Great-circle route IAD → PWM. Faint dots are other airports, for geographic context. Download this map — free to reuse with a link back to this page.
The flight time from Washington to Portland is approximately 1h 36m nonstop. The distance is 493 miles (793 km). There are about 9 nonstop flights from Washington to Portland per day.
That is a great-circle estimate, not a scheduled block time. An airline's published time will differ by roughly 15 to 45 minutes depending on routing, winds and taxi.
| Route | Est. time | Distance | Frequency | Airlines |
|---|---|---|---|---|
| IAD → PWM Washington Dulles International Airport to Portland International Jetport Airport |
1h 36m | 493 mi | 27/wk | United Airlines |
| DCA → PWM Ronald Reagan Washington National Airport to Portland International Jetport Airport |
1h 35m | 481 mi | 22/wk | American Airlines |
| IAD → PDX Washington Dulles International Airport to Portland International Airport |
5h 04m | 2,322 mi | 7/wk | United Airlines |
| DCA → PDX Ronald Reagan Washington National Airport to Portland International Airport |
5h 06m | 2,345 mi | 7/wk | Alaska Airlines |
Frequencies come from our most recent schedule sample. Where a pairing shows “—” we track it as an operating nonstop but hold no schedule sample for it — we would rather show nothing than guess.
3 airlines fly nonstop from Washington to Portland, including Alaska Airlines, American Airlines, United Airlines.
Recent scheduled departures on this route have used the Embraer 175, Boeing 737, Airbus A319, Canadair reg jet 700 and 2 other types.
Aircraft assignments change by season and by time of day.
The distance from Washington to Portland is 493 miles, or 793 kilometres.
| Great-circle distance | 493 mi |
| Kilometres | 793 km |
| Nautical miles | 428 nmi |
Measured airport to airport. The actual track is longer — aircraft follow airways, avoid restricted airspace and route around weather.
Yes. 3 airlines fly it nonstop, with about 63 departures a week, across 4 airport pairings. The route is in our live nonstop dataset, last seeded 2026-07-07.
About 1h 36m in the air on the IAD–PWM nonstop. That is a great-circle estimate from the 493-mile distance, not a scheduled block time — an airline's published time will differ by roughly 15 to 45 minutes depending on routing, winds and taxi.
493 miles (793 km) great-circle between Washington Dulles International Airport and Portland International Jetport Airport.
Alaska Airlines, American Airlines, United Airlines.
Recent scheduled departures have used the Embraer 175, Boeing 737, Airbus A319, Canadair reg jet 700. Assignments change by season and by time of day.
IAD to PWM, DCA to PWM, IAD to PDX, DCA to PDX. Flight times differ slightly between them because the airports are not in the same place.
