PWM - WAS

$105 Find Cheap Flights from Portland to Washington, D.C.

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Portland to Washington, D.C. departing on 4/27. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Washington, D.C.

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

Cheapest round-trip
$209
Overall average: $312
United Airlines
Fri 4/3Mon 4/6
PWM - IAD • Non-stop
Cheapest one-way
$105
Typical prices: $125-$214
Multiple Airlines
Mon 4/27
PWM - BWI • 3 stops
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
American's Main Cabin Extra offers early boarding.
United's Economy Plus provides extra legroom benefits.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Cheapest • from $209 (round-trip)
Best reviews • 8.0 score
Airline reviews
Airline reviews
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Airline reviews
Airline reviews
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Nonstop flights
You can fly direct with American Airlines and United Airlines. Average duration is 1h 52m
Direct flights
Direct flights
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Direct flights
Direct flights
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Top routes
Cheapest • 21% average savings
Most popular
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $264 (round-trip)
Shortest trip • 3h 30m (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 32% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 17% price drop
Most popular
Good to know
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We hope you love your trip to Washington, D.C.!
Flight Deals
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Expert advice
Flight Deals

Cheap Flights from Portland to Washington, D.C. (PWM-WAS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Portland to Washington, D.C. 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 Portland to Washington, D.C.

Fri, Apr 3 - Mon, Apr 6
United Airlines Logo
7:33 pm - 9:29 pm
PWM
-
IAD
1h 56mnonstop
United Airlines Logo
8:36 am - 10:22 am
IAD
-
PWM
1h 46mnonstop
$209United Airlines
Thu, Apr 2 - Sun, Apr 5
American Airlines Logo
6:00 am - 7:50 am
PWM
-
DCA
1h 50mnonstop
American Airlines Logo
10:20 pm - 11:55 pm
DCA
-
PWM
1h 35mnonstop
$209American Airlines
Thu, Apr 2 - Sun, Apr 5
American Airlines Logo
6:00 am - 7:50 am
PWM
-
DCA
1h 50mnonstop
American Airlines Logo
10:20 pm - 11:55 pm
DCA
-
PWM
1h 35mnonstop
$210American Airlines
Tue, Jun 9 - Wed, Jun 10
JetBlue Logo
2:25 pm - 10:59 pm
PWM
-
DCA
8h 34m
1 stop
JetBlue Logo
6:00 am - 1:24 pm
DCA
-
PWM
7h 24m
1 stop
$219JetBlue
Thu, Apr 2 - Mon, Apr 6
United Airlines Logo
7:12 pm - 11:25 pm
PWM
-
IAD
4h 13m
1 stop
United Airlines Logo
5:10 pm - 7:01 pm
IAD
-
PWM
1h 51mnonstop
$219United Airlines
Thu, Apr 2 - Tue, Apr 7
Delta Logo
6:25 am - 10:20 am
PWM
-
DCA
3h 55m
1 stop
Delta Logo
5:40 pm - 11:12 pm
DCA
-
PWM
5h 32m
1 stop
$229Delta
Thu, May 7 - Tue, May 12
Delta Logo
2:38 pm - 6:53 pm
PWM
-
IAD
4h 15m
1 stop
Delta Logo
5:21 pm - 12:43 am
IAD
-
PWM
7h 22m
2 stops
$234Delta
Thu, May 28 - Sun, May 31
JetBlue Logo
2:19 pm - 10:59 pm
PWM
-
DCA
8h 40m
1 stop
JetBlue Logo
6:00 am - 1:24 pm
DCA
-
PWM
7h 24m
1 stop
$239JetBlue
Tue, Mar 31 - Wed, Apr 1
Southwest Logo
5:30 am - 7:20 am
PWM
-
BWI
1h 50mnonstop
Southwest Logo
9:35 pm - 11:05 pm
BWI
-
PWM
1h 30mnonstop
$241Southwest
Mon, Jun 8 - Wed, Jun 10
Southwest Logo
5:35 am - 7:15 am
PWM
-
BWI
1h 40mnonstop
Southwest Logo
5:00 pm - 6:30 pm
BWI
-
PWM
1h 30mnonstop
$250Southwest
Booking Insights

KAYAK's insights & trends for Portland to Washington, D.C. flights

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

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

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

What is the cheapest Portland to Washington, D.C. flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The absolute cheapest return flight from Portland to Washington, D.C. costs $189 on the route between Portland (PWM) and Washington, D.C. Dulles Intl Airport (IAD). However, over the past month, flights between Portland (PWM) and Washington, D.C. Reagan-National Airport (DCA) were, on average, 21% cheaper than other Portland-Washington, D.C. routes. The most popular route is between Portland (PWM) and Baltimore (BWI).

What’s the cheapest day of the week to fly from Portland to Washington, D.C.?

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

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Portland to Washington, D.C., 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 Portland to Washington, D.C. is February, where tickets cost $234 (return) on average. On the other hand, the most expensive months are November and April, where the average cost of round-trip tickets is $330 and $327 respectively.

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

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.

No, with an average price for the route of $336, prices are generally cheapest when you fly direct.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Portland to Washington, D.C., 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 Portland to Washington, D.C., you should book around 4 weeks before departure, which saves you about 32% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 21 weeks before departure.

Expert advice

Expert advice for your flight from Portland to Washington, D.C.

 
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
Harriet Baskas

Harriet Baskas

Expert on American Airlines

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Stefanie Waldek

Stefanie Waldek

Expert on United Airlines

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$105
Best time to beat the crowds with an average 18% drop in price.
Most popular time to fly with an average 15% increase in price.
Flight from Portland to Baltimore

When to book flights from Portland to Washington, D.C.

Are your dates flexible? Find out the best times to travel from Portland to Washington, D.C. 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 flights from Portland to Washington, D.C.

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

    In the last 3 days, the lowest price for a flight from Portland to Washington, D.C. was $105 for a one-way ticket and $209 for a round-trip.

  • Do I need a passport to fly between Portland and Washington, D.C.?

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

  • Which airports will I be using when flying from Portland to Washington, D.C.?

    Portland is served by only 1 airport and there are 2 airports in Washington, D.C.. You will leave Portland from Portland and you will be arriving in Washington, D.C. at one of these airports: Washington, D.C. Reagan-National or Washington, D.C. Dulles Intl.

  • Which airlines offer Wi-Fi service onboard planes from Portland to Washington, D.C.?

    American Airlines, JetBlue, Delta, and Hawaiian Airlines offer inflight Wi-Fi service on the Portland to Washington, D.C. flight route.

  • Which aircraft models fly most regularly from Portland to Washington, D.C.?

    The Canadair (Bombardier) Regional Jet CRJ-550 is the aircraft model that flies most regularly on the Portland to Washington, D.C. flight route.

  • Which airline alliances offer flights from Portland to Washington, D.C.?

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

  • On which days can I fly direct from Portland to Washington, D.C.?

    There are nonstop flights from Portland to Washington, D.C. on a daily basis.

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

    The two airlines most popular with KAYAK users for flights from Portland to Washington, D.C. are Southwest and United Airlines. With an average price for the route of $330 and an overall rating of 8.0, Southwest is the most popular choice. United Airlines is also a great choice for the route, with an average price of $299 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Portland to Washington, D.C.?

    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 Portland to Washington, D.C..

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington, D.C. from Portland 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 Portland to Washington, D.C.?

    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 Washington, D.C. with an airline and back to Portland with another airline.

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

    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 Washington, D.C. from Portland 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 Portland to Washington, D.C.

  • Looking for a cheap flight? 25% of our users found flights on this route for $196 or less one-way and $347 or less round-trip.

Prefer to fly direct from Portland to Washington, D.C.?

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

Direct departures

Portland to Washington, D.C.

Monday

American Airlines,United Airlines

American Airlines,United Airlines

Tuesday

American Airlines,United Airlines

American Airlines,United Airlines

Wednesday

American Airlines,United Airlines

American Airlines,United Airlines

Thursday

American Airlines,United Airlines

American Airlines,United Airlines

Friday

American Airlines,United Airlines

American Airlines,United Airlines

Saturday

American Airlines,United Airlines

American Airlines,United Airlines

Sunday

American Airlines,United Airlines

American Airlines,United Airlines

See more direct flights

Direct returns

Washington, D.C. to Portland

Monday

American Airlines,United Airlines

American Airlines,United Airlines

Tuesday

American Airlines,United Airlines

American Airlines,United Airlines

Wednesday

American Airlines,United Airlines

American Airlines,United Airlines

Thursday

American Airlines,United Airlines

American Airlines,United Airlines

Friday

American Airlines,United Airlines

American Airlines,United Airlines

Saturday

American Airlines,United Airlines

American Airlines,United Airlines

Sunday

American Airlines,United Airlines

American Airlines,United Airlines

See more direct flights

Reviews of the top 3 airlines serving from Portland to Washington, D.C.

 
See real verified KAYAK customer reviews for airlines flying from Portland to Washington, D.C.. 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 Portland to Washington, D.C.? 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.
8.0
SouthwestOverall score based on 4319 reviews
7.0Food
8.0Comfort
7.5Entertainment
8.1Boarding
8.6Crew
Airline reviews

Long layover between flights to Long Island from BWI - need better coordination between flights

4.0 OkayKenny, Mar 2026
TPA - BWI
Read more Southwest reviews

Long layover between flights to Long Island from BWI - need better coordination between flights

I elected to pay for the upgrades and found very little difference

The new seating arrangement is so over priced for what you get.

The problem with the seat assignments is that there were a lot of rows in the front that were empty but my row at the back was full. Just not so pleasant.

No food or entertainment, just a quick 40 minute flight. A little bumpy due to Santa Ana winds but pilot has no control over that. Good flight and landing!

Good but I prefer choose your own seat. With the new assigned seats they should board from the back I see no advantage to this new boarding. Just like every other airline

I realize they are still working out kinks with the new boarding process, but by the time I boarded in group 5, most of the bins were full. All airlines should better enforce small bags and jackets going under the seats until everyone has boarded.

WiFi was not working and didn’t have a beverage service

Snacks are always pretzels. Why can't you also offer peanuts ?

Flight boarded late after announcing on time boarding. Flight arrived only a little late despite late departure. Had trouble connecting to WiFi

It was okay, the food was good, but after the landing there was not enough time for luggage and security to catch a connection. It was crowded on board.

When I went to check in at the United counter in Barcelona, Spain I had 2 different menat 2 different times in United uniforms (standing around with a couple other employees) ask me if I was traveling alone. The one man asked me 3 different ways if I was traveling alone. I am, 68 yeaers old and have all my faculties. I thought it was weird and it made me feel very uncomfortable. What difference does it make if I was traveling alone or with someone? What if I was a recent widow? That would have been horrible. They never gave me a reason why they needed to know who I was traveling with. I was hesitant to question them because I needed to be on that flight.

We were delayed for about an hour from taking off due to traffic control procedures at the destination airport. But once in the air, the flight went well. The crew members were great and provided cabin service despite moderate turbulence during much of the flight.

Crew was great. 2 1/2 hour delay was due to staff needing "rest" was avoidable and self inflicted as United not willing to hire enough crew to keep flight on time.. Ridiculous. The crew and the passengers both suffered due to this.

Fine not above and beyond as I had a connection that was delayed due to maintenance

Bad food, bad service, cold cabin with no additional blankets when asked for (they told me they don’t provide additional blankets). I’m a frequent traveler and this is one of the worst companies I traveled with (by the way I thought that I booked my ticket with Lufthansa but I didn’t see that the flights were handled by United).

Great other than a couple very drunk guys that for a while kept bumping my seat from behind. The staff did their best to control them. Even refused serving them alcohol and allowed the gal sitting next to them to move.

Good crew. Boarding delays. Almost two hours wait for the bags in DC.

Unfortunately weather delayed our flight waiting for our plane to arrive and due to a little snow time was needed to deice the plane so departure was very delayed and I missed the connecting flight

It was great. There were some issues prior to takeoff. The weather was poor so we had to go through deicing, and we were delayed a bit by the pilots' concern about one of the engines, but that's aviation. The pilots handled everything with aplomb, and kept us apprised

Never going to fly your airline again if it can be avoided.

Not to have gotten delayed by 2+ hours for the fourth straight American flight. They're the worst.

Other than nearly three hour delay for maintenance issues, everything went smooth

Snow delayed boarding several times, which I understand happens. Issue I had was that after we did board, pilot told us we were going to roll out to be de-iced, then on our way. We were de-iced once, taxied to the tarmac and then stopped. Sat for another 30 minutes or so, the another de-icing. Then we rolled out to a parking spot, only to sit for another hour due to a traffic stop in DCA, which I'm confident they knew would happen before we boarded. Pilot gave no updates other than we had to hold, attendants did speak to the crew, but when asked, said the pilot would be updating us. We on the ground in the plane waiting for over 2 hours. They did communicate that bathrooms would be open, but no other news until we left. Would have been better to be up front about status.

Flight was delayed. Not much information on when the flight would take off. Eventually we were told it was maintenance. App was not giving updates.

Flight was on time and there was an empty seat next to me. That makes for a good flight!

Maintenance took a very long time and then we were in a holding pattern. While a one-off maintenance issue is standard, there were delays on both of my flights for this trip based on maintenance issues with the planes, which delayed both flights over 45 minutes. Thankfully, I didn't have any connections but it wasn't an experience that would make me pick AA if I have other options.

Everything was good. Flight was very full so crew was busy. After we boarded and plane pulled away from the gate, we were delayed about 40 minutes- sitting on the runway - due to weather en route or at the destination. While weather is not the fault of the airline- it’s terrible to sit on a plane and not moving.

The flight was on time/early, attentive crew, and everything overall went smoothly. Disappointed that WIFI was not working for the flight.

Concern Regarding Significant Gate Delay and Jet Bridge Issue Dear Customer Relations Team, I am writing to express my disappointment with the experience I had on my recent flight AA 2414 on Sunday January 18, 2026. What should have been a routine departure turned into a frustrating and avoidable delay due to an issue with the jet bridge at the gate. As a result, the flight was delayed by approximately 90 minutes while multiple gate changes were attempted. The lack of clear communication during this period made the situation even more challenging. Passengers were left uncertain about the cause of the delay, the expected timeline, and the next steps. This not only disrupted travel plans but also created unnecessary stress for everyone on board. I understand that operational issues can arise, but a malfunctioning jet bridge and the resulting extended delay suggest an area where procedures or equipment maintenance may need attention. I hope you will review this incident to prevent similar disruptions in the future. I would appreciate acknowledgment of this concern and consideration of appropriate compensation for the inconvenience and lost time caused by this delay. Thank you for taking the time to review my experience. I look forward to hearing from you. Sincerely, Dion Dillard

Everything you need to know for your flight from Portland to Washington, D.C.

Information on your arrival and departure airports