PWM - WAS

$129 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 6/9. 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
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 24% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$249
Typical prices: $527-$287
United Airlines
Fri 6/19Sun 6/21
PWM - IAD • Non-stop
Cheapest one-way
$129
Typical prices: $181-$312
Multiple Airlines
Tue 6/9
PWM - IAD • 2 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 $249 (round-trip)
Best reviews • 8.0 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 53m
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 $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 37% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 25% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
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.

Fri, Jun 19 - Sun, Jun 21
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
$249United Airlines
Thu, May 21 - Tue, May 26
American Airlines Logo
5:36 am - 7:38 am
PWM
-
DCA
2h 02mnonstop
American Airlines Logo
10:20 pm - 11:59 pm
DCA
-
PWM
1h 39mnonstop
$249American Airlines
Thu, May 21 - Sun, May 24
American Airlines Logo
5:36 am - 7:38 am
PWM
-
DCA
2h 02mnonstop
American Airlines Logo
10:20 pm - 11:59 pm
DCA
-
PWM
1h 39mnonstop
$250American Airlines
Mon, Jun 1 - Sat, Jun 6
Multiple Airlines Logo
9:52 am - 9:15 am
PWM
-
BWI
23h 23m
1 stop
Multiple Airlines Logo
9:56 pm - 7:16 pm
BWI
-
PWM
21h 20m
2 stops
$255Multiple Airlines
Thu, May 28 - Sat, May 30
United Airlines Logo
10:55 am - 4:32 pm
PWM
-
IAD
5h 37m
1 stop
United Airlines Logo
10:10 pm - 11:51 pm
IAD
-
PWM
1h 41mnonstop
$259United Airlines
Fri, Jun 19 - Mon, Jun 22
JetBlue Logo
2:30 pm - 10:59 pm
PWM
-
DCA
8h 29m
1 stop
JetBlue Logo
6:15 am - 1:35 pm
DCA
-
PWM
7h 20m
1 stop
$268JetBlue
Fri, May 29 - Sun, May 31
JetBlue Logo
2:36 pm - 10:59 pm
PWM
-
DCA
8h 23m
1 stop
JetBlue Logo
6:00 am - 1:30 pm
DCA
-
PWM
7h 30m
1 stop
$278JetBlue
Thu, May 21 - Tue, May 26
Delta Logo
2:38 pm - 6:53 pm
PWM
-
IAD
4h 15m
1 stop
Delta Logo
7:33 pm - 12:43 am
IAD
-
PWM
5h 10m
1 stop
$281Delta
Tue, May 26 - Tue, Jun 2
Southwest Logo
3:55 pm - 5:40 pm
PWM
-
BWI
1h 45mnonstop
Southwest Logo
10:50 am - 12:20 pm
BWI
-
PWM
1h 30mnonstop
$293Southwest
Wed, Jun 3 - Sat, Jun 6
Southwest Logo
6:10 am - 7:55 am
PWM
-
BWI
1h 45mnonstop
Southwest Logo
10:05 pm - 11:40 pm
BWI
-
PWM
1h 35mnonstop
$308Southwest
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 June.

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. Dulles Intl Airport (IAD). Over the past month, flights between Portland (PWM) and Washington, D.C. Reagan-National Airport (DCA) were, on average, 9% cheaper than other Portland-Washington, D.C. routes. This 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 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 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 4 weeks before departure, which saves you about 37% 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$129
Best time to beat the crowds with an average 20% drop in price.
Most popular time to fly with an average 21% increase in price.
Flight from Portland to Washington Dulles Airport

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 $129 for a one-way ticket and $249 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 900 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 8.0, Southwest is the most popular choice. United Airlines is also a great choice for the route, with an average price of $305 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 $201 or less one-way and $359 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 4314 reviews
8.0Comfort
8.1Boarding
8.6Crew
7.5Entertainment
7.0Food
Airline reviews

The entire experience from boarding to landing was amazing! The crew were very friendly. Will definitely be back.

10.0 Excellentlarry, Apr 2026
LGB - PHX
Read more Southwest reviews

The entire experience from boarding to landing was amazing! The crew were very friendly. Will definitely be back.

no service at all due to turbulence. they should've at least given us snacks, there were only 10 people on the entire flight.

First time I've had to use the disabled accommodations. And I could not have had a better experience with Southwest, i was having trouble getting from one terminal to another due to my heart failure. And the next thing I know a Southwest agent had made sure. I had a wheelchair at all my flights. Can't thank them enough.

Delayed flight, lack of information, boarding process is a mess as is the carryon luggage causing issues when leaving the plane….just a poor experience.

Comfortable. Easy. No problems. Just wish they had gf options for snacks.

The crew was very kind and made going to Hawaii relaxing and fun to look forward to! Thank you Southwest for a pleasant flight!

This leg was much better, but we did have to have a 3 hour lay o er after coming from a very exhausting hiccup with our flight from BNA to Den

We waited in the airplane for over 45 min for a southwest employee to make the flight. This cause over half the plane to miss their connecting flight in Denver. When we confronted the desk upon arrival, they told us the only flight they had was the next day leaving at 8:50 pm!!! Or they offered to get us to Burbank or LA, but after that we were on our own to get back to Santa Barbara. I paid for a flight from sba to bna bna to sba. My re entry into mom mode has been 💯 rough because of southwest mistake with my flight. And now I’m leaving to Reno tomorrow for a vballl tournament and just discovered that my leg in Vegas has me and my 3 kids on a stand by flight even though I had booked these ticket last year November!! Do better southwest!

Southwest is kind of a slum airline. It’s gotten more expensive over the years for less and less service. I am a Southwest Chase Visa card holder and was forced to choose a seat in the 26th row in the middle seat. However my wife who is a rewards member but doesn’t hold a card or anything else, gets randomly assigned a normally paid seat in row 6! How does that work?

For the first time in a long time, the Wi-Fi actually worked the entire flight! The flight crew was amazing as usual.

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.

My bags were misplaced!!! Im in a foreign country with no bags

I liked that it was on time, however, the food was not good.

Offered to check carry on to final destination. This is the most absurd thing in the world. I'm carrying on because I need what is in the carry-on. I'm okay with picking up at next stop but then I will be on much larger plane that can accommodate it. Also, if there is ever a change to your flight. Go to the airport and have the people there fix your ticket. Don't do it over the phone or online with United they screwed us up and ended up with flights for our last leg that took off before our first leg.

United is one airline which regardless of how many separate United tickets in existence, if one flight breaks down, the airline will take care of all the flights.

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.

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