IAD - PDX

$164 Find Cheap Flights from Washington Dulles Airport to Portland

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 5/19. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Portland

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Portland.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Portland.
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Everything you should know

Cheapest round-trip
$304
Typical prices: $602-$413
American Airlines
Wed 5/27Wed 6/3
IAD - PDX • 1 stop
Cheapest non-stop
$457
Typical prices: $597-$357
United Airlines
Sat 5/23Tue 5/26
IAD - PDX • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
Dulles offers the AeroTrain for quick terminal transfers.
PDX is well-connected by the Trimet Red Line light rail.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Cheapest • from $304 (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 47m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top layover airports
Cheapest • Avg $334 (round-trip)
Shortest trip • 7h 40m (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 47% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 25% price drop
Most popular
Good to know
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+1
+1
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Flight Deals
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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

Wed, May 27 - Wed, Jun 3
American Airlines Logo
7:24 pm - 12:50 am
IAD
-
PDX
8h 26m
1 stop
American Airlines Logo
9:47 pm - 8:50 am
PDX
-
IAD
8h 03m
1 stop
$304American Airlines
Wed, Jun 3 - Mon, Jun 8
Frontier Logo
9:12 am - 10:20 am
IAD
-
PDX
28h 08m
1 stop
Frontier Logo
12:35 pm - 4:20 pm
PDX
-
IAD
24h 45m
2 stops
$307Frontier
Wed, May 27 - Mon, Jun 1
American Airlines Logo
6:20 am - 2:35 pm
IAD
-
PDX
11h 15m
2 stops
American Airlines Logo
3:27 pm - 4:48 am
PDX
-
IAD
10h 21m
1 stop
$309American Airlines
Wed, May 27 - Mon, Jun 1
American Airlines Logo
6:20 am - 2:35 pm
IAD
-
PDX
11h 15m
2 stops
American Airlines Logo
11:20 am - 12:13 am
PDX
-
IAD
9h 53m
2 stops
$314American Airlines
Sun, May 31 - Sat, Jun 6
Multiple Airlines Logo
9:12 am - 10:20 am
IAD
-
PDX
28h 08m
1 stop
Multiple Airlines Logo
7:25 pm - 7:34 am
PDX
-
IAD
9h 09m
1 stop
$319Multiple Airlines
Fri, May 29 - Mon, Jun 1
Multiple Airlines Logo
9:12 am - 10:34 am
IAD
-
PDX
28h 22m
1 stop
Multiple Airlines Logo
5:46 pm - 7:34 am
PDX
-
IAD
10h 48m
1 stop
$325Multiple Airlines
Tue, Jun 2 - Mon, Jun 8
American Airlines Logo
6:18 am - 12:44 pm
IAD
-
PDX
9h 26m
1 stop
American Airlines Logo
11:43 pm - 11:08 am
PDX
-
IAD
8h 25m
1 stop
$331American Airlines
Fri, Jul 10 - Mon, Jul 13
Frontier Logo
9:50 am - 6:04 pm
IAD
-
PDX
11h 14m
1 stop
Frontier Logo
6:59 pm - 8:20 am
PDX
-
IAD
10h 21m
1 stop
$335Frontier
Sat, May 30 - Fri, Jun 5
American Airlines Logo
1:12 pm - 9:51 pm
IAD
-
PDX
11h 39m
2 stops
American Airlines Logo
12:40 am - 11:08 am
PDX
-
IAD
7h 28m
1 stop
$336American Airlines
Sun, May 24 - Sat, May 30
Delta Logo
5:21 pm - 10:02 pm
IAD
-
PDX
7h 41m
1 stop
Delta Logo
12:20 pm - 12:15 am
PDX
-
IAD
8h 55m
1 stop
$337Delta
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 May.

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 Saturday, 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 $341 (return) on average. On the other hand, the most expensive months are December and July, where the average cost of round-trip tickets is $638 and $537 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 47% 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 seasonFebruary
Cheapest flight$164
Best time to beat the crowds with an average 21% drop in price.
Most popular time to fly with an average 11% 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 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Portland was $164 for a one-way ticket and $304 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?

    Only Alaska Airlines offers 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 MAX 9 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, Southwest or Alaska Airlines?

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Portland are Southwest and Alaska Airlines. With an average price for the route of $386 and an overall rating of 8.0, Southwest is the most popular choice. Alaska Airlines is also a great choice for the route, with an average price of $480 and an overall rating of 7.9.

  • 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 $285 or less one-way and $493 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 5 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 12315 reviews
7.0Entertainment
7.1Food
8.5Crew
8.1Boarding
7.8Comfort
Airline reviews

Deboarding the plane was chaos. The passengers in the back of the plane started deplaning before the passengers in the middle of the plane could even retrieve their overhead bags. The staff of the plane did nothing to help.

6.0 GoodR, Apr 2026
GEG - PDX
Read more Alaska Airlines reviews

Deboarding the plane was chaos. The passengers in the back of the plane started deplaning before the passengers in the middle of the plane could even retrieve their overhead bags. The staff of the plane did nothing to help.

Enforce the one bag rule for carry ons. Don't allow people to have 2 and 3 carry ons. Make baggage gets loaded onto the correct plane. My bag didn't get put onto my last flight so I didn't get it until the next day.

onboard snack was pretzels, but the FA was super nice when my neighbor asked for cookies instead and also brought some for me. :)

On time. .breakfast was especially good. First class service was special

Had to buy a snack box as I am gluten free. They should be free in extra comfort. Food they provided was awful. Not enough water stops.

Tight hot cramped seating. Gate change plus a board and de plane request with two hour delay

We treated ourselves to first class and were underwhelmed by the experience. No screen for entertainment. Food was not great...only one or two options, small portions, dry. We won't waste our money upgrading again. Good news was we made it to PDX safe and sound. Crew was attentive.

The flight would have been very good , if not dor the constantly screaming baby in the row behind me. Is there a way to isolate people traveling with infants? This is not the first time this has happened to me.

it was good except the too big men in my personal space.

We were on the ground for over 2hrs Flt scheduled to leave at 5:40pm, actual departure was at 9:00pm. Around 8:00pm we were offered an option to deplane,some did while others stayed.

The agent at check in and at the gate were less than thrilled to be at work. I'm not a fan of Kayak's placement on the plane. I got put in the middle seat and none of my preferences were used.

In ATL they have two sets of departure screens. Follow what is on your airline's departure board - the ATL Airport Authority departure board had completely incorrect details about the gate assignment for my flight, which would have made me miss boarding.

Flight was delayed it was hot while sitting on the plane, one engine was working on the plane until they had to do some jimmy rigging down the runway in order for the other engine to charge up. It was ridiculous

The flight was very good and the staff was very friendly and helpful!

The only thing I would say is we tried to get on a standby earlier flight, but with our fair we couldn’t. That seems senseless to leave with open seats..

Very easy to use and convenient, you can perform any action within the same portal

In a world of delays, Delta was on time both ways! Boarding was fast and efficient. Staff was friendly. AND wifi worked.

WiFi didn’t work. Flight delayed 3 hours Crew members were illiterate Seat lean back did not work.

Flight was delayed, we could have been notified earlier and in a consistent manner. App was not refreshing for another passenger to get the latest flight status. We could have stayed and waited at the hotel instead of waiting at the airport had we known the flight was going to delayed for more than 5 hours. The toilet is too tight, and needs to be cleaned more frequently (every hour). The entertainment screen froze, the touch screen not responding to touch. We were upgraded to comfort, it is more comfortable than regular economy seats.

This wasn't my experience with Delta. It was just the Pegasus flight. Seats were very hard. Staff was kinda rough. Not very nice. Charged me for snacks. For a 4 hour flight I would've expected more.

Vegetarian selection could be better. Bread was too hard to chew.

Crew was friendly and competent. Food, wine, and entertainment were excellent except the raw tuna on the flight to Split. Recommend against serving that - at least as the only option. Many medical conditions do not allow people to eat raw fish.

United didn’t even try to hold the flight for me. They knew I had a tight connection and when I arrived at the gate less than 10 mins after final boarding the flight had already gone. The gate agent wasn’t even notified that I was on my way. She was told I wasn’t at the airport

Good quick flight on a small but comfortable plane. I'm 6'3 and had plenty of space.

The flight was delayed so we were dead tired, and after that the turbulence was horrible. I was very scared.

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.

Wifi took a while to kick in and we had a maintenance issue that took over 40 mins at the gate in Washington before pulling back

Very good. Because of the delays with my previous flight, I missed my connection, but I was able to book another flight through the United app easily.

Was happy we finally got upgraded in 1st class. The seat getting old. The cushiness need some improvement.

Ineffective communication with United resulted in lost baggage. Their Baggage Tracing counter at MUC was shut down from 11:00-14:15 on my arrival. Undertrained, underinformed staff had me Running all over MUC to find someone to help me to no avail. Staff was rude, unhelpful, and unable to effectively use the systems they did have operational. They refused to contact United in any way or provide any accommodation or other resources while I waited for my luggage. This has destroyed my downstream itinerary. If they had even the slightest visibility I may have been able to reschedule/plan, but again, their staff provided nothing, and did nothing more than their website, which doesn’t even work on a standard phone browser. Miserable failure at all levels that weren’t associated with the operation of the aircraft.

Boarding and crew were great, but seats are terribly uncomfortable. No food or entertainment options.

Everything went very smoothly! Thanks for a great first experience flying with small children!

Crew members great. Everything else a 0! Got on plane at 530am. Got de boarded for mechanical issue. Supposed to leave by 830 am. Zero communication from gate agents. Then supposed to leave by 230pm. Then delayed till 330pm. Still zero communication with gate agents. All they would say is if you have an issue call the 1800 number. You call and sit on hold minimum 45 minutes for zero answer. Finally board at 345pm didn’t take off till after 4pm! Sat in airport for 11 hours with 4 adults and 3 kids. Finally offered a $100 (we are sorry) voucher for next trip. Missed whole day in Florida had to change reservations in Florida! Absolute joke of an airline! And I usually really like sun country.

Booked through Kayak for $236. They canceled the flight unknown to me; retaining $100 for canceling it. Found out when I went to check in. Rebooked the same flight for $400. Incredibly disappointed. The Sun Country part was as to be expected. Crowded, no food, no arm room but got me where I wanted to go.

3 seperate extremely rude unhelpful staff. Delayed flight. Lost my bag

Sat between 2 big men. I was uncomfortable. Flight was delayed twice. About 2 hours altogether.

It was a good experience. I do wish the seats were roomier. Also, I did not like being charged for my carry on bag

Exceptional take off and landing in snow and wind…thank you to the well skilled pilots!

I liked entertainment system being downloaded on my iPad. The selections were limited but I appreciated being able to use my own screen. The flight was just fine. My only issue was both terminals being far from the main airport. Especially stoning at LAX near midnight and having to wait for a bus to take us to baggage pickup. Very inconvenient.

Just fine but comfort is always an issue since the seats are so close

Plane was hot and miserable and the crew was rude!

12 hour delay required getting on and off plane 3 times - would have at least liked to have been offered a snack or drink

They didn’t offer a water, even after I asked

They switched our terminal 3 times and we were delayed for four plus hours!!!

It was an early flight and most people napped/slept and the crew let us which was nice.

The crew acted like they had never done this and kept barking passive aggressive orders at people. + the security line + the delay + sitting on the tarmac for 2 hours + none of the apps or signage updating with correct times

More inflight connection. And leg space is horrible. And the paying for baggage I'd ridiculous!!!

My flight was originally from SAT to MCO connecting from MCO to ORD. We got diverted to ATL and than Frontier staff there was sooo un helpful first they said they couldn’t give us any accommodation since our flight first got delayed that cancelled and now it’s 221am and I am still in ATL since they said they need to create a new flight my final destination is ORD and I have been delayed twice and cancelled. With no real help the frontier app didn’t work no email updates over all such a horrible experience

There's no seats that lean back with little leg space i wad uncomfortable the entire flight. Your charges for extra baggage is despicable and costly!!

Remind customers of the need to have passport or new ID for boarding.

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

Information on your arrival and departure airports