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Cheap Flights from Washington D.C. (IAD) to Portland (PDX)

Compare Washington Dulles to Portland flight deals

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Flight deals from Washington Dulles to Portland

Looking for a cheap last-minute deal or the best return flight from Washington Dulles to Portland? Find the lowest prices on one-way and return tickets right here.
Portland.$452 per passenger.Departing Tue, 21 Oct, returning Tue, 28 Oct.Return flight with Delta.Outbound indirect flight with Delta, departs from Washington Dulles on Tue, 21 Oct, arriving in Portland.Inbound indirect flight with Delta, departs from Portland on Tue, 28 Oct, arriving in Washington Dulles.Price includes taxes and charges.From $452, select.
Portland.$454 per passenger.Departing Sat, 1 Nov, returning Tue, 11 Nov.Return flight with United.Outbound direct flight with United departs from Washington Dulles on Sat, 1 Nov, arriving in Portland.Inbound direct flight with United departs from Portland on Tue, 11 Nov, arriving in Washington Dulles.Price includes taxes and charges.From $454, select.
Portland.$457 per passenger.Departing Tue, 28 Oct, returning Sat, 1 Nov.Return flight with United.Outbound direct flight with United departs from Washington Dulles on Tue, 28 Oct, arriving in Portland.Inbound direct flight with United departs from Portland on Sat, 1 Nov, arriving in Washington Dulles.Price includes taxes and charges.From $457, select.
Portland.$457 per passenger.Departing Tue, 7 Oct, returning Sat, 11 Oct.Return flight with United.Outbound direct flight with United departs from Washington Dulles on Tue, 7 Oct, arriving in Portland.Inbound direct flight with United departs from Portland on Sat, 11 Oct, arriving in Washington Dulles.Price includes taxes and charges.From $457, select.
Portland.$486 per passenger.Departing Wed, 24 Sep, returning Tue, 30 Sep.Return flight with Delta.Outbound indirect flight with Delta, departs from Washington Dulles on Wed, 24 Sep, arriving in Portland.Inbound indirect flight with Delta, departs from Portland on Tue, 30 Sep, arriving in Washington Dulles.Price includes taxes and charges.From $486, select.
Portland.$515 per passenger.Departing Sun, 23 Nov, returning Sat, 6 Dec.Return flight with United.Outbound indirect flight with United, departs from Washington Dulles on Sun, 23 Nov, arriving in Portland.Inbound indirect flight with United, departs from Portland on Sat, 6 Dec, arriving in Washington Dulles.Price includes taxes and charges.From $515, select.
Portland.$528 per passenger.Departing Thu, 4 Dec, returning Sun, 7 Dec.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Washington Dulles on Thu, 4 Dec, arriving in Portland.Inbound indirect flight with Southwest Airlines, departs from Portland on Sun, 7 Dec, arriving in Washington Dulles.Price includes taxes and charges.From $528, select.
Portland.$533 per passenger.Departing Tue, 3 Mar, returning Mon, 9 Mar.Return flight with Delta.Outbound indirect flight with Delta, departs from Washington Dulles on Tue, 3 Mar, arriving in Portland.Inbound indirect flight with Delta, departs from Portland on Mon, 9 Mar, arriving in Washington Dulles.Price includes taxes and charges.From $533, select.

Find the cheapest month to fly from Washington Dulles to Portland

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Washington Dulles to Portland flights are currently cheapest in October.
Sep
from $486
Oct
from $452
Nov
from $454
Dec
from $528
Jan
from $578
Feb
Find prices
Mar
from $533
Apr
from $549
May
from $638
Jun
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Jul
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Aug
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Direct flights from Washington Dulles to Portland

Washington Dulles to Portland: Alternative routes

Compare routes from Washington Dulles to Portland below. You may find an airport to fly into that's cheaper, faster, or easier than Portland.

Washington D.C. to Portland: Flight information

The things to know before you go.
Cheapest flight found$452
Cheapest month to flyOctober
Average flight time5 hrs, 46 mins
Most popular airlineUnited
Average flights per week15

Finding cheap flights from Washington Dulles to Portland: Frequently asked questions

The best price we found for a return flight from Washington Dulles to Portland is $452. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
5 hours and 46 minutes is the average flight time from Washington Dulles to Portland.
United and Brussels Airlines fly direct from Washington Dulles to Portland.
As of September 2025, there are 15 flights per week flying from Washington Dulles to Portland.
The cheapest month to fly from Washington Dulles to Portland is usually October.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Washington Dulles Airport to Portland Airport on Tuesday, 21 October 2025.
Yes – the average flight time is 5 hours and 46 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Portland but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Portland is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Delta and United offer the cheapest flight tickets to Portland.

Travelling from Washington Dulles International Airport (IAD) to Portland International Airport (PDX): what you need to know

  • Jump on a direct flight from Washington Dulles International Airport to Portland International Airport and you'll be travelling for an average of 5 hours 45 minutes.

  • Portland is three hours behind Washington DC and observes the UTC-7 timezone.

  • Flights from IAD to PDX start from 17:30 — the first with United Airlines. The last departure is at 17:45 with United Airlines. Overall, you can choose from ten weekly Washington Dulles International Airport to Portland International Airport flights.

  • Your IAD to PDX flight won't wait if you're running late, so don't forget to check in on time. Arrive up to one hour in advance for domestic flights and two hours ahead when you're travelling internationally.

  • During popular months such as April, it's best to get to the airport earlier than normal. Arrive two hours before a domestic departure and four hours ahead of international flights when you travel during a peak period in general.

  • United Airlines is your ticket to exploring Portland (and maybe even some other exciting corners of United States!). Check out the direct flights from Washington Dulles International Airport to Portland International Airport offered by this airline.

  • Most travellers choose to travel with United Airlines on this route.

  • With 77.78% of its services landing as planned, United Airlines is the most punctual carrier operating IAD to PDX flights.

  • If you want to break up your flight, just uncheck 'Direct flights only' when searching for your ticket from Washington Dulles International Airport to Portland International Airport. Here are the top stopovers between IAD and PDX:

    • Detroit Metropolitan Wayne County Airport

    • Minneapolis-St. Paul International Airport

    • Seattle-Tacoma International Airport

How to find the cheapest flights from Washington Dulles International Airport (IAD) to Portland International Airport (PDX)

  • The lowest price we've found for a one-way Washington Dulles International Airport to Portland International Airport flight is $226. A round-trip plane ticket right now is $452. Depending on the availability and when you book, these fares could change.

  • Book six months before flying. After crunching the numbers on our calendar, this is how far you'll want to book ahead to secure cheap tickets from IAD to PDX.

  • The cheapest month for flights from Washington Dulles International Airport to Portland International Airport is May. Use the 'Whole month' tool to find the lowest prices if you have a flexible schedule.

  • Never miss a deal on cheap flights from IAD to PDX by setting up a Price Alert. You'll receive an email or notification through the app when a new discounted fare appears.

  • Choose your ideal departure and arrival times, number of stops and airlines with the filters. Alternatively, sort your results by 'Cheapest' to find the best deals on flights from Washington Dulles International Airport to Portland International Airport.

Handy information about Washington Dulles International Airport (IAD)

  • The address for IAD is 1 Saarinen Circle.

  • When it comes to Washington Dulles International Airport's on-time performance, data shows 74.39% of flights meet their scheduled arrival time.

  • To get to Washington Dulles International Airport from central Washington DC, it takes around 50 minutes by car. Of course, this depends on traffic. It's approximately 56 kilometres from the airport to the city centre.

  • The trip when using public transport usually takes 3 hours 25 minutes.

  • Taking an early flight from Washington Dulles International Airport to Portland International Airport? Avoid rushing to the airport (and sneak in some extra snooze time) by picking one of these stays close to IAD:

Arriving at Portland International Airport (PDX)

Getting from Portland International Airport (PDX) to central Portland

  • You'll find PDX at 7000 NE Airport Way.

  • From Portland International Airport, Portland is approximately 19 kilometres away. It takes around 20 minutes to reach the centre by car.

  • Getting to the centre on public transport takes about 45 minutes.

When to fly to Portland International Airport (PDX)

  • July is the busiest month for flights from Washington Dulles International Airport to Portland International Airport. For smaller crowds, go to Portland in May.

  • When reserving your flight from Washington Dulles International Airport to Portland International Airport, consider the type of weather you enjoy. August is the warmest month in Portland, with temperatures ranging from 12ºC (54ºF) to 31ºC (88ºF).

  • Look for cheap tickets from IAD to PDX in December if you like cooler conditions. Temperatures are at their lowest around then, ranging between 0ºC (32ºF) and 9ºC (48ºF) on average.

Explore more of United States

  • You've seen Portland, now it's time to explore other parts of United States. Journey about 241 kilometres north to Seattle to tick off its leading attractions. From Greyhound: Bus Station to LMN Architects and Boeing Radiation Effects Lab, you'll have a full itinerary ahead.

  • If you're ready to explore another major stop in United States, consider Spokane, about 467 kilometres north-east of Portland. Manito Park, Northwest Museum of Arts & Culture and Spokane Falls are key reasons to visit.

Plan the rest of your trip from Washington D.C. to Portland

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.