GRR → IAH: cancellations & delays
Over Jan 2023 - Apr 2026, 2.9% of Gerald R. Ford International Airport (GRR) to George Bush Intercontinental Airport (IAH) flights were cancelled and 20.6% arrived at least 15 minutes late, across 696 flights, flown by UA, OO. Cancellations peak in January.
Check today's live GRR departures →Airport pages: Gerald R. Ford International Airport (GRR) · George Bush Intercontinental Airport (IAH)
Rates are historical averages from U.S. DOT (BTS) on-time records; a specific flight's live estimate can differ with weather and the day's disruptions.