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Houston → Saint Louis

Dec 21, 2026 · return Dec 28, 2026

IAH → STL1 adulteconomyRound trip

4 flight options · 3 airlines

Nonstop flights

Mon, Dec 21 – Mon, Dec 28

United Airlines
8:20 pmIAH
2h 6m
Nonstop
10:26 pmSTL
United Airlines
6:15 amSTL
2h 23m
Nonstop
8:38 amIAH

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Mon, Dec 28

United Airlines
4:30 pmIAH
2h 8m
Nonstop
6:38 pmSTL
United Airlines
6:15 amSTL
2h 23m
Nonstop
8:38 amIAH

Round-trip total · 1 adult · Taxes included

One-stop flights

Mon, Dec 21 – Mon, Dec 28

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

Mon, Dec 21 – Mon, Dec 28

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

Round-trip total · 1 adult · Taxes included

Make this trip yours

IAH ⇄ STL

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 → 2026-12-28United AirlinesUA2804 / UA1371$435.512026-10-29T01:12:09Z
2026-12-21 → 2026-12-28Frontier AirlinesF94978 + F92635 / F94474 + F94075$234.002026-10-29T01:12:09Z
2026-12-21 → 2026-12-28American AirlinesAA2551 + AA5082 / AA5082 + AA2881$403.002026-10-29T01:12:09Z
2026-12-21 → 2026-12-28United AirlinesUA4425 / UA1371$435.512026-10-29T01:12:09Z

2026-12-21 → 2026-12-28 · $435.51

  • United Airlines UA2804: IAH 2026-12-21 20:20:00 → STL 2026-12-21 22:26:00; nonstop; 126 minutes. Local airport times.
  • United Airlines UA1371: STL 2026-12-28 06:15:00 → IAH 2026-12-28 08:38:00; nonstop; 143 minutes. Local airport times.

2026-12-21 → 2026-12-28 · $234.00

  • Frontier Airlines F94978 / F92635: IAH 2026-12-21 18:23:00 → STL 2026-12-22 00:41:00; 1 stop(s) via MCO; 378 minutes. Local airport times.
    • F94978: IAH 2026-12-21 18:23:00 → MCO 2026-12-21 21:56:00; layover at MCO: 63 minutes.
    • F92635: MCO 2026-12-21 22:59:00 → STL 2026-12-22 00:41:00.
  • Frontier Airlines F94474 / F94075: STL 2026-12-28 18:21:00 → IAH 2026-12-29 00:26:00; 1 stop(s) via ATL; 365 minutes. Local airport times.
    • F94474: STL 2026-12-28 18:21:00 → ATL 2026-12-28 21:16:00; layover at ATL: 103 minutes.
    • F94075: ATL 2026-12-28 22:59:00 → IAH 2026-12-29 00:26:00.

2026-12-21 → 2026-12-28 · $403.00

  • American Airlines AA2551 / AA5082: IAH 2026-12-21 06:00:00 → STL 2026-12-21 12:26:00; 1 stop(s) via DFW; 386 minutes. Local airport times.
    • AA2551: IAH 2026-12-21 06:00:00 → DFW 2026-12-21 07:33:00; layover at DFW: 179 minutes.
    • AA5082: DFW 2026-12-21 10:32:00 → STL 2026-12-21 12:26:00.
  • American Airlines AA5082 / AA2881: STL 2026-12-28 12:58:00 → IAH 2026-12-28 17:57:00; 1 stop(s) via DFW; 299 minutes. Local airport times.
    • AA5082: STL 2026-12-28 12:58:00 → DFW 2026-12-28 15:05:00; layover at DFW: 95 minutes.
    • AA2881: DFW 2026-12-28 16:40:00 → IAH 2026-12-28 17:57:00.

2026-12-21 → 2026-12-28 · $435.51

  • United Airlines UA4425: IAH 2026-12-21 16:30:00 → STL 2026-12-21 18:38:00; nonstop; 128 minutes. Local airport times.
  • United Airlines UA1371: STL 2026-12-28 06:15:00 → IAH 2026-12-28 08:38:00; nonstop; 143 minutes. Local airport times.

More dates for this route