S$648 Cheap Flights from Washington to Portland

Based on fares advertised within the last 7 days on Expedia for flights departing within the next year, round-trip flights between Dulles Intl. Airport and PDX start from . Book now to get the best price for your big adventure. Prices and availability are subject to change. Additional terms apply.

Most flights can be cancelled online, but each air carrier has a different set of terms and conditions. If you do decide to cancel your flight, visit our Customer Service Portal and follow the instructions.

Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you’re searching for Washington Dulles Intl. Airport (IAD) to Portland Intl. Airport (PDX) flights, you’ll see a “no change fees” filter for you to select.

The flight distance from Dulles Intl. Airport to PDX is 3,700 kilometres. Work your way through your travel song playlist or finish off your latest read and the journey will zip by.

Check out the deals on offer with United Airlines (UA) if you want to fly directly from Washington Dulles Intl. Airport (IAD) to PDX. This top airline operates 30 flights every month, so you’re sure to find one that fits your schedule.

Last-minute planners can sometimes find a bargain, with some of the cheapest fares from Washington Dulles Intl. Airport (IAD) to PDX Airport popping up a few weeks before the date of departure. If you’d rather plan ahead, Expedia compares and updates the best flight deals frequently — as early as a year in advance in some cases. It depends on the carrier though, as not all airlines advertise prices so far in advance.