Portland→WashingtonNonstop Flight TimePDX–IAD

Portland (Portland International Airport) to Washington (Washington Dulles International Airport).

Direct flights from PDX to IAD have an estimated flight time of about 5h 22m, based on the 2,321-mile great-circle distance. Our current captured departure sample includes 1/day across 1 captured airline, with United Airlines appearing most often in that sample. Captured departure times run from 23:30 to 23:30 local time.

Methodology: airline, aircraft, terminal, and departure-time details come from the rolling scheduled-departures window for PDX to IAD, last seen June 15, 2026. Frequency uses 5 scheduled departures across 4 observed days; flight time is estimated from great-circle distance until this route has enough tracked flights for an observed average. Provider coverage can miss operators on some routes, so confirm live timetables before booking.