GRR (Grand Rapids) to IAH (Houston) flights arrive on time 78% of the time. The most reliable airline on this route is United Airlines at 91%. The average delay is 64 minutes. Delays on this route are most often caused by the airline (crew, maintenance, or boarding).
Source: Bureau of Transportation Statistics. Updated March 2026.GRR → IAH
GRR (Grand Rapids) to IAH (Houston)
GRR → IAH on-time performance by month
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This route is on time most of the time. About 78% of flights arrive on schedule.
Delays on this route are most often caused by the airline (crew, maintenance, or boarding).
Accurate?
United Airlines is significantly more reliable on this route at 91% on time vs SkyWest Airlines at 74%.
Airline Comparison
United Airlines leads at 91% on time; SkyWest Airlines trails at 74%.
Accurate?
Good to know
Departing from GRR
80% on timeExpect ~17 min sitting on the taxiway after your gate pushes back. GRR has long runway queues.
TSA is currently ~5 min. Best time: 4 AM (about 5 min).
Arriving at IAH
80% on timeWhen flights into IAH are late, the average delay is 75 minutes. Build buffer if you have ground plans.
If connecting at IAH: 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.