Cheap Flights From Portland Intl. (PDX) To Washington Dulles Intl. (IAD)

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Cheapest Flights from Portland (PDX) to Washington (IAD)

The cheapest flights to Washington Dulles Intl. found within the past 7 days were CA $315 round trip and CA $156 one way. Prices and availability subject to change. Additional terms may apply.

Sat, Feb 14 - Sat, Feb 21
PDX
Portland
IAD
Washington
CA $315 Roundtrip, found 6 hours ago
CA $315
Roundtrip
found 6 hours ago
Select American Airlines flight, departing Sat, Feb 14 from Portland to Washington, returning Sat, Feb 21, priced at CA $315 found 6 hours ago
Sat, Oct 10 - Tue, Oct 13
PDX
Portland
IAD
Washington
CA $375 Roundtrip, found 23 hours ago
CA $375
Roundtrip
found 23 hours ago
Select Alaska Airlines flight, departing Sat, Oct 10 from Portland to Washington, returning Tue, Oct 13, priced at CA $375 found 23 hours ago
Sat, Oct 10 - Tue, Oct 13
PDX
Portland
IAD
Washington
CA $377 Roundtrip, found 23 hours ago
CA $377
Roundtrip
found 23 hours ago
Select Alaska Airlines flight, departing Sat, Oct 10 from Portland to Washington, returning Tue, Oct 13, priced at CA $377 found 23 hours ago
Sat, Feb 14 - Sat, Feb 21
PDX
Portland
IAD
Washington
CA $398 Roundtrip, found 6 hours ago
CA $398
Roundtrip
found 6 hours ago
Select American Airlines flight, departing Sat, Feb 14 from Portland to Washington, returning Sat, Feb 21, priced at CA $398 found 6 hours ago
Sat, Oct 10 - Tue, Oct 13
PDX
Portland
IAD
Washington
CA $424 Roundtrip, found 23 hours ago
CA $424
Roundtrip
found 23 hours ago
Select Alaska Airlines flight, departing Sat, Oct 10 from Portland to Washington, returning Tue, Oct 13, priced at CA $424 found 23 hours ago
Sat, Oct 10 - Tue, Oct 13
PDX
Portland
IAD
Washington
CA $425 Roundtrip, found 23 hours ago
CA $425
Roundtrip
found 23 hours ago
Select Alaska Airlines flight, departing Sat, Oct 10 from Portland to Washington, returning Tue, Oct 13, priced at CA $425 found 23 hours ago
Sat, Feb 14 - Sat, Feb 21
PDX
Portland
IAD
Washington
CA $430 Roundtrip, found 6 hours ago
CA $430
Roundtrip
found 6 hours ago
Select American Airlines flight, departing Sat, Feb 14 from Portland to Washington, returning Sat, Feb 21, priced at CA $430 found 6 hours ago
Sat, Oct 10 - Tue, Oct 13
PDX
Portland
IAD
Washington
CA $458 Roundtrip, found 23 hours ago
CA $458
Roundtrip
found 23 hours ago
Select Alaska Airlines flight, departing Sat, Oct 10 from Portland to Washington, returning Tue, Oct 13, priced at CA $458 found 23 hours ago
Sat, Feb 14 - Sat, Feb 21
PDX
Portland
IAD
Washington
CA $481 Roundtrip, found 6 hours ago
CA $481
Roundtrip
found 6 hours ago
Select American Airlines flight, departing Sat, Feb 14 from Portland to Washington, returning Sat, Feb 21, priced at CA $481 found 6 hours ago
Sat, Oct 10 - Tue, Oct 13
PDX
Portland
IAD
Washington
CA $491 Roundtrip, found 23 hours ago
CA $491
Roundtrip
found 23 hours ago
Select Alaska Airlines flight, departing Sat, Oct 10 from Portland to Washington, returning Tue, Oct 13, priced at CA $491 found 23 hours ago

Frequently asked questions

Are there direct flights from PDX Airport to IAD?
For the fastest trip between Portland and Sterling, try United Airlines. This airline offers direct flights from Portland Intl. Airport (PDX) to IAD.
What airlines fly from Portland Airport to Washington Dulles Intl. Airport (IAD)?
With United Airlines, you won't have to put up with extended layovers or sitting around waiting to catch your next flight. This popular airline company will fly you straight from Portland to Sterling on one of the 30 flights offered on this route each month.
What is the best day to buy a plane ticket?
Airfares offered on Friday tend to be the cheapest, according to flight demand on Travelocity.ca in 2021. Purchasing your airfares on a Thursday or Saturday can also provide better value, however our advice if you're looking to save money is to avoid booking on a Wednesday or Sunday. Our data shows that those two days have the highest ticket values on average, so keep this in mind if you're browsing flight deals.
What are the cheapest days to fly?
Frequent travellers may already know this, but earlier in the week is often the cheapest time to fly. Flights departing on a Monday are the cheapest of the week. Since flights towards the middle of the week tend to be more popular, this causes the prices to rise. This is why, on average, airfares booked on Travelocity.ca in 2021 were most expensive for Wednesday departures.
How far in advance can you book a flight?
Here's the deal: It is typically possible to start comparing international airfares on Travelocity.ca up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 2-4 weeks prior to their travel dates.*According to flight demand on Travelocity.ca from January to December 2021. Savings are subject to change and may vary depending on selections made.

Popular Flight Routes from Portland (PDX)

Travelers at PDX love to visit these top cities. Roam to the top destinations from Portland (PDX) today with the cheap prices from Travelocity!

Popular Flight Routes from Washington (IAD)

Travelers at IAD love to visit these top cities. Roam to the top destinations from Washington(IAD) today with the cheap prices from Travelocity!

*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.