Home / Routes / KIAH → KSTL1,298 scheduled

The route from George Bush Intercontinental Houston Airport (KIAH) in Houston to St Louis Lambert International Airport (KSTL) in St Louis. SkyMeter tracks roughly 1,298 scheduled flights on this route across 5 carriers. The most active operator is UAL (UAL). Average block time is 2h 4m. Departures average 32 minutes off schedule, with 55% running more than 15 minutes late. The most common aircraft on this route is the EMBRAER Embraer 175 long wing.

Scheduled
1,298
last 445 days
ADS-B observed
312
Airlines
5
Avg dep delay
32m
Late >15 min
55.2%
Cancel rate
1.00%

Recent observed flights

From ADS-B trace data

2026-07-19 21:10  →  2026-07-19 23:07  ·  1h 57m
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2026-07-19 17:23  →  2026-07-19 19:23  ·  1h 59m
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2026-07-19 14:23  →  2026-07-19 15:58  ·  1h 35m
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2026-07-19 01:43  →  2026-07-19 03:37  ·  1h 53m
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2026-07-18 23:42  →  2026-07-19 01:30  ·  1h 48m
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2026-07-18 13:29  →  2026-07-18 15:07  ·  1h 37m
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2026-07-18 01:42  →  2026-07-18 03:18  ·  1h 36m
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2026-07-17 20:34  →  2026-07-17 22:15  ·  1h 40m
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2026-07-17 18:48  →  2026-07-17 20:29  ·  1h 40m
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2026-07-17 17:26  →  2026-07-17 19:05  ·  1h 38m
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Codeshare partnerships

Marketing carriers selling tickets on this route under their own flight numbers

sells UAL 1208
sells UAL 1208
sells UAL 714
sells UAL 353
sells UAL 331

Looking for the return flight?

View KSTL → KIAH