Is a 1h 15m Layover Enough at IAH?
George Bush Intercontinental — Houston
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Risky — 19% miss rate
It's risky — a 1 hour and 15 minutes layover at IAH gives you about a 19% chance of missing your connection.
19%
Miss Rate
79%
On-Time Rate
76m
Avg Delay
Why 75 Minutes Is Risky at IAH
A 75-minute connection at IAH is risky. Based on delay patterns, roughly 19% of travelers on connections like this would miss their flight. We recommend at least 142 minutes.
·Airport reliability: IAH has a 79% on-time rate
−High average delay: When flights are late at IAH, the average delay is 76 minutes
Minimum Connection Time at IAH
55m
Domestic
120m
International
Your 75-minute layover gives you 20 minutes of buffer above the 55-minute domestic minimum. That's a reasonable buffer, but winter weather or afternoon delays can still cause problems.
Terminal Transfers at IAH
How to transfer: Skyway automated train connects Terminals A, B, C, and E. Terminal D connected via walkway from C.
Transfer time: 5-10 minutes between most terminals via Skyway
✓TSA re-screening: Not required between terminals — All terminals are connected post-security via the Skyway train system. International arrivals in Terminals C and D can connect to domestic flights without re-screening.
Compare Other Layover Times at IAH
Click any row to see the full analysis for that layover time.
What to Do Instead
- →Look for itineraries with 142+ minute layovers at IAH
- →Consider a direct flight if available
- →Book both legs on the same ticket (airline must rebook you if you miss the connection)
- →Choose an early morning first leg — morning flights are delayed less often
Check a Different Layover Time
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