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Saint Louis → Houston

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STL → IAH1 adulteconomy

12 flight options · 3 airlines

Round-trip flights

Fri, Nov 27 – Fri, Dec 4

United Airlines
2:55 pmSTL
2h 24m
Nonstop
5:19 pmIAH
United Airlines
7:40 amIAH
2h 5m
Nonstop
9:45 amSTL

Round-trip total · 1 adult · Taxes included

Fri, Nov 27 – Fri, Dec 4

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

Round-trip total · 1 adult · Taxes included

Fri, Nov 27 – Fri, Dec 4

American Airlines
12:58 pmSTL
4h 59m
DFW · 1h 35m
5:57 pmIAH
American Airlines
6:00 amIAH
6h 26m
DFW · 2h 59m
12:26 pmSTL

Round-trip total · 1 adult · Taxes included

Fri, Nov 20 – Mon, Nov 23

United Airlines
2:55 pmSTL
2h 24m
Nonstop
5:19 pmIAH
United Airlines
8:20 pmIAH
2h 6m
Nonstop
10:26 pmSTL

Round-trip total · 1 adult · Taxes included

Fri, Nov 27 – Fri, Dec 4

United Airlines
6:15 amSTL
2h 20m
Nonstop
8:35 amIAH
United Airlines
7:40 amIAH
2h 5m
Nonstop
9:45 amSTL

Round-trip total · 1 adult · Taxes included

Fri, Nov 20 – Mon, Nov 23

United Airlines
6:15 amSTL
2h 20m
Nonstop
8:35 amIAH
United Airlines
8:20 pmIAH
2h 6m
Nonstop
10:26 pmSTL

Round-trip total · 1 adult · Taxes included

Fri, Nov 20 – Mon, Nov 23

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

Round-trip total · 1 adult · Taxes included

Fri, Nov 20 – Mon, Nov 23

American Airlines
12:58 pmSTL
4h 59m
DFW · 1h 35m
5:57 pmIAH
American Airlines
6:00 amIAH
6h 26m
DFW · 2h 59m
12:26 pmSTL

Round-trip total · 1 adult · Taxes included

One-way flights

Fri, Nov 20 · One way

United Airlines
2:55 pmSTL
2h 24m
Nonstop
5:19 pmIAH

One-way total · 1 adult · Taxes included

Fri, Nov 20 · One way

Frontier Airlines
6:21 pmSTL
6h 5m
ATL · 1h 43m
12:26 am+1IAH

One-way total · 1 adult · Taxes included

Fri, Nov 20 · One way

American Airlines
12:58 pmSTL
4h 59m
DFW · 1h 35m
5:57 pmIAH

One-way total · 1 adult · Taxes included

Fri, Nov 20 · One way

United Airlines
6:15 amSTL
2h 20m
Nonstop
8:35 amIAH

One-way total · 1 adult · Taxes included

Make this trip yours

STL ⇄ IAH

Economy

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

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Why book with Axel
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  • Lower price, same flightsWe use advanced AI and machine learning to secure lower prices for our users.
  • 24-hour cancellationCancel within 24 hours of booking for a full refund when your departure is at least 7 days away. Closer to departure, the airline’s fare rules apply. Cancellation policy
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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 wayUnited AirlinesUA4075$249.752026-10-29T01:28:37Z
2026-11-27 → 2026-12-04United AirlinesUA4075 / UA6214$411.252026-10-29T01:28:37Z
2026-11-20 · one wayFrontier AirlinesF94474 + F94075$141.752026-10-29T01:28:37Z
2026-11-20 · one wayAmerican AirlinesAA5082 + AA2881$222.752026-10-29T01:28:37Z
2026-11-27 → 2026-12-04Frontier AirlinesF94474 + F94075 / F94978 + F92635$229.132026-10-29T01:28:37Z
2026-11-27 → 2026-12-04American AirlinesAA5082 + AA2881 / AA2551 + AA5082$364.252026-10-29T01:28:37Z
2026-11-20 → 2026-11-23United AirlinesUA4075 / UA2804$472.502026-10-29T01:28:37Z
2026-11-20 · one wayUnited AirlinesUA1371$249.752026-10-29T01:28:37Z
2026-11-27 → 2026-12-04United AirlinesUA1371 / UA6214$411.252026-10-29T01:28:37Z
2026-11-20 → 2026-11-23United AirlinesUA1371 / UA2804$472.502026-10-29T01:28:37Z
2026-11-20 → 2026-11-23Frontier AirlinesF94474 + F94075 / F94978 + F92635$263.262026-10-29T01:28:37Z
2026-11-20 → 2026-11-23American AirlinesAA5082 + AA2881 / AA2551 + AA5082$418.502026-10-29T01:28:37Z

2026-11-20 · one way · $249.75

  • United Airlines UA4075: STL 2026-11-20 14:55:00 → IAH 2026-11-20 17:19:00; nonstop; 144 minutes. Local airport times.

2026-11-27 → 2026-12-04 · $411.25

  • United Airlines UA4075: STL 2026-11-27 14:55:00 → IAH 2026-11-27 17:19:00; nonstop; 144 minutes. Local airport times.
  • United Airlines UA6214: IAH 2026-12-04 07:40:00 → STL 2026-12-04 09:45:00; nonstop; 125 minutes. Local airport times.

2026-11-20 · one way · $141.75

  • Frontier Airlines F94474 / F94075: STL 2026-11-20 18:21:00 → IAH 2026-11-21 00:26:00; 1 stop(s) via ATL; 365 minutes. Local airport times.
    • F94474: STL 2026-11-20 18:21:00 → ATL 2026-11-20 21:16:00; layover at ATL: 103 minutes.
    • F94075: ATL 2026-11-20 22:59:00 → IAH 2026-11-21 00:26:00.

2026-11-20 · one way · $222.75

  • American Airlines AA5082 / AA2881: STL 2026-11-20 12:58:00 → IAH 2026-11-20 17:57:00; 1 stop(s) via DFW; 299 minutes. Local airport times.
    • AA5082: STL 2026-11-20 12:58:00 → DFW 2026-11-20 15:05:00; layover at DFW: 95 minutes.
    • AA2881: DFW 2026-11-20 16:40:00 → IAH 2026-11-20 17:57:00.

2026-11-27 → 2026-12-04 · $229.13

  • Frontier Airlines F94474 / F94075: STL 2026-11-27 18:21:00 → IAH 2026-11-28 00:26:00; 1 stop(s) via ATL; 365 minutes. Local airport times.
    • F94474: STL 2026-11-27 18:21:00 → ATL 2026-11-27 21:16:00; layover at ATL: 103 minutes.
    • F94075: ATL 2026-11-27 22:59:00 → IAH 2026-11-28 00:26:00.
  • Frontier Airlines F94978 / F92635: IAH 2026-12-04 18:23:00 → STL 2026-12-05 00:41:00; 1 stop(s) via MCO; 378 minutes. Local airport times.
    • F94978: IAH 2026-12-04 18:23:00 → MCO 2026-12-04 21:56:00; layover at MCO: 63 minutes.
    • F92635: MCO 2026-12-04 22:59:00 → STL 2026-12-05 00:41:00.

2026-11-27 → 2026-12-04 · $364.25

  • American Airlines AA5082 / AA2881: STL 2026-11-27 12:58:00 → IAH 2026-11-27 17:57:00; 1 stop(s) via DFW; 299 minutes. Local airport times.
    • AA5082: STL 2026-11-27 12:58:00 → DFW 2026-11-27 15:05:00; layover at DFW: 95 minutes.
    • AA2881: DFW 2026-11-27 16:40:00 → IAH 2026-11-27 17:57:00.
  • American Airlines AA2551 / AA5082: IAH 2026-12-04 06:00:00 → STL 2026-12-04 12:26:00; 1 stop(s) via DFW; 386 minutes. Local airport times.
    • AA2551: IAH 2026-12-04 06:00:00 → DFW 2026-12-04 07:33:00; layover at DFW: 179 minutes.
    • AA5082: DFW 2026-12-04 10:32:00 → STL 2026-12-04 12:26:00.

2026-11-20 → 2026-11-23 · $472.50

  • United Airlines UA4075: STL 2026-11-20 14:55:00 → IAH 2026-11-20 17:19:00; nonstop; 144 minutes. Local airport times.
  • United Airlines UA2804: IAH 2026-11-23 20:20:00 → STL 2026-11-23 22:26:00; nonstop; 126 minutes. Local airport times.

2026-11-20 · one way · $249.75

  • United Airlines UA1371: STL 2026-11-20 06:15:00 → IAH 2026-11-20 08:35:00; nonstop; 140 minutes. Local airport times.

2026-11-27 → 2026-12-04 · $411.25

  • United Airlines UA1371: STL 2026-11-27 06:15:00 → IAH 2026-11-27 08:35:00; nonstop; 140 minutes. Local airport times.
  • United Airlines UA6214: IAH 2026-12-04 07:40:00 → STL 2026-12-04 09:45:00; nonstop; 125 minutes. Local airport times.

2026-11-20 → 2026-11-23 · $472.50

  • United Airlines UA1371: STL 2026-11-20 06:15:00 → IAH 2026-11-20 08:35:00; nonstop; 140 minutes. Local airport times.
  • United Airlines UA2804: IAH 2026-11-23 20:20:00 → STL 2026-11-23 22:26:00; nonstop; 126 minutes. Local airport times.

2026-11-20 → 2026-11-23 · $263.26

  • Frontier Airlines F94474 / F94075: STL 2026-11-20 18:21:00 → IAH 2026-11-21 00:26:00; 1 stop(s) via ATL; 365 minutes. Local airport times.
    • F94474: STL 2026-11-20 18:21:00 → ATL 2026-11-20 21:16:00; layover at ATL: 103 minutes.
    • F94075: ATL 2026-11-20 22:59:00 → IAH 2026-11-21 00:26:00.
  • Frontier Airlines F94978 / F92635: IAH 2026-11-23 18:23:00 → STL 2026-11-24 00:41:00; 1 stop(s) via MCO; 378 minutes. Local airport times.
    • F94978: IAH 2026-11-23 18:23:00 → MCO 2026-11-23 21:56:00; layover at MCO: 63 minutes.
    • F92635: MCO 2026-11-23 22:59:00 → STL 2026-11-24 00:41:00.

2026-11-20 → 2026-11-23 · $418.50

  • American Airlines AA5082 / AA2881: STL 2026-11-20 12:58:00 → IAH 2026-11-20 17:57:00; 1 stop(s) via DFW; 299 minutes. Local airport times.
    • AA5082: STL 2026-11-20 12:58:00 → DFW 2026-11-20 15:05:00; layover at DFW: 95 minutes.
    • AA2881: DFW 2026-11-20 16:40:00 → IAH 2026-11-20 17:57:00.
  • American Airlines AA2551 / AA5082: IAH 2026-11-23 06:00:00 → STL 2026-11-23 12:26:00; 1 stop(s) via DFW; 386 minutes. Local airport times.
    • AA2551: IAH 2026-11-23 06:00:00 → DFW 2026-11-23 07:33:00; layover at DFW: 179 minutes.
    • AA5082: DFW 2026-11-23 10:32:00 → STL 2026-11-23 12:26:00.

More dates for this route