IAH (Houston) to DTW (Detroit) flights arrive on time 81% of the time. The most reliable airline on this route is Delta Air Lines at 84%. The average delay is 79 minutes. Delays on this route are most often caused by the airline (crew, maintenance, or boarding).
Source: Bureau of Transportation Statistics. Updated March 2026.IAH → DTW
IAH (Houston) to DTW (Detroit)
IAH → DTW on-time performance by month
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This route is on time most of the time. About 81% of flights arrive on schedule.
Delays on this route are most often caused by the airline (crew, maintenance, or boarding).
Accurate?
Delta Air Lines edges out United Airlines on this route — 84% vs 74% on time.
Airline Comparison
Delta Air Lines leads at 84% on time; United Airlines trails at 74%.
Accurate?
Good to know
Departing from IAH
80% on timeExpect ~18 min sitting on the taxiway after your gate pushes back. IAH has long runway queues.
TSA is currently ~5 min. Best time: 4 AM (about 5 min).
Arriving at DTW
84% on timeWhen flights into DTW are late, the average delay is 75 minutes. Build buffer if you have ground plans.
If connecting at DTW: TSA is ~5 min right now. Allow at least 60 minutes for a domestic connection.
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Data last updated March 2026. Source: Bureau of Transportation Statistics.