PWM - WAS

$118 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 5/2. 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

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Everything you should know

Cheapest round-trip
$197
Overall average: $292
United Airlines
Fri 3/27Tue 3/31
PWM - IAD • Non-stop
Cheapest one-way
$118
Typical prices: $214-$327
American Airlines
Sat 5/2
PWM - BWI • 1 stop
Our travelers' advice
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
United Airlines
Cheapest • from $197 (round-trip)
Southwest
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Top routes
PWM
-
DCA
Cheapest • 6% average savings
PWM
-
DCA
Most popular
Insights
Insights
Insights
Insights
When to book
4 weeks
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 40% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
September
Cheapest • 18% price drop
April
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, Mar 27 - Tue, Mar 31
United Airlines Logo
9:40 am - 11:47 am
PWM
-
IAD
2h 07mnonstop
United Airlines Logo
8:36 am - 10:22 am
IAD
-
PWM
1h 46mnonstop
$197United Airlines
Tue, Feb 24 - Tue, Mar 3
American Airlines Logo
6:00 am - 7:50 am
PWM
-
DCA
1h 50mnonstop
American Airlines Logo
10:15 pm - 11:50 pm
DCA
-
PWM
1h 35mnonstop
$197American Airlines
Fri, Mar 27 - Tue, Mar 31
United Airlines Logo
7:09 pm - 11:19 pm
PWM
-
IAD
4h 10m
1 stop
United Airlines Logo
8:36 am - 10:22 am
IAD
-
PWM
1h 46mnonstop
$199United Airlines
Fri, May 8 - Mon, May 18
JetBlue Logo
2:18 pm - 10:59 pm
PWM
-
DCA
8h 41m
1 stop
JetBlue Logo
6:00 am - 1:23 pm
DCA
-
PWM
7h 23m
1 stop
$204JetBlue
Sat, Mar 21 - Mon, Mar 23
Delta Logo
2:30 pm - 7:19 pm
PWM
-
IAD
4h 49m
1 stop
Delta Logo
7:59 pm - 11:59 pm
IAD
-
PWM
4h 00m
1 stop
$209Delta
Tue, Mar 3 - Tue, Mar 10
United Airlines Logo
6:00 am - 10:29 am
PWM
-
DCA
4h 29m
1 stop
United Airlines Logo
12:55 pm - 6:25 pm
DCA
-
PWM
5h 30m
1 stop
$209United Airlines
Tue, Feb 24 - Tue, Mar 3
Delta Logo
2:35 pm - 11:09 pm
PWM
-
IAD
8h 34m
2 stops
Delta Logo
6:00 am - 12:00 pm
IAD
-
PWM
6h 00m
1 stop
$214Delta
Thu, Apr 30 - Mon, May 4
American Airlines Logo
10:47 am - 12:36 pm
PWM
-
DCA
1h 49mnonstop
American Airlines Logo
7:45 pm - 9:54 am
DCA
-
PWM
14h 09m
1 stop
$227American Airlines
Wed, May 13 - Sat, May 16
Southwest Logo
6:10 am - 7:55 am
PWM
-
BWI
1h 45mnonstop
Southwest Logo
9:40 pm - 11:10 pm
BWI
-
PWM
1h 30mnonstop
$271Southwest
Sat, Feb 21 - Thu, Feb 26
Southwest Logo
11:30 am - 1:15 pm
PWM
-
BWI
1h 45mnonstop
Southwest Logo
2:45 pm - 4:15 pm
BWI
-
PWM
1h 30mnonstop
$281Southwest
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 March.

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 $215 on the route between Portland (PWM) and Washington, D.C. Reagan-National Airport (DCA). Over the past month, this route was, on average, 6% 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 Friday, 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 Portland to Washington, D.C.. For your return ticket, we recommend flying on a Saturday and avoiding Sundays 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 September, where tickets cost $237 (return) on average. On the other hand, the most expensive months are November and June, where the average cost of round-trip tickets is $330 and $317 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 $329, 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 40% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 19 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 seasonAugust
Cheapest flight$118
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly with an average 6% 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 $118 for a one-way ticket and $197 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 $329 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 $296 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 $211 or less one-way and $325 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 4268 reviews
8.0Comfort
7.0Food
8.6Crew
8.1Boarding
7.5Entertainment
Airline reviews

All good except once again bags took an hour at Midway Airport Happens all the time. Ridiculous

10.0 ExcellentAnonymous, Jan 2026
PHX - MDW
Read more Southwest reviews

All good except once again bags took an hour at Midway Airport Happens all the time. Ridiculous

Everything went smoothly and we even arrived a little bit early.

Great vacation. Can't wait till next year for another one.

Great flight but super high price. Glad it was a business trip and not personal

On time. Friendly staff. Took to long to pre bord all the specialty groups. Cramped small plane

The seats were comfortable, and the boarding process was pretty smooth.

3 hour delay. Had to change plans and was still delayed.

The staff was very friendly, professional, and courteous. The overall flight was a great experience.

The crew canceled the complementary snack and drink in anticipation of turbulence that never materialized. I was counting on the drink (water) to take the the doses of medication - prescribed for my heart condition - that were due during the flight. Since no snack or meal was served on this flight, I cannot rate the food quality. Otherwise, this flight was excellent.

Departure was delayed more than 1/2 hour while we waited for luggage (only) transfer from another flight/plane. Once approved for takeoff, the flight was excellent.

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

The seats were comfortable and we had leg room. Great entertainment.

The flight crew where really good. Better then the crew from BNE to SFO

Safe made to destination. Late to start at GVA for icy reasons but we fought our next fly.

Miserable. They moved my seat, but canceled the next leg of my flight. I resolved the issue at my transfer, but that resulted in lost luggage that has taken days off my schedule with no resolution. Worse, they fail to interface effectively with Lufthansa, forcing me to bounce between two equally useless help desks. The apps are unable to handle the situation, the bag dropped off the tracker, and while the call centers are polite, they do not provide written information to assist with cross-airline communication.

l really enjoy very much the flight was very pleasant

The flight was delayed for 1:30 hours for maintenance issues. They should give more information about connecting flights. For a Business Cabin the Crew was mediocre.

The food is terrible. The same pasta or chicken with bad taste and presentation

It was probably one of the worst flights I’ve been on. The restrooms were never cleaned or stocked. The food was very subpar, and i usually enjoy airline food, so I was disappointed. It was just all around a bad experience. The only saving grace was the flight attendants.

The plane was experiencing problems with the HVAC system, it was very cold in the front of the plane and very hot in the back.

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

I got sick nothing contagious but distressing enough and the care I received on the flight was astounding.

Horrible. Both legs of my flight were delayed more than 6 hours. No compensation, no screens on the plane, and the plane was not clean.

After we'd boarded , they canceled the flight. The crew didn't even know , we just all received text messages. Then after they deplaned us , AA was just like "too bad, go F your self, we sure ain't gonna help you"

Initial flight was cancelled at the time of arrival to the airport, flight alternative requires switching from direct to flight with a layover, and the plane felt like it would split apart, it was so rattle-y.

The plane was probably full boarding was easy. We were able to check our carry-on luggage for free. It was a return flight through Philly to LA. Never saw a stewardess do a demonstration of emergency Procedures. I think my flight was pretty full

Weather delay for 2.5 hours followed by half hour crew delay, did not have ginger ale, uncomfortable seats

It was nobody’s fault - but the plane came 4-hrs late and we were updated randomly in 20-30 mins increments which left us hostage to sit and wait expectantly. It was very long and got very late. Our plane didn’t land until nearly 1 am! Also the toilet wasn’t working. The hosts were nice enough but were clearly “about to pass out” as one told me. Lastly, there was no snack or even time for it. Just a bad experience overall.

The boarding crew was incredibly helpful getting me on an earlier flight

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

Information on your arrival and departure airports