€145 Cheap Flights Portland to Washington (PDX-IAD)

View €145 flight on Wed, 4 Nov 2026Opens in a new window

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

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Cheap flights from Portland to Washington (PDX-IAD)

Prices were available within the past 7 days and start at €145 for one-way flights and €310 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Thu, 30 Apr - Wed, 6 May
PDX
Portland
IAD
Washington
€310 Return, found 5 days ago
€310
Return
found 5 days ago
Select Delta flight, departing Thu, 30 Apr from Portland to Washington, returning Wed, 6 May, priced at €310 found 5 days ago
Delta
Thu, 30 Apr - Wed, 6 May
PDX
Portland
IAD
Washington
€354 Return, found 5 days ago
€354
Return
found 5 days ago
Select Delta flight, departing Thu, 30 Apr from Portland to Washington, returning Wed, 6 May, priced at €354 found 5 days ago
Delta
Thu, 30 Apr - Wed, 6 May
PDX
Portland
IAD
Washington
€373 Return, found 5 days ago
€373
Return
found 5 days ago
Select Delta flight, departing Thu, 30 Apr from Portland to Washington, returning Wed, 6 May, priced at €373 found 5 days ago
Delta
Thu, 30 Apr - Wed, 6 May
PDX
Portland
IAD
Washington
€380 Return, found 5 days ago
€380
Return
found 5 days ago
Select Delta flight, departing Thu, 30 Apr from Portland to Washington, returning Wed, 6 May, priced at €380 found 5 days ago
Delta
Thu, 30 Apr - Wed, 6 May
PDX
Portland
IAD
Washington
€382 Return, found 5 days ago
€382
Return
found 5 days ago
Select Delta flight, departing Thu, 30 Apr from Portland to Washington, returning Wed, 6 May, priced at €382 found 5 days ago
Delta
Thu, 30 Apr - Wed, 6 May
PDX
Portland
IAD
Washington
€384 Return, found 5 days ago
€384
Return
found 5 days ago
Select Delta flight, departing Thu, 30 Apr from Portland to Washington, returning Wed, 6 May, priced at €384 found 5 days ago
Delta
Thu, 30 Apr - Wed, 6 May
PDX
Portland
IAD
Washington
€392 Return, found 5 days ago
€392
Return
found 5 days ago
Select Delta flight, departing Thu, 30 Apr from Portland to Washington, returning Wed, 6 May, priced at €392 found 5 days ago
Delta
Thu, 30 Apr - Wed, 6 May
PDX
Portland
IAD
Washington
€398 Return, found 5 days ago
€398
Return
found 5 days ago
Select Delta flight, departing Thu, 30 Apr from Portland to Washington, returning Wed, 6 May, priced at €398 found 5 days ago
American Airlines
Thu, 30 Apr - Wed, 6 May
PDX
Portland
IAD
Washington
€414 Return, found 5 days ago
€414
Return
found 5 days ago
Select American Airlines flight, departing Thu, 30 Apr from Portland to Washington, returning Wed, 6 May, priced at €414 found 5 days ago
United
Thu, 30 Apr - Wed, 6 May
PDX
Portland
IAD
Washington
€427 Return, found 5 days ago
€427
Return
found 5 days ago
Select United flight, departing Thu, 30 Apr from Portland to Washington, returning Wed, 6 May, priced at €427 found 5 days ago

Frequently asked questions

How much is a flight from PDX to Dulles Intl. Airport?
If you're planning on travelling from Portland Intl. Airport (PDX) to IAD, round-trip flights start from €310. This figure is based on airfares listed within the last 7 days on Expedia for flights departing within the next year, so don't wait around. Book today and save yourself both money and time. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Portland Intl. Airport (PDX) to Dulles Intl. Airport?
This differs between air carriers, as each one has its own set of terms and conditions. Visit the Customer Service Portal, where you'll find instructions on how to cancel your flight online.
How do I find cheap flights from Portland Intl. Airport (PDX) to IAD 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 PDX to IAD flights, you'll see a "no change fees" filter for you to select.
How far is the flight from PDX Airport to Dulles Intl. Airport?
The flying distance from Portland Intl. Airport (PDX) to Dulles Intl. Airport is 3,700 kilometres. Listen to some music or bury your nose in a book and the journey will zip by.
Which airlines fly direct from PDX to Washington Dulles Intl. Airport (IAD)?
If you're looking to fly directly from PDX to Dulles Intl. Airport, United Airlines (UA) is a popular option. It operates 30 flights each month between Portland and Chantilly.
Are Portland Airport to IAD flight tickets cheaper when they're purchased at the last minute?
It is possible to nab a fantastic last-minute deal from PDX Airport to Dulles Intl. Airport, but it's also possible to miss out entirely! As many airlines release seats up to a year in advance, it's worthwhile keeping an eye on fares early and being ready to book when you see a good bargain. Expedia compares air carrier prices and updates flight deals regularly, so you can be certain you're always getting the latest offers.

Travel information

Origin airport
Portland Intl.
Destination airport
Washington Dulles Intl.
Return price
€309
Distance
3713 km
Average flight time
5 hours 12 mins

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