SEA → IAH: cancellations & delays
Over Jan 2023 - Apr 2026, 1.3% of Seattle–Tacoma International Airport (SEA) to George Bush Intercontinental Airport (IAH) flights were cancelled and 21.8% arrived at least 15 minutes late, across 6,798 flights, flown by UA, AS, DL. Cancellations peak in January.
Check today's live SEA departures →Airport pages: Seattle–Tacoma International Airport (SEA) · 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.