S$280 Cheap Flights from Washington to Portland

View S$280 flight on Tue, 26 May, 2026Opens in a new window

Popular airlines from Washington Dulles Intl. Airport (IAD) to Portland International Airport (PDX)

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Cheap Flights from Washington to Portland (IAD-PDX)

Prices were available within the past 7 days and start at S$280 for one-way flights and S$521 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, 26 May - Tue, 2 Jun
IAD
Washington
PDX
Portland
S$521 Return, found 5 days ago
S$521
Return
found 5 days ago
Select Delta flight, departing Tue, 26 May from Washington to Portland, returning Tue, 2 Jun, priced at S$521 found 5 days ago
Delta
Tue, 26 May - Tue, 2 Jun
IAD
Washington
PDX
Portland
S$559 Return, found 5 days ago
S$559
Return
found 5 days ago
Select Delta flight, departing Tue, 26 May from Washington to Portland, returning Tue, 2 Jun, priced at S$559 found 5 days ago
Delta
Tue, 26 May - Tue, 2 Jun
IAD
Washington
PDX
Portland
S$572 Return, found 5 days ago
S$572
Return
found 5 days ago
Select Delta flight, departing Tue, 26 May from Washington to Portland, returning Tue, 2 Jun, priced at S$572 found 5 days ago
Delta
Tue, 26 May - Tue, 2 Jun
IAD
Washington
PDX
Portland
S$586 Return, found 5 days ago
S$586
Return
found 5 days ago
Select Delta flight, departing Tue, 26 May from Washington to Portland, returning Tue, 2 Jun, priced at S$586 found 5 days ago
Delta
Tue, 26 May - Tue, 2 Jun
IAD
Washington
PDX
Portland
S$592 Return, found 5 days ago
S$592
Return
found 5 days ago
Select Delta flight, departing Tue, 26 May from Washington to Portland, returning Tue, 2 Jun, priced at S$592 found 5 days ago
United
Tue, 26 May - Tue, 2 Jun
IAD
Washington
PDX
Portland
S$603 Return, found 5 days ago
S$603
Return
found 5 days ago
Select United flight, departing Tue, 26 May from Washington to Portland, returning Tue, 2 Jun, priced at S$603 found 5 days ago
American Airlines
Tue, 26 May - Tue, 2 Jun
IAD
Washington
PDX
Portland
S$673 Return, found 5 days ago
S$673
Return
found 5 days ago
Select American Airlines flight, departing Tue, 26 May from Washington to Portland, returning Tue, 2 Jun, priced at S$673 found 5 days ago
United
Tue, 26 May - Tue, 2 Jun
IAD
Washington
PDX
Portland
S$716 Return, found 5 days ago
S$716
Return
found 5 days ago
Select United flight, departing Tue, 26 May from Washington to Portland, returning Tue, 2 Jun, priced at S$716 found 5 days ago
United
Tue, 26 May - Tue, 2 Jun
IAD
Washington
PDX
Portland
S$724 Return, found 5 days ago
S$724
Return
found 5 days ago
Select United flight, departing Tue, 26 May from Washington to Portland, returning Tue, 2 Jun, priced at S$724 found 5 days ago
Delta
Tue, 26 May - Tue, 2 Jun
IAD
Washington
PDX
Portland
S$732 Return, found 5 days ago
S$732
Return
found 5 days ago
Select Delta flight, departing Tue, 26 May from Washington to Portland, returning Tue, 2 Jun, priced at S$732 found 5 days ago

Frequently asked questions

How much is a flight from IAD to PDX Airport?
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 S$521. Book now to get the best price for your big adventure. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Washington Dulles Intl. Airport (IAD) to Portland Airport?
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.
How do I find cheap flights from Washington Dulles Intl. Airport (IAD) to PDX that have flexible change policies?
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.
How far is the flight from Dulles Intl. Airport to Portland Intl. Airport (PDX)?
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.
Which airlines fly direct from Dulles Intl. Airport to PDX?
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.
Are IAD to PDX flight tickets cheaper when they're purchased at the last minute?
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.

Travel information

Origin airport
Washington Dulles Intl.
Destination airport
Portland Intl.
Return price
S$521
Distance
3713 km
Average flight time
5 hours 47 mins

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