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Cheap flights from Portland to Washington, D.C. from $82

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 7/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Portland to Washington, D.C.

Cheap round-trip flights

American Airlines Logo
9:52 pm - 10:21 amPDX-BWI
9h 29m1 stop
American Airlines Logo
6:13 pm - 11:06 pmBWI-PDX
7h 53m1 stop
$179American Airlines
Find Deal
Mon, Oct 20 - Wed, Oct 22
American Airlines Logo
11:59 pm - 10:44 amPDX-DCA
7h 45m1 stop
American Airlines Logo
6:30 am - 10:54 amDCA-PDX
7h 24m1 stop
$183American Airlines
Find Deal
Mon, Aug 25 - Wed, Sep 3
Alaska Airlines Logo
1:24 pm - 12:23 amPDX-IAD
7h 59m1 stop
Alaska Airlines Logo
6:09 pm - 10:47 pmIAD-PDX
7h 38m1 stop
$210Alaska Airlines
Find Deal
Wed, Sep 17 - Mon, Sep 22
Frontier Logo
6:35 am - 4:31 pmPDX-BWI
6h 56m1 stop
Frontier Logo
5:26 pm - 12:15 amBWI-PDX
9h 49m1 stop
$214Frontier
Find Deal
Mon, Jul 21 - Fri, Jul 25
Spirit Airlines Logo
12:07 pm - 5:24 amPDX-BWI
14h 17m1 stop
Spirit Airlines Logo
8:15 am - 7:04 pmBWI-PDX
13h 49m1 stop
$221Spirit Airlines
Find Deal
Fri, Oct 3 - Mon, Oct 6
Spirit Airlines Logo
3:10 pm - 6:05 amPDX-BWI
11h 55m1 stop
Spirit Airlines Logo
8:09 am - 6:57 pmBWI-PDX
13h 48m1 stop
$223Spirit Airlines
Find Deal
Thu, Aug 7 - Thu, Aug 14
Frontier Logo
6:16 pm - 6:34 amPDX-IAD
9h 18m1 stop
Frontier Logo
7:30 am - 5:26 pmIAD-PDX
12h 56m1 stop
$224Frontier
Find Deal
Sun, Aug 10 - Sun, Aug 17
Alaska Airlines Logo
9:30 pm - 7:33 amPDX-IAD
7h 03m1 stop
Alaska Airlines Logo
6:09 pm - 10:47 pmIAD-PDX
7h 38m1 stop
$256Alaska Airlines
Find Deal
Thu, Sep 25 - Mon, Sep 29
United Airlines Logo
11:59 pm - 1:51 pmPDX-IAD
10h 52m1 stop
United Airlines Logo
5:45 pm - 8:20 pmIAD-PDX
5h 35mnonstop
$280United Airlines
Find Deal
Fri, Oct 17 - Sat, Oct 18
United Airlines Logo
11:20 pm - 7:18 amPDX-IAD
4h 58mnonstop
United Airlines Logo
3:55 pm - 10:25 pmIAD-PDX
9h 30m1 stop
$303United Airlines
Find Deal
Tue, Aug 12 - Tue, Aug 19

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
Aug 1
PDX11:59 pmPortland
8h 44m
1 stop
IAD11:43 amWashington, D.C. Dulles Intl
Aug 10
IAD11:04 amWashington, D.C. Dulles Intl
14h 42m
1 stop
PDX10:46 pmPortland
Sun Country Air
Jul 22
PDX6:28 pmPortland
14h 15m
1 stop
IAD11:43 amWashington, D.C. Dulles Intl
Jul 27
IAD12:40 pmWashington, D.C. Dulles Intl
13h 06m
1 stop
PDX10:46 pmPortland
Sun Country Air
Jul 15
PDX6:28 pmPortland
13h 57m
1 stop
IAD11:25 amWashington, D.C. Dulles Intl
Jul 30
IAD12:40 pmWashington, D.C. Dulles Intl
7h 36m
1 stop
PDX5:16 pmPortland

Southwest flights from Portland to Washington, D.C.

Our best Southwest deals on Portland to Washington, D.C. flight tickets
Southwest
Sep 20
PDX5:35 amPortland
7h 45m
1 stop
IAD4:20 pmWashington, D.C. Dulles Intl
Sep 30
IAD2:25 pmWashington, D.C. Dulles Intl
9h 05m
1 stop
PDX8:30 pmPortland
Southwest
Sep 20
PDX7:25 amPortland
12h 25m
2 stops
IAD10:50 pmWashington, D.C. Dulles Intl
Sep 30
IAD2:25 pmWashington, D.C. Dulles Intl
9h 05m
1 stop
PDX8:30 pmPortland
Southwest
Sep 20
PDX7:25 amPortland
12h 25m
2 stops
IAD10:50 pmWashington, D.C. Dulles Intl
Sep 30
IAD2:25 pmWashington, D.C. Dulles Intl
10h 30m
2 stops
PDX9:55 pmPortland

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 cheapest month to fly to Washington, D.C.?

The month of August is, on average, the cheapest month to fly to Washington, D.C. from Portland, with most prices found around $332. If you’re not able to fly to Washington, D.C. in August, then February is your next best option. Flight prices from Portland to Washington, D.C. during February average around $336.

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 Friday. momondo users have found tickets for Friday departures for as low as $518. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Portland to Washington, D.C. for around $712.

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

In the afternoon is the cheapest time of day to fly from Portland to Washington, D.C. when you can find flight prices for as low as $269. Flying to Washington, D.C. in the afternoon 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 $598. 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 Baltimore/Washington 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 $515 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 $377 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 37% 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 July 2025, prices for Portland to Washington, D.C. flights are approximately 54% cheaper 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

$82

Fastest flight time

4h 57m

Direct flights

Every day

Airports in Washington, D.C.

3 airports
The best one-way flight to Washington, D.C. from Portland in the past 72 hours is $82. The best round-trip flight deal from Portland to Washington, D.C. found on momondo in the last 72 hours is $179.
The fastest flight from Portland to Washington, D.C. takes 4h 57m
Direct flights go from Portland to Washington, D.C. every day.
There are 3 airports near Washington, D.C.: Washington, D.C. Reagan-National (DCA), Baltimore/Washington (BWI), Washington, D.C. Dulles Intl (IAD)

  • 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 58m.

  • 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 $94Free CancellationRating
6.3
8,064 reviews
Search Spirit Airlines flights
FrontierPriceFrom $100Free CancellationRating
5.9
3,273 reviews
Search Frontier flights
United AirlinesPriceFrom $236Free CancellationRating
7.4
8,844 reviews
Search United Airlines flights
DeltaPriceFrom $254Free CancellationRating
8.0
7,962 reviews
Search Delta flights
American AirlinesPriceFrom $298Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Hawaiian AirlinesPriceFrom $299Free CancellationRating
7.8
2,552 reviews
Search Hawaiian Airlines flights
Alaska AirlinesPriceFrom $338Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights
SouthwestPriceFrom $353Free CancellationRating
8.0
4,258 reviews
Search Southwest flights
  • Alaska Airlines Flights From Portland to Washington, D.C.

    Alaska Airlines flight deals from Portland to Washington, D.C. start from $338 round-trip. Over the 7 Alaska Airlines flights for this route in a normal week, average airfare is usually $558 round-trip - but some users have found much cheaper deals with momondo.

  • Southwest Flights From Portland to Washington, D.C.

    Another popular option for Portland to Washington, D.C. flights is Southwest (8.0/10, 4,258 ratings). Southwest flies from Portland to Washington, D.C. around 5 times per week, with deals starting from $353 round-trip and rising to an average price of around $525.


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

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

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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1 adult
Sun 7/13
Sun 7/20

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.