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Cheap flights from Portland to Washington, D.C. from $104

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to Washington, D.C. departing on 3/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
5:02 pm - 5:51 am
PDX
-
BWI
9h 49m
1 stop
Delta Logo
2:59 pm - 9:12 pm
BWI
-
PDX
9h 13m
1 stop
$249Delta
Tue, Mar 17 - Tue, Mar 24
United Airlines Logo
1:24 pm - 11:15 pm
PDX
-
BWI
6h 51m
1 stop
United Airlines Logo
8:42 am - 2:48 pm
BWI
-
PDX
9h 06m
1 stop
$251United Airlines
Tue, Feb 10 - Tue, Feb 17
United Airlines Logo
5:00 am - 3:11 pm
PDX
-
BWI
7h 11m
1 stop
United Airlines Logo
6:15 am - 12:25 pm
BWI
-
PDX
9h 10m
1 stop
$253United Airlines
Tue, Apr 28 - Sat, May 2
Frontier Logo
12:04 pm - 9:59 pm
PDX
-
DCA
6h 55m
1 stop
Frontier Logo
6:00 pm - 11:09 am
DCA
-
PDX
20h 09m
1 stop
$281Frontier
Thu, Mar 12 - Sun, Mar 15
Southwest Logo
6:30 am - 6:20 pm
PDX
-
DCA
8h 50m
1 stop
Southwest Logo
6:00 am - 2:30 pm
DCA
-
PDX
11h 30m
1 stop
$283Southwest
Sun, Feb 8 - Thu, Feb 12
Alaska Airlines Logo
8:02 am - 4:01 pm
PDX
-
DCA
4h 59mnonstop
Alaska Airlines Logo
5:01 pm - 12:09 am
DCA
-
PDX
10h 08m
1 stop
$287Alaska Airlines
Fri, Feb 6 - Tue, Feb 10
Southwest Logo
6:45 am - 7:25 pm
PDX
-
DCA
9h 40m
1 stop
Southwest Logo
9:30 am - 7:55 pm
DCA
-
PDX
13h 25m
2 stops
$288Southwest
Fri, Feb 27 - Wed, Mar 4
Alaska Airlines Logo
10:30 am - 9:59 pm
PDX
-
DCA
8h 29m
1 stop
Alaska Airlines Logo
9:59 am - 4:41 pm
DCA
-
PDX
9h 42m
1 stop
$297Alaska Airlines
Tue, Mar 10 - Wed, Mar 11
Hawaiian Airlines Logo
7:24 am - 8:00 pm
PDX
-
DCA
9h 36m
1 stop
Hawaiian Airlines Logo
8:00 am - 1:48 pm
DCA
-
PDX
8h 48m
1 stop
$300Hawaiian Airlines
Thu, Feb 5 - Wed, Feb 11
Hawaiian Airlines Logo
8:04 am - 4:00 pm
PDX
-
DCA
4h 56mnonstop
Hawaiian Airlines Logo
8:59 am - 4:49 pm
DCA
-
PDX
10h 50m
1 stop
$303Hawaiian Airlines
Thu, Feb 26 - Thu, Mar 5

Sun Country Air flights from Portland to Washington, D.C.

Our best Sun Country Air deals on Portland to Washington, D.C. flight tickets
Sun Country Air
Jun 10
PDX6:28 pmPortland
14h 17m
1 stop
IAD11:45 amWashington, D.C. Dulles Intl
Jun 18
IAD12:40 pmWashington, D.C. Dulles Intl
7h 54m
1 stop
PDX5:34 pmPortland
$305
Sun Country Air
Jun 20
PDX6:28 pmPortland
14h 17m
1 stop
IAD11:45 amWashington, D.C. Dulles Intl
Jun 27
IAD12:46 pmWashington, D.C. Dulles Intl
7h 43m
1 stop
PDX5:29 pmPortland
$306
Sun Country Air
Jun 18
PDX11:59 pmPortland
16h 47m
1 stop
IAD7:46 pmWashington, D.C. Dulles Intl
Jun 21
IAD12:40 pmWashington, D.C. Dulles Intl
7h 54m
1 stop
PDX5:34 pmPortland
$315

American Airlines flights from Portland to Washington, D.C.

Our best American Airlines deals on Portland to Washington, D.C. flight tickets
American Airlines
Feb 5
PDX10:15 pmPortland
9h 04m
1 stop
BWI10:19 amBaltimore/Washington
Feb 11
BWI6:07 amBaltimore/Washington
10h 14m
1 stop
PDX1:21 pmPortland
$255
American Airlines
Feb 23
PDX11:40 pmPortland
8h 39m
1 stop
BWI11:19 amBaltimore/Washington
Feb 26
BWI6:40 pmBaltimore/Washington
8h 37m
1 stop
PDX12:17 amPortland
$257
American Airlines
Feb 26
PDX11:35 pmPortland
8h 43m
1 stop
BWI11:18 amBaltimore/Washington
Mar 5
BWI5:00 amBaltimore/Washington
8h 58m
1 stop
PDX10:58 amPortland
$258

momondo Fare Finder

 
Customize your flight search to find flights from Portland to Washington, D.C. that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated January 14, 2026.
Use the filters below to find and compare flights from Portland to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandBaltimore

PDX - BWI

PDXBWI

Portland

Tue 3/17

5:02 pm-5:51 am

1 stop9h 49m

Baltimore/Washington

Tue 3/24

2:59 pm-9:12 pm

1 stop9h 13m

$249

PortlandBaltimore

PDX - BWI

PDXBWI

Portland

Tue 2/10

1:24 pm-11:15 pm

1 stop6h 51m

Baltimore/Washington

Tue 2/17

8:42 am-2:48 pm

1 stop9h 06m

$251

PortlandBaltimore

PDX - BWI

PDXBWI

Portland

Tue 4/28

5:00 am-3:11 pm

1 stop7h 11m

Baltimore/Washington

Sat 5/2

6:15 am-12:25 pm

1 stop9h 10m

$253

PortlandWashington, D.C.

PDX - DCA

PDXDCA

Portland

Thu 3/12

12:04 pm-9:59 pm

1 stop6h 55m

Washington, D.C. Reagan-National

Sun 3/15

6:00 pm-11:09 am

1 stop20h 09m

$281

PortlandWashington, D.C.

PDX - DCA

PDXDCA

Portland

Sun 2/8

6:30 am-6:20 pm

1 stop8h 50m

Washington, D.C. Reagan-National

Thu 2/12

6:00 am-2:30 pm

1 stop11h 30m

$283

PortlandWashington, D.C.

PDX - DCA

PDXDCA

Portland

Fri 2/6

8:02 am-4:01 pm

Nonstop4h 59m

Washington, D.C. Reagan-National

Tue 2/10

5:01 pm-12:09 am

1 stop10h 08m

$287

PortlandWashington, D.C.

PDX - DCA

PDXDCA

Portland

Fri 2/27

6:45 am-7:25 pm

1 stop9h 40m

Washington, D.C. Reagan-National

Wed 3/4

9:30 am-7:55 pm

2 stops13h 25m

$288

PortlandWashington, D.C.

PDX - DCA

PDXDCA

Portland

Tue 3/10

10:30 am-9:59 pm

1 stop8h 29m

Washington, D.C. Reagan-National

Wed 3/11

9:59 am-4:41 pm

1 stop9h 42m

$297

PortlandWashington, D.C.

PDX - DCA

PDXDCA

Portland

Thu 2/5

7:24 am-8:00 pm

1 stop9h 36m

Washington, D.C. Reagan-National

Wed 2/11

8:00 am-1:48 pm

1 stop8h 48m

$300

PortlandWashington, D.C.

PDX - DCA

PDXDCA

Portland

Thu 2/26

8:04 am-4:00 pm

Nonstop4h 56m

Washington, D.C. Reagan-National

Thu 3/5

8:59 am-4:49 pm

1 stop10h 50m

$303

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Portland to Washington, D.C.

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Portland and Washington, D.C.?

What is the cheapest month to fly to Washington, D.C.?

The month of February is, on average, the cheapest month to fly to Washington, D.C. from Portland, with most prices found around $356. If you’re not able to fly to Washington, D.C. in February, then August is your next best option. Flight prices from Portland to Washington, D.C. during August average around $387.

What is the cheapest day to depart on your flight to Washington, D.C.?

On average, the least expensive day to fly to Washington, D.C. from Portland is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $487. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Portland to Washington, D.C. for around $674.

What is the cheapest time of day to depart on your flight to Washington, D.C.?

In the evening is the cheapest time of day to fly from Portland to Washington, D.C. when you can find flight prices for as low as $500. Flying to Washington, D.C. in the evening is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the morning because they tend to be around $557. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Portland to Washington, D.C. flight route?

Fly from Portland to Washington, D.C. Reagan-National for the best Portland - Washington, D.C. flight prices

How far in advance should I book a flight to Washington, D.C.?

You are more likely to see cheaper flights to Washington, D.C. from Portland when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. for around $438 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. from Portland for as low as $362 on momondo.

What cabin class options are available on Portland to Washington, D.C. flights?

There are 4 cabin classes available to choose from on Portland to Washington, D.C. flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Portland to Washington, D.C. flights?

You could potentially save up to 20% on your flight if you consider stops on a Portland to Washington, D.C. flight.

How have Portland to Washington, D.C. flight prices changed over time?

As of January 2026, prices for Portland to Washington, D.C. flights are approximately 40% more expensive when compared to flights at the same time last year.

When to book flights from Portland to Washington, D.C.

Are you open to changing your travel dates? Check out the ideal times to fly from Portland to Washington, D.C. according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Portland to Washington, D.C. (PDX to WAS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to Washington, D.C.

Best Price Found

$158

Fastest flight time

4h 48m

Direct flights

Every day

Airports in Washington, D.C.

2 airports
The best one-way flight to Washington, D.C. from Portland in the past 72 hours is $158. The best round-trip flight deal from Portland to Washington, D.C. found on momondo in the last 72 hours is $317.
The fastest flight from Portland to Washington, D.C. takes 4h 48m
Direct flights go from Portland to Washington, D.C. every day.
There are 2 airports in Washington, D.C.. From Portland there are direct flights to Washington, D.C. Reagan-National (DCA), Baltimore/Washington (BWI), Washington, D.C. Dulles Intl (IAD).
Search flight deals

  • How far is Portland to Washington, D.C. by plane?

    A flight from Portland to Washington, D.C. will travel around 2345.6 mi. A reasonable flight in good conditions will take 4h 48m.

  • When did momondo last update prices for flights from Portland Airport to Washington, D.C.?

    Prices for flights from Portland Airport to Washington, D.C. are updated daily.

  • How many operators does momondo search for flights from Portland Airport to Washington, D.C.?

  • How old do you have to be to fly from Portland Airport to Washington, D.C.?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Portland Airport to Washington, D.C..

  • What documentation or ID do you need to fly to Washington, D.C.?

    The travel and health documents required for your trip to Washington, D.C. can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Washington, D.C.. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Portland to Washington, D.C.?

  • What is the most popular airline from Portland to Washington, D.C.?

Best airlines flying from Portland to Washington, D.C.

Compare and see reviews for airlines that fly from Portland to Washington, D.C. with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $89Free CancellationRating
6.3
8,318 reviews
Search Spirit Airlines flights
FrontierPriceFrom $132Free CancellationRating
5.7
3,056 reviews
Search Frontier flights
DeltaPriceFrom $188Free CancellationRating
7.9
8,044 reviews
Search Delta flights
American AirlinesPriceFrom $236Free CancellationRating
7.2
11,125 reviews
Search American Airlines flights
United AirlinesPriceFrom $243Free CancellationRating
7.4
9,161 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $253Free CancellationRating
8.0
11,711 reviews
Search Alaska Airlines flights
SouthwestPriceFrom $297Free CancellationRating
8.0
4,258 reviews
Search Southwest flights
Hawaiian AirlinesPriceFrom $299Free CancellationRating
7.8
2,827 reviews
Search Hawaiian Airlines flights

  • Alaska Airlines Flights From Portland to Washington, D.C.

    Alaska Airlines flight deals from Portland to Washington, D.C. start from $253 round-trip. Over the 6 Alaska Airlines flights for this route in a normal week, average airfare is usually $492 round-trip - but some users have found much cheaper deals with momondo.

  • Hawaiian Airlines Flights From Portland to Washington, D.C.

    Another popular option for Portland to Washington, D.C. flights is Hawaiian Airlines (7.8/10, 2,827 ratings). Hawaiian Airlines flies from Portland to Washington, D.C. around 6 times per week, with deals starting from $299 round-trip and rising to an average price of around $512.

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
National Harbor
Gettysburg
Arlington
Waldorf
Woodbridge
Tysons
Laurel
Colonial Beach
Silver Spring
Towson
Fredericksburg
Gaithersburg
Rockville
Manassas
Springfield
Fairfax
Glen Burnie
Linthicum Heights
Reston

Why use momondo?

Why should I use momondo to find a flight deal from Portland to Washington, D.C.?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Washington, D.C. from Portland.

Can I find flights from Portland to Washington, D.C. with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Washington, D.C. from Portland with this policy.

How can momondo help me find flights from Portland to Washington, D.C.?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Portland to Washington, D.C..

I’m not ready to book a flight from Portland to Washington, D.C. right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Portland to Washington, D.C. now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Washington, D.C. and let you know when they change.

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Find better results for your trip to the United States

Fly into one of these airports located in Washington, D.C.

Airports listed have a maximum distance of 22.4 mi from Washington, D.C.
Washington, D.C. Reagan-National Airport
Washington, D.C. Dulles Intl Airport