IAD - PDX

$197 Find Cheap Flights from Washington Dulles Airport to Portland - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to Portland departing on 8/27. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$315
Typical prices: $422-$591
Frontier
Sat 8/22Mon 8/31
IAD - PDX • 1 stop
Cheapest non-stop
$407
Typical prices: $422-$565
United Airlines
Tue 8/25Wed 9/9
IAD - PDX • Non-stop
Top airlines
Cheapest • from $315 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with United Airlines. Average duration is 5h 37m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top layover airports
Cheapest • Avg $244 (round-trip)
Shortest trip • 7h 31m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 49% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 26% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
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Flight Deals
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Expert advice
Flight Deals

Cheap Flights from Dulles Intl to Portland (IAD-PDX)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dulles Intl to Portland that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Dulles Intl to Portland

Sat, Aug 22 - Mon, Aug 31
Frontier Logo
8:59 am - 12:52 pm
IAD
-
PDX
30h 53m
1 stop
Frontier Logo
6:17 pm - 8:04 am
PDX
-
IAD
10h 47m
1 stop
$315Frontier
Sat, Aug 22 - Mon, Aug 31
Frontier Logo
8:59 am - 12:52 pm
IAD
-
PDX
30h 53m
1 stop
Frontier Logo
6:17 pm - 8:04 am
PDX
-
IAD
10h 47m
1 stop
$317Frontier
Wed, Aug 26 - Mon, Aug 31
Frontier Logo
8:59 am - 12:52 pm
IAD
-
PDX
30h 53m
1 stop
Frontier Logo
6:17 pm - 10:07 am
PDX
-
IAD
12h 50m
2 stops
$319Frontier
Wed, Sep 9 - Wed, Sep 16
Alaska Airlines Logo
7:00 am - 1:37 pm
IAD
-
PDX
9h 37m
1 stop
Alaska Airlines Logo
11:48 am - 11:59 pm
PDX
-
IAD
9h 11m
1 stop
$354Alaska Airlines
Tue, Sep 8 - Tue, Sep 15
Alaska Airlines Logo
7:00 am - 1:37 pm
IAD
-
PDX
9h 37m
1 stop
Alaska Airlines Logo
11:48 am - 11:59 pm
PDX
-
IAD
9h 11m
1 stop
$354Alaska Airlines
Sat, Sep 12 - Mon, Sep 21
Alaska Airlines Logo
7:47 pm - 9:30 am
IAD
-
PDX
16h 43m
1 stop
Alaska Airlines Logo
5:41 pm - 5:40 am
PDX
-
IAD
8h 59m
1 stop
$357Alaska Airlines
Tue, Sep 15 - Tue, Sep 29
Delta Logo
7:00 am - 12:15 pm
IAD
-
PDX
8h 15m
1 stop
Delta Logo
12:25 am - 10:53 am
PDX
-
IAD
7h 28m
1 stop
$367Delta
Fri, Aug 28 - Wed, Sep 2
Delta Logo
12:30 pm - 6:55 pm
IAD
-
PDX
9h 25m
1 stop
Delta Logo
11:50 am - 11:21 pm
PDX
-
IAD
8h 31m
1 stop
$367Delta
Tue, Aug 25 - Wed, Sep 9
United Airlines Logo
5:33 pm - 8:10 pm
IAD
-
PDX
5h 37mnonstop
United Airlines Logo
8:25 am - 4:26 pm
PDX
-
IAD
5h 01mnonstop
$407United Airlines
Sat, Sep 5 - Sat, Sep 12
United Airlines Logo
5:33 pm - 8:10 pm
IAD
-
PDX
5h 37mnonstop
United Airlines Logo
8:25 am - 4:26 pm
PDX
-
IAD
5h 01mnonstop
$407United Airlines
Booking Insights

KAYAK's insights & trends for Dulles Intl to Portland flights

Get data-powered insights and trends into flights from Dulles Intl to Portland to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Washington, D.C. Dulles Intl Airport to Portland?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Washington, D.C. Dulles Intl Airport to Portland departing in August.

Flight prices are below average for this route right now.

Flights to Portland from Washington, D.C. Dulles Intl Airport usually cost between $447 and $614 in August.
The lowest price found in the past 5 days was $315 on Frontier (Aug 22-Aug 31).

What’s the cheapest day of the week to fly from Washington Dulles Airport to Portland?

The average price of all round-trip flights from Washington, D.C. Dulles Intl Airport to Portland clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Portland on a Wednesday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday is the most expensive day to fly from Washington Dulles Airport to Portland. For your return ticket, we recommend flying on a Wednesday and avoiding Sundays for the best deals.

What is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Portland?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to Portland, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Washington, D.C. Dulles Intl Airport to Portland is January, where tickets cost $346 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is $637 and $572 respectively.

Can I save money by flying with a layover from Washington, D.C. Dulles Intl Airport to Portland?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 2 stops layover the cheapest option at $428 on average.

How far in advance should I book a flight from Washington, D.C. Dulles Intl Airport to Portland?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to Portland, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Washington, D.C. Dulles Intl Airport to Portland, you should book around 4 weeks before departure, which saves you about 49% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

Expert advice

Expert advice for your flight from Dulles Intl to Portland

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Gabriel Leigh

Gabriel Leigh

Expert on PDX

Gabriel is a writer and video creator. As senior content producer for Flightradar24 and Monocle’s transport correspondent, he keeps a close eye on aviation in particular. He has also written travel articles for the likes of The New York Times. Born in New York but raised around the world, he now lives in Sweden. He’s been to 75 countries, flying 2.3 million miles on 113 airlines and through 234 airports in the process.

Stefanie Waldek

Stefanie Waldek

Expert on IAD

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Good to know

Low season

February

Cheapest flight

$197
Best time to beat the crowds with an average 24% drop in price.
Most popular time to fly with an average 21% increase in price.
Flight from Washington Dulles Airport to Portland

When to book flights from Dulles Intl to Portland

Are your dates flexible? Find out the best times to travel from Dulles Intl to Portland based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Washington Dulles Airport to Portland flights

  • What is the cheapest flight from Washington, D.C. Dulles Intl Airport to Portland?

    In the last 5 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Portland was $197 for a one-way ticket and $315 for a round-trip.

  • Do I need a passport to fly between Washington Dulles Airport and Portland?

    No, a passport isn't needed to fly from Washington Dulles Airport to Portland. However, local authorities might ask for an official ID.

  • Which airports will I be using when flying from Washington Dulles Airport to Portland?

    Washington Dulles Airport and Portland are both served by 1 main airport. You will leave Washington Dulles Airport from Washington, D.C. Dulles Intl and will be arriving at Portland.

  • Which airlines offer Wi-Fi service onboard planes from Washington Dulles Airport to Portland?

    Alaska Airlines, and JetBlue offer inflight Wi-Fi service on the Washington Dulles Airport to Portland flight route.

  • Which aircraft models fly most regularly from Washington Dulles Airport to Portland?

    The Boeing 737-800 Passenger/BBJ2 (winglets) is the aircraft model that flies most regularly on the Washington Dulles Airport to Portland flight route.

  • Which airline alliances offer flights from Washington Dulles Airport to Portland?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between Washington Dulles Airport and Portland, with SkyTeam being the most commonly used for this route.

  • On which days can I fly direct from Washington Dulles Airport to Portland?

    There are nonstop flights from Washington Dulles Airport to Portland on a daily basis.

  • Which is the best airline for flights from Washington, D.C. to Portland, Alaska Airlines or Delta?

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Portland are Alaska Airlines and Delta. With an average price for the route of $489 and an overall rating of 7.9, Alaska Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of $425 and an overall rating of 7.8.

  • How does KAYAK find such low prices on flights from Washington Dulles Airport to Portland?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington Dulles Airport to Portland.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington Dulles Airport to Portland?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Portland from Washington Dulles Airport is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington Dulles Airport to Portland?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Portland with an airline and back to Washington Dulles Airport with another airline. Booking your flights between Washington Dulles Airport and PDX can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington Dulles Airport to Portland?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Portland from Washington Dulles Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Washington, D.C. Dulles Intl Airport to Portland

  • Looking for a cheap flight? 25% of our users found flights on this route for $284 or less one-way and $447 or less round-trip.

Prefer to fly direct from Washington Dulles Airport to Portland?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Washington, D.C. Dulles Intl to Portland.
Find which airlines fly direct from Washington, D.C. Dulles Intl Airport to Portland Airport, which days they fly and book direct flights.

Direct departures

Washington, D.C. Dulles Intl to Portland

Monday

United Airlines

United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Direct returns

Portland to Washington, D.C. Dulles Intl

Monday

United Airlines

United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Reviews of the top 3 airlines serving from Dulles Intl to Portland

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Portland. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Dulles Intl to Portland? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
Alaska AirlinesOverall score based on 12721 reviews
7.0Food
8.1Boarding
7.8Comfort
7.0Entertainment
8.5Crew
Airline reviews

Alaska changed their departure time 4 (!!!) times, then couldn't find my luggage from a direct flight from Spokane to Portland. There were 11 passengers who didn't get our luggage & had to wait 40 minutes for Alaska to find our luggage. Alaska should reimburse everyone their airfare for such inexcusable service.

2.0 MediocreAnonymous, Jul 2026
GEG - PDX
Read more Alaska Airlines reviews

Alaska changed their departure time 4 (!!!) times, then couldn't find my luggage from a direct flight from Spokane to Portland. There were 11 passengers who didn't get our luggage & had to wait 40 minutes for Alaska to find our luggage. Alaska should reimburse everyone their airfare for such inexcusable service.

Previously there were complimentary beverages served on short flights with Alaska Airlines. It was a very nice amenity and would love it if Alaska Airlines brought back that service!!

Quick, easy, on time. I couldn't ask for more great staff

Delayed flight, but there was good communication about the delay. The flight attendant saying over the intercom; ‘the ten people on their way to Maui need to contact me now or I’ll be very upset’ seemed overly dramatic and unproductive

Excellent crew, free wi-fi, good experience. But we were in Row 30 and were song the sat called to board. It’s RIDICULOUS that the end of the plane would be among the last to board IT MAKES NO SENSE.

The flight boarded and landed on time. There were frequent snacks & beverages, The pilot spoke in a clear calm voice, The leg room was cramped and there were no screens (entertainment) on this long ~6 hr. flight.

It was not a good experience, the flight was delayed 3 hours, the gate staff were super pushy to get bags checked claiming it was a full flight, there were about a dozen open seats from what I could tell. The intercom from the pilot seemed to be broken, it sounded like the pilot was speaking with a mouth full of marbles.

Love the non stop from Portland. Everyone was nice including the passengers! I will take this to DC every time if given the option:)

Loved the gate agent and flight attendants. All were extremely helpful.

There were no gluten free snacks and it wasn’t clear how to access entertainment.

The gentleman at the gate I think his name is RIE was exceptional

Fast, lovely scenery, great info on the Delta flight screen about landmarks we were flying over. Great landing!

Delta needs to step its game up get a more reliable internet service. Internet service was non-existent for this flight.

This flight was no comparison to our prior flight. I'm thinking it all has to do with the age of the aircraft.

2 of the seats in row 31 the entertainment system was not working, and one seat the tray table did not go all the way down. Flight arrived early and departed on time which was great.

Inexpensive, got an exit row aisle aeat with no middle passenger, bought a great breakfast sandwich, flight comfortable & arrived ahead of schedule.

The crew on this leg continue to be extremely helpful with my wife’s mobility issues. They also came by many many times to ensure we were comfortable and had drink some food.

I liked the cleanness in the bathroom and good crew on board and at boarding gates. There was no Hindi (Bollywood) movies. The entertainment can be improved as it is one of the worst one I saw when I compared it with other airlines. The Mumbai to Amsterdam flight did not have any food for my family which does not contain eggs in it though we have selected “Hindu Asian vegetarian meal”

I wouldn't say I liked being forced to check my small roller bag at the gate; too many people had bags and were in a higher boarding group.

Friendly boarding crew. Better could have been a bit more substantial food for this 3 plus hour flight.

Delayed 2 hours while stuck on the aircraft. If the luggage was properly loaded the first time we probably wouldn’t have been delayed at all

Had a one hour delay due to mechanical issue. I didn’t think I’d be able to make my connecting flight, but they waited for me and greeted me when I arrived to help things run smooth.

Staff were good. My seat was in need of repair, but for a short flight was not problematic. Usual basic snack and drink setup that you'll find on any US carrier. Over, a decent, basic flight.

I will never book a flight through Cheap fare. They booked me from Portland Main . And would not give me a refund, so I bought 2 tickets one for 299. From Portland Main to ORD. Then I had to buy a ticket from Oregon PDX to ORD that was another 440. So Just so you know they even told me it was there fault but no refund. Bad bussniess. I did inform United but they said they couldn't help me due to the fact I booked through Cheap Tickets. Never again. And I'm spreding the word. I let everyone know at my 50th class reunion

Not enough room between rows and food was gross. $160 baggage charge?! Never again.

East Lounge in Denver was terrible. Turning away active military on orders? Really? Sad.

Clean and plenty of room for handbaggage. Leg room was cramped compared with the 777 from Frankfurt.

they made me check my carryon. There was space in the overhead bins.

Cramped and uncomfortable seats. Not enough room for 6’2” person such as myself.

Pretty turbulent, but not anyone’s fault. They got us there. Impressed that they carried on with a drink service.

Everything you need to know for your flight from Dulles Intl to Portland

Information on your arrival and departure airports