$193 Find Cheap Flights from Portland to District of Columbia - 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 District of Columbia departing on 8/20. 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.
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1 adult, Economy, 0 bags

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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

Mon, Sep 14 - Sat, Sep 19
Frontier Logo
12:39 pm - 6:20 am
PDX
-
IAD
14h 41m
1 stop
Frontier Logo
7:50 am - 11:43 am
IAD
-
PDX
30h 53m
2 stops
$340Frontier
Thu, Oct 29 - Wed, Nov 4
Frontier Logo
3:47 pm - 12:49 pm
PDX
-
DCA
18h 02m
1 stop
Frontier Logo
1:59 pm - 4:35 pm
DCA
-
PDX
29h 36m
1 stop
$341Frontier
Mon, Aug 17 - Tue, Aug 25
Multiple Airlines Logo
11:27 pm - 12:01 pm
PDX
-
DCA
9h 34m
1 stop
Multiple Airlines Logo
7:00 am - 5:11 pm
DCA
-
PDX
13h 11m
1 stop
$353Multiple Airlines
Mon, Aug 17 - Thu, Aug 20
Multiple Airlines Logo
11:27 pm - 12:01 pm
PDX
-
DCA
9h 34m
1 stop
Multiple Airlines Logo
1:59 pm - 5:11 pm
DCA
-
PDX
30h 12m
1 stop
$353Multiple Airlines
Fri, Sep 25 - Sat, Sep 26
Alaska Airlines Logo
5:41 pm - 5:40 am
PDX
-
IAD
8h 59m
1 stop
Alaska Airlines Logo
7:00 am - 1:37 pm
IAD
-
PDX
9h 37m
1 stop
$361Alaska Airlines
Tue, Sep 29 - Wed, Sep 30
Alaska Airlines Logo
5:41 pm - 5:40 am
PDX
-
IAD
8h 59m
1 stop
Alaska Airlines Logo
7:00 am - 2:30 pm
IAD
-
PDX
10h 30m
1 stop
$361Alaska Airlines
Thu, Aug 27 - Tue, Sep 15
Delta Logo
11:50 am - 10:00 pm
PDX
-
DCA
7h 10m
1 stop
Delta Logo
6:10 am - 10:24 am
DCA
-
PDX
7h 14m
1 stop
$367Delta
Wed, Aug 26 - Tue, Sep 15
Delta Logo
5:30 am - 3:21 pm
PDX
-
DCA
6h 51m
1 stop
Delta Logo
6:10 am - 10:24 am
DCA
-
PDX
7h 14m
1 stop
$367Delta
Mon, Sep 14 - Fri, Sep 18
American Airlines Logo
11:06 pm - 9:24 am
PDX
-
DCA
7h 18m
1 stop
American Airlines Logo
5:00 pm - 12:07 am
DCA
-
PDX
10h 07m
1 stop
$367American Airlines
Mon, Oct 5 - Wed, Oct 7
American Airlines Logo
6:00 am - 6:03 pm
PDX
-
DCA
9h 03m
1 stop
American Airlines Logo
6:00 am - 12:22 pm
DCA
-
PDX
9h 22m
1 stop
$367American Airlines
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 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 to District of Columbia departing in September.

Flight prices are below average for this route right now.

Flights to District of Columbia from Portland usually cost between $373 and $557 in September.
The lowest price found in the past 5 days was $340 on Frontier (Sep 14-Sep 19).

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 5 days was to Baltimore, at $258 round-trip. The most popular route is from Portland (PDX) to Washington, D.C. Dulles Intl Airport (IAD), and the cheapest round-trip airline ticket found on this route in the last 5 days was $368.

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 at night, when round-trip flights cost $546 on average. The most expensive time of day to fly to District of Columbia is generally in the morning, which is peak travel time and where the average cost of a ticket is $549.

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 $501, 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 February, when tickets cost $376 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of round-trip tickets is $557 and $553 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, Wednesday is the cheapest day to fly on average and Sunday is the most expensive. Flying from District of Columbia back to Portland, the best deals are generally found on Wednesday, with Sunday 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 4 weeks before departure, which saves you about 52% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 25 weeks before departure.

Good to know

Low season

January

Cheapest flight

$193
Best time to beat the crowds with an average 7% drop in price.
Most popular time to fly and prices are also 12% lower on average.
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.

Reviews of the top 5 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
Alaska AirlinesOverall score based on 12742 reviews
7.8Comfort
8.1Boarding
8.5Crew
7.0Food
7.0Entertainment
Airline reviews

The aircraft pumps heat into the cabin in warm weather. High, prolonged discomfort. Not okay to put customers through that. Time to upgrade their fleet.

2.0 MediocreCraig, Jul 2026
PDX - SEA
Read more Alaska Airlines reviews

The aircraft pumps heat into the cabin in warm weather. High, prolonged discomfort. Not okay to put customers through that. Time to upgrade their fleet.

I would love it if Alaska Airlines brought back the complimentary beverage service on short flights

the flight was fine, But I paid extra for an Aisle seat both planes and did not get what I paid for when you pay an extra almost $80 and do not get the desired seats it was frustrating I don't fly much because of my legs need more room. thank you for your attention to this

Our seat assignments were mysteriously changed such that our boarding was delayed when they tried to fix it, but to no avail. It took more than 15 min. before we sat down. Then the catering delayed our plane for 35 min.

The flight was delayed by over an hour with no explanation.

The seats were spacious and comfortable. Even in basic economy. However, the flight boarded 30 minutes late.

TERRIFIC! Thank you all. Jason Robert Kidwell My favorite flight attendants.

Overall flight was very very good. It was on time, plane was clean, staff was great, free WiFi was wonderful, especially for my young boys and did not have to wait tiling at baggage claim. The free snacks could have been better for children under 10, They did not like the biscuits/cookies and the pretzels were stale.

No seat assignment on boarding pass. Led to unnecessary confusion.

Really enjoyed the flight. Late getting to Portland from Wash DC but the reason was severe weather. The flight back to DC was perfect and arrived 5 minutes early of expected arrival.

Chaotic boarding at these gates, multiple gates squeezed in at the very end of a concourse, behind a restaurant. Agents gave up on boarding by individual zones. Flight itself was uneventful, which is all we hope for any more.

Flight delayed due to ground hold. Republic airways did a great job.

We got stuck on the tarmac taxiing after landing early so we didn’t get off the plane until an hour later than we thought we would

Bus to plane was delayed for no apparent reason and our luggage was still on the belt when they shut it off. Took about 20 minutes to turn it back on to get our luggage.

I haven’t flown economy in over 20 years but it was not bad. Room by my feet for my bag and seat was roomy enough. Surprised in a good way.

Second flight in a row where the entertainment system is broken. 5 hour long flight with no entertainment and flight attendants did not seem interested in resolving the matter. Very shocked to be treated this poorly considering I paid for a first class experience and have Diamond Medallion status.

The service from the flight attendants were of supreme quality. They greeted and treated everyone with a wide smile. This is totally absent nowadays. Kudos to them!!!!

My seat had no padding, it was literally plywood with a plastic cover. I could not change seats on my 10 hour flight. My excitement for this trip helped me deal with the pain.

The flights were on time- Great service Would have liked more options for food choices.

The brakes on the A220 are sensitive and uncomfortably grabby

the whole trip was smooth, and as comfortable as flying is these days. flight crew was friendly and very courteous and helpful.

Yet another flight in which beverage and snack service was skipped. Other that that, firmly mediocre. Landed early, to gate late due to congestion at the gates. Airline's fault or airports fault: unknown.

The flights were on time which was great give. It was holiday travel season and there’d been some weather issues. The only complaint and this is every time with United is the terrible seat design. The head rest is not built for comfort and having my neck bent forward for a cross country trip reminded me while I try not to take United flights as a rule.

This was a very average flight. The seat was out of alignment so more uncomfortable than usual. The cabin felt not well maintained. But I safely got where I needed to go.

We had a 90 minute delay due to equipment failure that was detected just before we took off. United rebooked my connecting flight.

Dinner was okay but the breakfast was not eatable on the flight San Francisco to Zurich.

This was a Lufthansa flight. Disappointing main meal. Very rough over Canada and arrival at FRA. IFE was almost unusable.

Poor seating comfort, seat cushion too thin, very uncomfortable. My luggage didi not make the flight due to equipment change. At least. United had it delivered the next day. I was without my toilet items for one day.

Flight cancelled because of the grounded 737s. United was good about it and got us onto a later Alaska Airlines flight to Oakland (not San Francisco as originally intended). Had to go through security again and my wife dropped her MacBook Pro, which broke, a $2,500 whoopsie. But we made it home.

I liked being upgraded to first class. The flight was a redeye, so I did sleep most of it.

Luggage took too long go get off plane in Knoxville. Was almost 45 minutes after the flight landed.

Awful, tons of delays, I got into Chicago multiple hours late meaning I hit the very traffic I tried so desperately to avoid. Just empty apologies from American Airlines text alerts. Trash behavior from a trash airline.

The boarding was as always, the crew tried their best but not enough. The food was a disaster I had dietary restrictions that were half met because the company did not loaded the food for the flight. The entertainment screen was fine but content was not and also they removed the free messaging option from the flight and they charged 30 dollars for that crappy bandwidth. This flight is not worth the cost and the company is going down on quality.

As smooth as you can expect. Some issues with boarding because the previous plane took forever to deplane but overall, a good experience.

DFW-LHR Toilets not kept clean Too cramped. Aisles so narrow crew were constantly banging into people on the aisle seats. Even then, the carts used are reduced width. Other than that it was a decent flight on both legs

Excellent customer service at check in at Austin flight to DFW and excellent customer service from Karren in terminal B at DFW.

The flight itself was fine, but between the man in front of me putting his chair back, and the gentleman next to me who took up 50% of my seat, my back and neck are destroyed from the flight. I’m hoping for a better outcome flying back.

Flight boarded without pilots. Sat on plane for 3 hrs. after over an hour late boarding. Plane never took off. Had to deplane near midnight. Line for rebooking was 3 hours + long. I had to leave.

We were told there would be no food/beverage service due to turbulence. There was very little turbulence on the 2+ hour flight. I was in First Class and thought they could have done a quick service after take off as they had a quite bit of time before we would be reaching the predicted turbulent area. They could have at least passed out a quick bag of pretzels.

Very disappointed with the crew and the lack of attention given to the passengers. On a 5 hour flight they never offered a snack. One time offered a beverage and didn’t pick up the used cups until the flight was on final approach. The two flight attendants in our section mentioned that they were best friends and compared their pre flight shoes. When paying for first/business class there is a level of service that should be expected. These two spent the majority of the flight in their seats playing on their phones and laughing with each other. Very frustrating!!!

Our flight was cancelled. They could do nothing to help us get another flight that was timely. Because the first leg was cancelled we were unable to get to our connection. We had to book on an entirely different airline for today. So we spent more money, lost a day of vacation and will never fly Frontier again, so the 'we are sorry, here is $100 credit' is a joke since we won't be flying on Frontier.

The seats were hard molded plastic covered in plastic vinyl. And the scam to charge people extra to sit together. Don’t they know we can just ask someone to trade seats. And watching the staff separate young children from parents… super classy. We had to guilt them into offering up our seats. This companies policies suck. Don’t give them your money.

Canceled original flight and wasn't clear on rebooked flight. Had to pay for bags which was more than the flight itself. Normal help, drinks etc. you have to pay for. This is Not a low cost airline.

The seats were dirty with crumbs and trash , looked it had not been cleaned up from a previous flight

Flight was cancelled and was not able to get another flight thru Frontier. Per frontier a refund was issued but I do not see a refund on my Afirm account.

We did not get to go on this flight because it got canceled 4 hours prior to scheduled time. We received an email that it got canceled and then 10 minutes later we received another email that it got delayed. It was very confusing and the only options they gave us for return flight home were 12 to 22 hours of travel time. That was not an option for us since we were traveling with kids and school started on Monday. We ended up opting for a refund and booking a flight back with Alaska. The flight ended up costing us $1500 and we had to book a hotel for the night. We will never book with frontier again.

Frontier charges 25 for the service of checking in and another 79 for a carry on. Will not take this janky air carrier again.

Frontier won’t help you at the airport without paying $25. Carry on was $75. Then you get on the plain and every beverage or snack is also a charge. Seats are hard and real packed in. I would never fly them again.

Plane could have been more on time. More leg room .

I dunno. Depressing, uncomfortable (I’m poor), but on time and efficient.

Everything you need to know for your flight from Portland to District of Columbia

Information on your arrival and departure airports