PWM - WAS

$114 Find Cheap Flights from Portland to Washington, D.C. - 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 Portland to Washington, D.C. departing on 9/1. 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
$261
Typical prices: $413-$340
Southwest
Wed 9/2Mon 9/7
PWM - BWI • Non-stop
Cheapest one-way
$114
Typical prices: $216-$337
Southwest
Tue 9/1
PWM - BWI • Non-stop
Top airlines
Cheapest • from $261 (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 American Airlines and United Airlines. Average duration is 1h 48m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top routes
Cheapest • 9% average savings
Most popular
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $299 (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 3 weeks in advance save around 32% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 27% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Washington, D.C.!
Flight Deals
Booking Insights
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.

Wed, Sep 2 - Mon, Sep 7
Southwest Logo
5:45 am - 7:25 am
PWM
-
BWI
1h 40mnonstop
Southwest Logo
8:55 pm - 10:25 pm
BWI
-
PWM
1h 30mnonstop
$261Southwest
Tue, Jul 14 - Tue, Jul 21
American Airlines Logo
5:45 am - 7:45 am
PWM
-
DCA
2h 00mnonstop
American Airlines Logo
10:09 pm - 11:59 pm
DCA
-
PWM
1h 50mnonstop
$263American Airlines
Thu, Jul 2 - Mon, Jul 6
United Airlines Logo
5:15 am - 7:00 am
PWM
-
IAD
1h 45mnonstop
United Airlines Logo
10:10 pm - 11:51 pm
IAD
-
PWM
1h 41mnonstop
$264United Airlines
Thu, Jul 2 - Sun, Jul 5
American Airlines Logo
12:51 pm - 2:44 pm
PWM
-
DCA
1h 53mnonstop
American Airlines Logo
8:25 am - 10:05 am
DCA
-
PWM
1h 40mnonstop
$264American Airlines
Sat, Oct 24 - Wed, Oct 28
Delta Logo
6:30 am - 11:52 am
PWM
-
IAD
5h 22m
1 stop
Delta Logo
7:59 pm - 11:49 pm
IAD
-
PWM
3h 50m
1 stop
$265Delta
Fri, Sep 4 - Tue, Sep 8
Delta Logo
6:00 am - 10:09 am
PWM
-
DCA
4h 09m
1 stop
Delta Logo
7:30 pm - 11:11 pm
DCA
-
PWM
3h 41m
1 stop
$265Delta
Sat, Aug 22 - Tue, Aug 25
United Airlines Logo
6:53 pm - 10:59 pm
PWM
-
IAD
4h 06m
1 stop
United Airlines Logo
10:10 pm - 11:59 pm
IAD
-
PWM
1h 49mnonstop
$266United Airlines
Thu, Jul 9 - Sun, Jul 12
JetBlue Logo
2:40 pm - 10:59 pm
PWM
-
DCA
8h 19m
1 stop
JetBlue Logo
6:20 am - 12:30 pm
DCA
-
PWM
6h 10m
1 stop
$271JetBlue
Fri, Jul 31 - Sun, Aug 2
JetBlue Logo
3:18 pm - 10:59 pm
PWM
-
DCA
7h 41m
1 stop
JetBlue Logo
6:20 am - 12:16 pm
DCA
-
PWM
5h 56m
1 stop
$275JetBlue
Tue, Jul 28 - Wed, Jul 29
Southwest Logo
5:30 am - 7:10 am
PWM
-
BWI
1h 40mnonstop
Southwest Logo
9:20 pm - 11:00 pm
BWI
-
PWM
1h 40mnonstop
$277Southwest
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 September.

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 cheapest return flight from Portland to Washington, D.C. costs $249 on the route between Portland (PWM) and Washington, D.C. Reagan-National Airport (DCA). Over the past month, this route was, on average, 9% cheaper than other Portland-Washington, D.C. routes. It is also the most popular route.

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 Thursday, 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 Wednesday and avoiding Mondays 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 December, where tickets cost $126 (return) on average. On the other hand, the most expensive months are February and April, where the average cost of round-trip tickets is $189 and $189 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.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $358 on average.

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 3 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$114
Best time to beat the crowds with an average 22% drop in price.
Most popular time to fly with an average 21% 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 5 days, the lowest price for a flight from Portland to Washington, D.C. was $114 for a one-way ticket and $261 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 Boeing 737 MAX 8 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.?

    Star Alliance, and oneworld are the airline alliances operating flights between Portland and Washington, D.C., with Star Alliance 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 $339 and an overall rating of 7.9, Southwest is the most popular choice. United Airlines is also a great choice for the route, with an average price of $327 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 $207 or less one-way and $365 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.
7.9
SouthwestOverall score based on 4235 reviews
8.0Comfort
8.1Boarding
8.6Crew
7.5Entertainment
7.0Food
Airline reviews

It was great. The gate staff were very helpful in Portland when my son forgot his rolling bag and had to go back to get it just in time to make it on the plane. We really appreciate that. Great job!

10.0 ExcellentAnonymous, Jun 2026
DEN - ORF
Read more Southwest reviews

It was great. The gate staff were very helpful in Portland when my son forgot his rolling bag and had to go back to get it just in time to make it on the plane. We really appreciate that. Great job!

Airline is not very senior friendly. Flights are late, forcing us to run to the connecting flight. Food is awful. Wish they would go back to pretzels and peanuts. During flight, pressurization isn’t quite right and all of our ears get plugged. Everything is nickel and dime, charging for boarding, seat selection and legroom. While a screen at the desk in the gate area says check your roll on bag now for free due to space limitation, the employee at the desk will not check the bag without a $100 fee. Insane.

Kayak could’ve posted the correct gate number. Almost missed my flight.

Slow boarding, limited food and drink portions. Bad delays and turbulence

there were two flight attendants that were up front...that were the best! They get KUDOs for making my trip only fantastic. Tell them Jeff said that!

OKay. I sat in the back of the plane and it was really loud between babies and little kids, and adults who.like to talk a lot and loudly most of the flight.

Flight coming out of Buffalo was delayed, so we had to be rescheduled on another flight from Baltimore to Phoenix which means we had a long layover and got home 3.5 hours late. Shuttle to parking stopped at 10pm, so we had to pay for an Uber to the parking lot and got charged an extra day of parking since it was after midnight. Not the best experience. Long day!

Was fine, delayed and feels like southwest is always late

I don't know why flying out of Sarasota requires two plane changes.

The first time I flew in the extra legroom section. It was difficult to notice a difference. I had bad luck with my neighbors. The crew was okay. Southwest has reduced the live TV options.

Our flight was delayed 2.5 hours from Lisbon to DC so we missed our connection to Seattle that would have arrived at about 9 PM. The agent initially said we had to stay overnight in DC and there were no other options to put us on to get us to Seattle. While on board I discovered a flight via American he could have put us in but by the time we arrived in DC that was sold out. We were then put on a flight to San Francisco that was also delayed then arrived in San Francisco and our flight to Seattle was also delayed so we ended up not arriving until 2:15 am. Our son could not pick us up so we ended up having to pay over $100 to Uber home. This is the second trip with United that the flight has been delayed causing us to miss an evening in Las Vegas and we were given nothing.

MY FAMILY'S LUGGAGE WAS LOST FROM ROME TO BARI. I WAS THE ONLY ONE THAT RECEIVED MY LUGGAGE FROM ROME TO BARI. AFTER DEPLANING IN BARI, WE WASTED A LOT OF TIME AT BAG CLAIMS LOST AND FOUND REPORTING THE CLAIM AND PLEADING FOR THE BAGS TO BE DELIVERED THE NEXT DAY. WE WERE TOLD THAT IT TAKES 3 DAYS MINIMUM TO DELIVER. MY DAUGHTER AND MY GIRLFRIEND NEEDED THEIR PERSONAL THINGS AND WE WERE STAYING 3 HOURS AWAY FROM THE BARI AIRPORT. WE HAD TO DRIVE 3 HOURS TO THE AIRPORT TO COLLECT OUR LOST LUGGAGE THE NEXT DAY. WE ARE NOT HAPPY WITH THE EXPERIENCE

There were no facilities in the middle of the aircraft and premium economy was not allowed to use the business class facilities, and had to share the only two toilets at the back with economy. The upgrade to Premium was definitely not worth it

Our flight to Rome, Italy was cancelled the day of and we were never informed. We only found out because I was trying to get into my husbands account and called to get his account number. Had to pay more for worse seating on another airline.

The economy seat was much less comfortable for an international flight in terms of recline and moving space when food tray is expanded. Per entertainment, it would be amazing if I could connect my Bluetooth headset or ear phones to the entertainment screen. Or provide in-flight wifi to connect directly from my own device.

We were a little disappointed to not be able to complete check in online without uploading pics of passports. Also we have KTN's and they weren't on our boarding passes when we got to security. Had to trek back to counter to have them fix.

Excellent service in Polaris class IAD to ZRH. Arrived rested and well fed after the overnight flight.

It's a short hop. My carryon was checked at the gate, I didn't have to drag it all over the airport. Excellent wheelchair assist.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

Terrific in every way. On time, professional staff, multiple movie options to select, great food and drink.

The airplane was an old model, the overhead didn’t have enough room for people’s items and made boarding and boarding disappointing and stressful. Crew allowed passengers to bring more than the permitted baggage sizes.

It was great. Smooth flight, comfortable, left on time and landed on time.

Horrible experience upon landing. Probably more due to DCA utter incompetence than AA.

Easy boarding. Rows are smaller but that may be an older and bigger me now :)

Flight has been delayed every time I've ever taken it. Seats uncomfortable. Children behind me yelling the entire flight. Some of this is out of their control but overall just consistently not a great experience.

Poor communication ahead of time about flight delays and old planes/other equipment.

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.

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

Information on your arrival and departure airports