$131 Find Cheap Flights from Portland to District of Columbia

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 District of Columbia 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 District of Columbia

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Portland to District of Columbia, 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 District of Columbia, as well as popular online travel agencies
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Flight Deals

Book Cheap Portland to District of Columbia Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Portland to District of Columbia 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 District of Columbia

Sat, Jun 6 - Sun, Jun 14
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
Fri, Jun 12 - Tue, Jun 16
American Airlines Logo
5:17 pm - 7:12 pm
PWM
-
DCA
1h 55mnonstop
American Airlines Logo
10:20 pm - 11:59 pm
DCA
-
PWM
1h 39mnonstop
$264American Airlines
Wed, Jun 3 - Wed, Jun 3
American Airlines Logo
5:17 pm - 7:12 pm
PWM
-
DCA
1h 55mnonstop
American Airlines Logo
10:30 pm - 8:53 am
DCA
-
PWM
10h 23m
1 stop
$267American Airlines
Sat, Jun 13 - Mon, Jun 15
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, Jun 12 - Mon, Jun 15
Delta Logo
6:25 am - 11:48 am
PWM
-
IAD
5h 23m
1 stop
Delta Logo
7:14 pm - 12:52 am
IAD
-
PWM
5h 38m
1 stop
$269Delta
Fri, Jun 12 - Tue, Jun 16
Delta Logo
4:45 pm - 10:59 pm
PWM
-
DCA
6h 14m
1 stop
Delta Logo
11:00 am - 4:49 pm
DCA
-
PWM
5h 49m
1 stop
$269Delta
Fri, Jul 3 - Mon, Jul 6
United Airlines Logo
6:00 am - 11:28 am
PWM
-
IAD
5h 28m
1 stop
United Airlines Logo
8:20 am - 10:07 am
IAD
-
PWM
1h 47mnonstop
$270United Airlines
Fri, Aug 21 - Sun, Aug 23
JetBlue Logo
2:49 pm - 10:59 pm
PWM
-
DCA
8h 10m
1 stop
JetBlue Logo
6:20 am - 12:21 pm
DCA
-
PWM
6h 01m
1 stop
$273JetBlue
Fri, Jun 12 - Tue, Jun 16
Delta Logo
6:25 am - 11:48 am
PWM
-
IAD
5h 23m
1 stop
Delta Logo
6:05 am - 4:49 pm
IAD
-
PWM
10h 44m
2 stops
$274Delta
Fri, Jun 12 - Tue, Jun 16
Delta Logo
6:00 am - 12:46 pm
PWM
-
DCA
6h 46m
1 stop
Delta Logo
2:45 pm - 12:52 am
DCA
-
PWM
10h 07m
2 stops
$274Delta
Booking Insights

KAYAK's insights & trends for Portland to District of Columbia flights

Get data-powered insights and trends into flights from Portland to District of Columbia 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 District of Columbia?

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 District of Columbia departing in June.

What is the cheapest Portland to District of Columbia flight route?

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

The cheapest ticket to District of Columbia from Portland found in the last 3 days was to Washington, D.C., at $249 round-trip. The most popular route is from Portland (PWM) to Baltimore (BWI), and the cheapest round-trip airline ticket found on this route in the last 3 days was $336.

What is the cheapest time of day to fly to District of Columbia?

The average price for all round-trip flights from Portland to District of Columbia depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to District of Columbia is generally in the evening, when round-trip flights cost $371 on average. Morning departures are around 6% more expensive than evening flights, on average. The most expensive time of day to fly to District of Columbia is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $462.

Can I save money by flying with a layover from Portland to District of Columbia?

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 $342, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Portland to District of Columbia?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Portland to District of Columbia, 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 District of Columbia is December, when tickets cost $126 (return) on average. On the other hand, the most expensive months are February and April, when the average cost of round-trip tickets is $189 and $189 respectively.

What’s the cheapest day of the week to fly from Portland to District of Columbia?

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

For Portland to District of Columbia, Friday is the cheapest day to fly on average and Monday is the most expensive. Flying from District of Columbia back to Portland, the best deals are generally found on Wednesday, with Monday being the most expensive.

How far in advance should I book a flight from Portland to District of Columbia?

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 District of Columbia, 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 District of Columbia, you should book around 3 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.

Good to know

Low seasonFebruary
Cheapest flight$131
Best time to beat the crowds with an average 20% drop in price.
Most popular time to fly with an average 11% increase in price.
Flight from Portland to Washington Dulles Airport

FAQs - booking District of Columbia flights

  • How does KAYAK find such low prices on flights from Portland to District of Columbia?

    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 District of Columbia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Portland to District of Columbia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Portland to District of Columbia 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 District of Columbia?

    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 from Portland to District of Columbia with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Portland to District of Columbia?

    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 from Portland to District of Columbia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to District of Columbia

  • Looking for a cheap flight? 25% of our users found tickets from Portland to the following destinations at these prices or less: Washington, D.C. $191 one-way - $334 round-trip; Washington, D.C. $227 one-way - $324 round-trip

Reviews of the top 3 airlines serving from Portland to District of Columbia

 
See real verified KAYAK customer reviews for airlines flying from Portland to District of Columbia. 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 District of Columbia? 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 4282 reviews
8.6Crew
7.5Entertainment
7.0Food
8.0Comfort
8.1Boarding
Airline reviews

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.

4.0 OkayAnonymous, May 2026
MDW - LAX
Read more Southwest reviews

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.

The flight was smooth. The Southwest experience has degraded overall, but this one was okay.

No gluten free snacks. Seats felt worn or bare bones even though it was a new 737 MAX 8.

One major problem that was very unprofessional and uncalled for. Plane landed and we had to wait 20 minutes to get off the plane since they were waiting for someone to come to the gate to drive the jetway. Southwest couldn't have someone available and waiting for the plane to land? Is there only one person in Hobby airport who knows to drive the jetway? Was he at lunch? In the bar? Uncomfortable and uncalled for!

The checking experience in Orlando was terrible, almost missed the flight. Too many travelers and Southwest completely understaffed.

I'm glad it wasn't only 75% full because I could get a good seat

if I was good. Not happy that I have to pay extra money to get the seat I need for lake room, but I guess that’s a sign of the times.

Seats were very comfortable. They tilted back. Drinks and snacks were free and served 3 times. Attendants were awesome.

Plane was clean and comfortable. Flight attendants and gate staff were professional, friendly and efficient. Boarding and deplaning were orderly and efficient. All in all, the typical excellent Southwest experience.

Truly terrible. Will never willingly fly southwest again. Seats are worse than before they switched to assigned seating. One flight attendant was the opposite of helpful (rude, unhelpful, dismissive, and as my stranger seatmate said unprompted: a total prick). This caused me, 15 minutes into the flight, to book an alternate return flight home on a competing airline (first class 1.2k purchase instead of my existing planned flight) just so I would not have to ever be on that aircraft, with that terrible service person, with those horrific seats ever again.

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.

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.

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 District of Columbia

Information on your arrival and departure airports