SFO → IAD: cancellations & delays
Over Jan 2023 - Apr 2026, 0.9% of San Francisco International Airport (SFO) to Washington Dulles International Airport (IAD) flights were cancelled and 19.4% arrived at least 15 minutes late, across 9,097 flights, flown by UA, AS. Cancellations peak in January.
Check today's live SFO departures →Airport pages: San Francisco International Airport (SFO) · Washington Dulles International Airport (IAD)
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.