SMF → IAD: cancellations & delays
Over Jan 2023 - Apr 2026, 1.5% of Sacramento International Airport (SMF) to Washington Dulles International Airport (IAD) flights were cancelled and 11.2% arrived at least 15 minutes late, across 1,061 flights, flown by UA. Cancellations peak in July.
Check today's live SMF departures →Airport pages: Sacramento International Airport (SMF) · 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.