$94 Cheap Flights from Portland (PDX) to Washington (DCA)

View $94 flight on Wed, May 21, 2025Opens in a new window

Popular airlines from Portland International Airport (PDX) to Ronald Reagan Washington 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*
  • one key icon
    Earn twice
    Earn your airline miles on top of our OneKeyCash
    Learn about One Key
Find available prices by choosing your travel dates.

Cheap Flights from Portland to Washington (PDX-DCA)

Prices were available within the past 7 days and start at $94 for one-way flights and $188 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Tue, Apr 29 - Wed, Apr 30
PDX
Portland
DCA
Washington
$188 Roundtrip, just found
$188
Roundtrip
just found
Select Frontier Airlines flight, departing Tue, Apr 29 from Portland to Washington, returning Wed, Apr 30, priced at $188 just found
Frontier Airlines
Tue, Apr 29 - Fri, May 2
PDX
Portland
DCA
Washington
$198 Roundtrip, just found
$198
Roundtrip
just found
Select Frontier Airlines flight, departing Tue, Apr 29 from Portland to Washington, returning Fri, May 2, priced at $198 just found
Frontier Airlines
Wed, May 28 - Wed, Jun 4
PDX
Portland
DCA
Washington
$208 Roundtrip, just found
$208
Roundtrip
just found
Select Frontier Airlines flight, departing Wed, May 28 from Portland to Washington, returning Wed, Jun 4, priced at $208 just found
Frontier Airlines
Wed, May 14 - Mon, May 19
PDX
Portland
DCA
Washington
$218 Roundtrip, just found
$218
Roundtrip
just found
Select Frontier Airlines flight, departing Wed, May 14 from Portland to Washington, returning Mon, May 19, priced at $218 just found
Frontier Airlines
Fri, Apr 25 - Fri, May 2
PDX
Portland
DCA
Washington
$228 Roundtrip, just found
$228
Roundtrip
just found
Select Frontier Airlines flight, departing Fri, Apr 25 from Portland to Washington, returning Fri, May 2, priced at $228 just found
Frontier Airlines
Fri, Apr 25 - Sat, Apr 26
PDX
Portland
DCA
Washington
$238 Roundtrip, just found
$238
Roundtrip
just found
Select Frontier Airlines flight, departing Fri, Apr 25 from Portland to Washington, returning Sat, Apr 26, priced at $238 just found
Alaska Airlines
Thu, May 29 - Sat, May 31
PDX
Portland
DCA
Washington
$261 Roundtrip, found 17 hours ago
$261
Roundtrip
found 17 hours ago
Select Alaska Airlines flight, departing Thu, May 29 from Portland to Washington, returning Sat, May 31, priced at $261 found 17 hours ago
Delta
Sat, May 31 - Sat, Jun 7
PDX
Portland
DCA
Washington
$269 Roundtrip, found 5 hours ago
$269
Roundtrip
found 5 hours ago
Select Delta flight, departing Sat, May 31 from Portland to Washington, returning Sat, Jun 7, priced at $269 found 5 hours ago
JetBlue Airways
Tue, Jul 8 - Tue, Jul 15
PDX
Portland
DCA
Washington
$279 Roundtrip, found 6 hours ago
$279
Roundtrip
found 6 hours ago
Select JetBlue Airways flight, departing Tue, Jul 8 from Portland to Washington, returning Tue, Jul 15, priced at $279 found 6 hours ago
American Airlines
Sat, May 31 - Mon, Jun 2
PDX
Portland
DCA
Washington
$351 Roundtrip, found 17 hours ago
$351
Roundtrip
found 17 hours ago
Select American Airlines flight, departing Sat, May 31 from Portland to Washington, returning Mon, Jun 2, priced at $351 found 17 hours ago
Flights from Portland (PDX) to Washington (DCA)
Origin airport
Portland Intl.
Destination airport
Ronald Reagan Washington National
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, JetBlue Airways, Southwest Airlines, United
Roundtrip price
$188
Distance
2343 mi

Portland to Washington Flights

The cheapest times to fly from Portland to Washington

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Portland to Washington are during the month of April. You can find some of the cheapest flights from Portland to Washington with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Portland to Washington

Sunday is one of the best days to book for cheap flights from Portland to Washington: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from Portland to Washington

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Portland to Washington in 2025. You can also book with separate airlines for your outbound and return journeys, from $94 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Portland to Washington flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your Portland to Washington airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Frequently asked questions

How long does it take to fly from PDX Airport to Ronald Reagan Washington National Airport (DCA)?
Alaska Airlines operates a direct flight leaving Portland Intl. Airport (PDX) at 9:28AM and reaching National Airport at 5:38PM — a total flight time of 5 hours and 10 minutes. Pick your favorite seat, bring something to keep you entertained and the time will zip by.
Is it cheaper to buy a plane ticket from PDX to Ronald Reagan Washington National Airport (DCA) last minute?
Being spontaneous is a fabulous way to discover the world, but it’s not always the best way to nab a bargain plane ticket. Think about booking your PDX to Ronald Reagan Washington National Airport (DCA) trip ahead of time instead of leaving it to the last minute. Based on flight pricing and demand studies in 2022, we have found that the best time to book domestic flights is between 28 – 35 days ahead of the departure date, and international flights three to four months in advance. Save up that spontaneity for when you get to Ronald Reagan Washington National Airport (DCA)!
What airline has the least delays from Portland Intl. Airport (PDX) to DCA?
Depart with Alaska Airlines from Portland Intl. Airport (PDX) to National Airport and hit the tarmac at the time listed on your boarding card. This airline leads the way on this route, with 78% of services arriving on time. If your flight is delayed for whatever reason, the Expedia App is the perfect way to stay in the loop. Our popular app provides immediate trip alerts, from flight delays to gate changes and which carousel to collect your baggage.
What airports do you fly into for Washington from Portland?
With Ronald Reagan Washington National Airport (DCA), Washington Dulles Intl. Airport (IAD) and Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to select from, getting from Portland to Washington is a piece of cake. The city’s key hub, Ronald Reagan Washington National Airport (DCA), is about 4 mi south of the downtown area. As well as ticket costs, consider things like transportation options from the airport and the distance to your hotel when deciding where to land. Get your Washington vacation off to an exciting start by exploring White House and United States Capitol.
What are the most popular departure times for flights from PDX to DCA?
The most popular departure times for flights from PDX to DCA are between 9:00 AM - 10:00 AM on Alaska Airlines. Our advice is to jet out in the morning. The earlier you take off, the better your odds of a delay-free flight with less air traffic in the skies.
Can I change the date of my flight from PDX to DCA?
Quickly make changes to your Portland Intl. Airport (PDX) to DCA journey through the Expedia Trips portal. Before making any amendments, check the rules and conditions in your itinerary to learn what the airline will let you do and what fees apply for changes. Some carriers charge a change fee per person, on top of any difference in ticket prices. But if you booked in the last 24 hours, you may be able to cancel for free and arrange new flights. You can also check out our Customer Service portal for more information and to connect with our Virtual Agent.

Explore a world of travel with Expedia

*Available to One Key members.