Is a 30-Minute Layover Enough at IAH?
George Bush Intercontinental — Houston
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High Risk — 53% miss rate
Probably not — a 30 minutes layover at IAH means roughly a 53% chance of missing your flight.
53%
Miss Rate
79%
On-Time Rate
76m
Avg Delay
Why 30 Minutes Is High Risk at IAH
A 30-minute connection at IAH is very risky. There's roughly a 53% chance you'll miss your connecting flight. We strongly recommend at least 142 minutes, or consider booking a direct flight.
·Airport reliability: IAH has a 79% on-time rate
−Below minimum connection time: IAH requires at least 55 minutes for domestic connections. You have 30.
−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 30-minute layover is 25 minutes below the domestic minimum. Even without any delays, you may not have enough time to reach your gate.
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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