SFO → IAH: cancellations & delays
Over Jan 2023 - Apr 2026, 1.0% of San Francisco International Airport (SFO) to George Bush Intercontinental Airport (IAH) flights were cancelled and 17.1% arrived at least 15 minutes late, across 10,902 flights, flown by UA. Cancellations peak in January.
Check today's live SFO departures →Airport pages: San Francisco International Airport (SFO) · 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.