CA $206 Cheap Flights from Portland (PDX) to Washington (DCA)

View CA $206 flight on Wed, Oct. 29, 2025Opens in a new window

Popular airlines from Portland International Airport (PDX) to Ronald Reagan National Airport (DCA)

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 30% on select hotels after you book a flight*
  • payments icon

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap flights from Portland (PDX) to Washington (DCA)

Prices were available within the past 7 days and start at CA $206 for one-way flights and CA $409 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Wed, Oct. 29 - Tue, Nov. 11
PDX
Portland
DCA
Washington
CA $409 Roundtrip, found 4 days ago
CA $409
Roundtrip
found 4 days ago
Select Delta flight, departing Wed, Oct. 29 from Portland to Washington, returning Tue, Nov. 11, priced at CA $409 found 4 days ago
Alaska Airlines
Wed, Oct. 29 - Tue, Nov. 11
PDX
Portland
DCA
Washington
CA $427 Roundtrip, found 4 days ago
CA $427
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Wed, Oct. 29 from Portland to Washington, returning Tue, Nov. 11, priced at CA $427 found 4 days ago
American Airlines
Sat, Sep. 27 - Tue, Sep. 30
PDX
Portland
DCA
Washington
CA $436 Roundtrip, found 5 days ago
CA $436
Roundtrip
found 5 days ago
Select American Airlines flight, departing Sat, Sep. 27 from Portland to Washington, returning Tue, Sep. 30, priced at CA $436 found 5 days ago
American Airlines
Wed, Oct. 29 - Tue, Nov. 11
PDX
Portland
DCA
Washington
CA $437 Roundtrip, found 4 days ago
CA $437
Roundtrip
found 4 days ago
Select American Airlines flight, departing Wed, Oct. 29 from Portland to Washington, returning Tue, Nov. 11, priced at CA $437 found 4 days ago
Delta
Wed, Oct. 29 - Tue, Nov. 11
PDX
Portland
DCA
Washington
CA $438 Roundtrip, found 4 days ago
CA $438
Roundtrip
found 4 days ago
Select Delta flight, departing Wed, Oct. 29 from Portland to Washington, returning Tue, Nov. 11, priced at CA $438 found 4 days ago
Delta
Wed, Oct. 29 - Tue, Nov. 11
PDX
Portland
DCA
Washington
CA $441 Roundtrip, found 4 days ago
CA $441
Roundtrip
found 4 days ago
Select Delta flight, departing Wed, Oct. 29 from Portland to Washington, returning Tue, Nov. 11, priced at CA $441 found 4 days ago
Alaska Airlines
Wed, Oct. 29 - Tue, Nov. 11
PDX
Portland
DCA
Washington
CA $450 Roundtrip, found 4 days ago
CA $450
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Wed, Oct. 29 from Portland to Washington, returning Tue, Nov. 11, priced at CA $450 found 4 days ago
American Airlines
Wed, Oct. 29 - Tue, Nov. 11
PDX
Portland
DCA
Washington
CA $456 Roundtrip, found 4 days ago
CA $456
Roundtrip
found 4 days ago
Select American Airlines flight, departing Wed, Oct. 29 from Portland to Washington, returning Tue, Nov. 11, priced at CA $456 found 4 days ago
Delta
Sat, Sep. 27 - Tue, Sep. 30
PDX
Portland
DCA
Washington
CA $463 Roundtrip, found 5 days ago
CA $463
Roundtrip
found 5 days ago
Select Delta flight, departing Sat, Sep. 27 from Portland to Washington, returning Tue, Sep. 30, priced at CA $463 found 5 days ago
United
Mon, Sep. 1 - Tue, Sep. 2
PDX
Portland
DCA
Washington
CA $1,028 Roundtrip, found 3 days ago
CA $1,028
Roundtrip
found 3 days ago
Select United flight, departing Mon, Sep. 1 from Portland to Washington, returning Tue, Sep. 2, priced at CA $1,028 found 3 days ago

Find the cheapest month to fly from Portland (PDX) to Washington (DCA)

October is typically the cheapest month to fly

From CA $191 - CA $524 per traveller.

Graph displaying average flight prices per month

Flight from Portland to Washington (PDX - DCA) route information
Origin airport
Portland Intl.
Destination airport
Ronald Reagan Washington National
Airlines serving
Alaska Airlines, American Airlines, Delta
Roundtrip price
CA $409
Distance
3750 km
Average flight time
10 hours 19 mins

Portland to Washington Flights

The easy way to book your flights from Portland to Washington 

With Expedia, it’s simple to find and book flights to Washington from Portland whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are nonstop flights to Ronald Reagan Washington National, too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Portland to Washington today, tomorrow, or this week.  

 

Save dollars with cheap flights from Portland Intl., PDX to Ronald Reagan Washington National, DCA 

Sort your search results by price to find great deals on your flight from Portland to Washington—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Washington from Portland currently is just CA $409 rising to CA $1,028.  

Here are more money-saving tips: 

  • Fly in October when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to Washington  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to Washington from Portland 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Washington with Expedia today.

Frequently asked questions

How much is a flight from PDX Airport to Ronald Reagan Washington National Airport (DCA)?
Round-trip flights from PDX to DCA start from CA $409. This price is based on fares quoted within the last 7 days on Expedia for flights departing within the next year — book ASAP so you don't miss out. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from PDX Airport to Ronald Reagan Washington National Airport (DCA)?
The majority of flights can be cancelled online, but every air carrier has its own set of terms and conditions. If you do decide to cancel your flight, go to our Customer Service Portal and follow the instructions.
How do I find cheap flights from PDX Airport to DCA that have flexible change policies?
Plenty of airlines offer the option to reschedule your flight without a change fee. All you pay is the difference in the ticket price. When looking for Portland Intl. Airport (PDX) to Ronald Reagan Washington National Airport (DCA) flights, you'll find a "No change fees" filter for you to pick.
How many hours is the flight from PDX Airport to DCA?
Lasting around 6 hours and 40 minutes, the flight between Portland Airport and DCA is a great opportunity to do some last-minute trip planning. How about using some of this time to work on your itinerary for Arlington?
How far is the flight from PDX to Ronald Reagan Washington National Airport (DCA)?
Around 3,800 kilometres separates Portland and Arlington, so pack something to help you fill in a couple of hours. That action-packed novel you haven't had time to start will be ideal.
Which airlines fly direct from PDX Airport to National Airport?
A favourite with many savvy travellers, Alaska Airlines (AS) operates 30 flights monthly from Portland Intl. Airport (PDX) to National Airport. Pick the one that fits with your travel schedule and book your fare today.
Are Portland Intl. Airport (PDX) to Ronald Reagan Washington National Airport (DCA) flight tickets cheaper when they're purchased at the last minute?
Last-minute planners can sometimes pick up a bargain, with some super cheap airfares from Portland Airport to National Airport showing up a few weeks prior to the departure date. If you'd rather plan ahead, Expedia compares and updates the best flight deals frequently — as early as 12 months in advance in some cases. It depends on the carrier though, as not every airline advertises prices that far in advance.

Explore a world of travel with Expedia

*Available to Expedia members.