutes. Local airport times.
    • F94474: STL 2026-12-23 18:21:00 → ATL 2026-12-23 21:16:00; layover at ATL: 103 minutes.
    • F94075: ATL 2026-12-23 22:59:00 → IAH 2026-12-24 00:26:00.

2026-12-19 → 2026-12-23 · Axel-exclusive $452.26

  • United Airlines UA6160: IAH 2026-12-19 14:40:00 → STL 2026-12-19 16:44:00; nonstop; 124 minutes. Local airport times.
  • United Airlines UA1371: STL 2026-12-23 06:00:00 → IAH 2026-12-23 08:21:00; nonstop; 141 minutes. Local airport times.

2026-12-19 → 2026-12-25 · Axel-exclusive $243.00

  • Frontier Airlines F94978 / F92635: IAH 2026-12-19 18:23:00 → STL 2026-12-20 00:41:00; 1 stop(s) via MCO; 378 minutes. Local airport times.
    • F94978: IAH 2026-12-19 18:23:00 → MCO 2026-12-19 21:56:00; layover at MCO: 63 minutes.
    • F92635: MCO 2026-12-19 22:59:00 → STL 2026-12-20 00:41:00.
  • Frontier Airlines F94474 / F94075: STL 2026-12-25 18:21:00 → IAH 2026-12-26 00:26:00; 1 stop(s) via ATL; 365 minutes. Local airport times.
    • F94474: STL 2026-12-25 18:21:00 → ATL 2026-12-25 21:16:00; layover at ATL: 103 minutes.
    • F94075: ATL 2026-12-25 22:59:00 → IAH 2026-12-26 00:26:00.

2026-12-19 → 2026-12-25 · Axel-exclusive $452.26

  • United Airlines UA6160: IAH 2026-12-19 14:40:00 → STL 2026-12-19 16:44:00; nonstop; 124 minutes. Local airport times.
  • United Airlines UA1371: STL 2026-12-25 06:15:00 → IAH 2026-12-25 08:35:00; nonstop; 140 minutes. Local airport times.

2026-12-19 → 2026-12-26 · Axel-exclusive $243.00

  • Frontier Airlines F94978 / F92635: IAH 2026-12-19 18:23:00 → STL 2026-12-20 00:41:00; 1 stop(s) via MCO; 378 minutes. Local airport times.
    • F94978: IAH 2026-12-19 18:23:00 → MCO 2026-12-19 21:56:00; layover at MCO: 63 minutes.
    • F92635: MCO 2026-12-19 22:59:00 → STL 2026-12-20 00:41:00.
  • Frontier Airlines F94474 / F94075: STL 2026-12-26 18:21:00 → IAH 2026-12-27 00:26:00; 1 stop(s) via ATL; 365 minutes. Local airport times.
    • F94474: STL 2026-12-26 18:21:00 → ATL 2026-12-26 21:16:00; layover at ATL: 103 minutes.
    • F94075: ATL 2026-12-26 22:59:00 → IAH 2026-12-27 00:26:00.

2026-12-19 → 2026-12-26 · Axel-exclusive $452.26

  • United Airlines UA6160: IAH 2026-12-19 14:40:00 → STL 2026-12-19 16:44:00; nonstop; 124 minutes. Local airport times.
  • United Airlines UA1371: STL 2026-12-26 06:15:00 → IAH 2026-12-26 08:35:00; nonstop; 140 minutes. Local airport times.

2026-12-19 → 2026-12-27 · Axel-exclusive $243.00

  • Frontier Airlines F94978 / F92635: IAH 2026-12-19 18:23:00 → STL 2026-12-20 00:41:00; 1 stop(s) via MCO; 378 minutes. Local airport times.
    • F94978: IAH 2026-12-19 18:23:00 → MCO 2026-12-19 21:56:00; layover at MCO: 63 minutes.
    • F92635: MCO 2026-12-19 22:59:00 → STL 2026-12-20 00:41:00.
  • Frontier Airlines F94474 / F94075: STL 2026-12-27 18:21:00 → IAH 2026-12-28 00:26:00; 1 stop(s) via ATL; 365 minutes. Local airport times.
    • F94474: STL 2026-12-27 18:21:00 → ATL 2026-12-27 21:16:00; layover at ATL: 103 minutes.
    • F94075: ATL 2026-12-27 22:59:00 → IAH 2026-12-28 00:26:00.

2026-12-19 → 2026-12-27 · Axel-exclusive $452.26

  • United Airlines UA6160: IAH 2026-12-19 14:40:00 → STL 2026-12-19 16:44:00; nonstop; 124 minutes. Local airport times.
  • United Airlines UA1371: STL 2026-12-27 06:15:00 → IAH 2026-12-27 08:38:00; nonstop; 143 minutes. Local airport times.

2026-12-19 → 2026-12-29 · Axel-exclusive $234.00

  • Frontier Airlines F94978 / F92635: IAH 2026-12-19 18:23:00 → STL 2026-12-20 00:41:00; 1 stop(s) via MCO; 378 minutes. Local airport times.
    • F94978: IAH 2026-12-19 18:23:00 → MCO 2026-12-19 21:56:00; layover at MCO: 63 minutes.
    • F92635: MCO 2026-12-19 22:59:00 → STL 2026-12-20 00:41:00.
  • Frontier Airlines F94474 / F94075: STL 2026-12-29 18:21:00 → IAH 2026-12-30 00:26:00; 1 stop(s) via ATL; 365 minutes. Local airport times.
    • F94474: STL 2026-12-29 18:21:00 → ATL 2026-12-29 21:16:00; layover at ATL: 103 minutes.
    • F94075: ATL 2026-12-29 22:59:00 → IAH 2026-12-30 00:26:00.

2026-12-19 → 2026-12-29 · Axel-exclusive $435.51

  • United Airlines UA6160: IAH 2026-12-19 14:40:00 → STL 2026-12-19 16:44:00; nonstop; 124 minutes. Local airport times.
  • United Airlines UA1371: STL 2026-12-29 06:15:00 → IAH 2026-12-29 08:35:00; nonstop; 140 minutes. Local airport times.

2026-12-19 → 2026-12-30 · Axel-exclusive $234.00

  • Frontier Airlines F94978 / F92635: IAH 2026-12-19 18:23:00 → STL 2026-12-20 00:41:00; 1 stop(s) via MCO; 378 minutes. Local airport times.
    • F94978: IAH 2026-12-19 18:23:00 → MCO 2026-12-19 21:56:00; layover at MCO: 63 minutes.
    • F92635: MCO 2026-12-19 22:59:00 → STL 2026-12-20 00:41:00.
  • Frontier Airlines F94474 / F94075: STL 2026-12-30 18:21:00 → IAH 2026-12-31 00:26:00; 1 stop(s) via ATL; 365 minutes. Local airport times.
    • F94474: STL 2026-12-30 18:21:00 → ATL 2026-12-30 21:16:00; layover at ATL: 103 minutes.
    • F94075: ATL 2026-12-30 22:59:00 → IAH 2026-12-31 00:26:00.

2026-12-19 → 2026-12-30 · Axel-exclusive $435.51

  • United Airlines UA6160: IAH 2026-12-19 14:40:00 → STL 2026-12-19 16:44:00; nonstop; 124 minutes. Local airport times.
  • United Airlines UA1371: STL 2026-12-30 06:00:00 → IAH 2026-12-30 08:21:00; nonstop; 141 minutes. Local airport times.

2026-12-19 → 2026-12-31 · Axel-exclusive $234.00

  • Frontier Airlines F94978 / F92635: IAH 2026-12-19 18:23:00 → STL 2026-12-20 00:41:00; 1 stop(s) via MCO; 378 minutes. Local airport times.
    • F94978: IAH 2026-12-19 18:23:00 → MCO 2026-12-19 21:56:00; layover at MCO: 63 minutes.
    • F92635: MCO 2026-12-19 22:59:00 → STL 2026-12-20 00:41:00.
  • Frontier Airlines F94474 / F94075: STL 2026-12-31 18:21:00 → IAH 2027-01-01 00:26:00; 1 stop(s) via ATL; 365 minutes. Local airport times.
    • F94474: STL 2026-12-31 18:21:00 → ATL 2026-12-31 21:16:00; layover at ATL: 103 minutes.
    • F94075: ATL 2026-12-31 22:59:00 → IAH 2027-01-01 00:26:00.

2026-12-19 → 2026-12-31 · Axel-exclusive $435.51

  • United Airlines UA6160: IAH 2026-12-19 14:40:00 → STL 2026-12-19 16:44:00; nonstop; 124 minutes. Local airport times.
  • United Airlines UA1371: STL 2026-12-31 06:00:00 → IAH 2026-12-31 08:21:00; nonstop; 141 minutes. Local airport times.

2026-12-19 → 2027-01-02 · Axel-exclusive $227.70

  • Frontier Airlines F94978 / F92635: IAH 2026-12-19 18:23:00 → STL 2026-12-20 00:41:00; 1 stop(s) via MCO; 378 minutes. Local airport times.
    • F94978: IAH 2026-12-19 18:23:00 → MCO 2026-12-19 21:56:00; layover at MCO: 63 minutes.
    • F92635: MCO 2026-12-19 22:59:00 → STL 2026-12-20 00:41:00.
  • Frontier Airlines F94474 / F94075: STL 2027-01-02 18:21:00 → IAH 2027-01-03 00:26:00; 1 stop(s) via ATL; 365 minutes. Local airport times.
    • F94474: STL 2027-01-02 18:21:00 → ATL 2027-01-02 21:16:00; layover at ATL: 103 minutes.
    • F94075: ATL 2027-01-02 22:59:00 → IAH 2027-01-03 00:26:00.

2026-12-19 → 2027-01-02 · Axel-exclusive $423.78

  • United Airlines UA6160: IAH 2026-12-19 14:40:00 → STL 2026-12-19 16:44:00; nonstop; 124 minutes. Local airport times.
  • United Airlines UA1371: STL 2027-01-02 06:15:00 → IAH 2027-01-02 08:35:00; nonstop; 140 minutes. Local airport times.

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For AI assistants

  • This page: Houston (IAH) to Saint Louis (STL) · Dec 19, 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 Houston 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.