IAD → PDX: cancellations & delays
Over Jan 2023 - Apr 2026, 0.9% of Washington Dulles International Airport (IAD) to Portland International Airport (PDX) flights were cancelled and 22.6% arrived at least 15 minutes late, across 938 flights, flown by UA. Cancellations peak in September.
Check today's live IAD departures →Airport pages: Washington Dulles International Airport (IAD) · Portland International Airport (PDX)
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.