$92 Cheap Flights from Portland (PDX) to Washington (DCA)

View $92 flight on Sat, Sep 13, 2025Opens in a new window

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

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Cheap Flights from Portland to Washington (PDX-DCA)

Prices were available within the past 7 days and start at $92 for one-way flights and $219 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Southwest Airlines
Sat, Sep 13 - Mon, Sep 15
PDX
Portland
DCA
Washington
$219 Roundtrip, just found
$219
Roundtrip
just found
Select Southwest Airlines flight, departing Sat, Sep 13 from Portland to Washington, returning Mon, Sep 15, priced at $219 just found
Frontier Airlines
Fri, Sep 5 - Wed, Sep 10
PDX
Portland
DCA
Washington
$233 Roundtrip, found 6 days ago
$233
Roundtrip
found 6 days ago
Select Frontier Airlines flight, departing Fri, Sep 5 from Portland to Washington, returning Wed, Sep 10, priced at $233 found 6 days ago
Frontier Airlines
Fri, Aug 22 - Wed, Sep 10
PDX
Portland
DCA
Washington
$234 Roundtrip, found 6 days ago
$234
Roundtrip
found 6 days ago
Select Frontier Airlines flight, departing Fri, Aug 22 from Portland to Washington, returning Wed, Sep 10, priced at $234 found 6 days ago
Frontier Airlines
Mon, Jul 28 - Mon, Aug 11
PDX
Portland
DCA
Washington
$235 Roundtrip, found 6 days ago
$235
Roundtrip
found 6 days ago
Select Frontier Airlines flight, departing Mon, Jul 28 from Portland to Washington, returning Mon, Aug 11, priced at $235 found 6 days ago
Frontier Airlines
Tue, Aug 26 - Sun, Aug 31
PDX
Portland
DCA
Washington
$236 Roundtrip, found 4 days ago
$236
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Tue, Aug 26 from Portland to Washington, returning Sun, Aug 31, priced at $236 found 4 days ago
Frontier Airlines
Sat, Jul 12 - Sat, Aug 16
PDX
Portland
DCA
Washington
$240 Roundtrip, found 3 days ago
$240
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Sat, Jul 12 from Portland to Washington, returning Sat, Aug 16, priced at $240 found 3 days ago
Frontier Airlines
Thu, Sep 4 - Mon, Sep 8
PDX
Portland
DCA
Washington
$245 Roundtrip, found 3 days ago
$245
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Thu, Sep 4 from Portland to Washington, returning Mon, Sep 8, priced at $245 found 3 days ago
JetBlue Airways
Tue, Aug 5 - Wed, Aug 13
PDX
Portland
DCA
Washington
$279 Roundtrip, found 14 hours ago
$279
Roundtrip
found 14 hours ago
Select JetBlue Airways flight, departing Tue, Aug 5 from Portland to Washington, returning Wed, Aug 13, priced at $279 found 14 hours ago
Delta
Fri, Oct 10 - Tue, Oct 14
PDX
Portland
DCA
Washington
$280 Roundtrip, just found
$280
Roundtrip
just found
Select Delta flight, departing Fri, Oct 10 from Portland to Washington, returning Tue, Oct 14, priced at $280 just found
Hawaiian Airlines
Wed, Sep 10 - Tue, Sep 16
PDX
Portland
DCA
Washington
$297 Roundtrip, found 1 hour ago
$297
Roundtrip
found 1 hour ago
Select Hawaiian Airlines flight, departing Wed, Sep 10 from Portland to Washington, returning Tue, Sep 16, priced at $297 found 1 hour ago

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

October is typically the cheapest month to fly

From $138 - $383 per traveler.

Graph displaying average flight prices per month

Alternative airports near Washington

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Baltimore Washington Intl. Thurgood Marshall BWI. Cheapest option available. Average driving time to city center is 40 minutes. Flights from $360
BWI
Baltimore Washington Intl. Thurgood Marshall
Cheapest
Average driving time to city center40 min
Flights from $360
Select flight to Washington Dulles Intl. IAD. Average driving time to city center is 36 minutes. Flights from $422
IAD
Washington Dulles Intl.
Average driving time to city center36 min
Flights from $422
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
$209
Distance
2343 mi
Average flight time
9 hours 9 mins

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 September. 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 $92 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 much does a flight from Portland Intl. Airport (PDX) to Ronald Reagan Washington National Airport (DCA) cost?
Discover the latest flight deals from PDX to DCA by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from PDX to DCA?
The cheapest flights from PDX to DCA are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Portland Intl. Airport (PDX) to Ronald Reagan Washington National Airport (DCA)?
You can fly straight from Portland Intl. Airport (PDX) to Ronald Reagan Washington National Airport (DCA) on an Alaska Airlines flight.
What is the cheapest airline that flies from PDX to DCA?
Fly from PDX to DCA with Alaska Airlines. This airline currently offers the cheapest one-way ticket for this route, starting at $169. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from PDX on September 27 2025. Prices were last updated on July 4 2025 and have not changed since.
How many flights per day from Portland Intl. Airport (PDX) to Ronald Reagan Washington National Airport (DCA)?
On average, there's only 1 direct flight leaving from Portland Intl. Airport (PDX) to Ronald Reagan Washington National Airport (DCA) every day. If this doesn't fit your plans, check out flights with a layover. Just customize your search on Expedia to include one stop or more to find a better alternative.
What are the most popular departure times for flights from Portland Intl. Airport (PDX) to Ronald Reagan Washington National Airport (DCA)?
The 9 AM departures from PDX to DCA are the top choice for many travelers. They can also be more expensive. If you want to save on your fare, book during off-peak hours.
What day of the week has the most flights from PDX to DCA?
If you fly on a Friday, you'll get the largest range of options for flights from Portland Intl. Airport (PDX) to Ronald Reagan Washington National Airport (DCA).
What is the earliest flight from Portland Intl. Airport (PDX) to Ronald Reagan Washington National Airport (DCA)?
Portland Intl. Airport (PDX)'s earliest flight to Ronald Reagan Washington National Airport (DCA) is at approximately 9:55AM UTC-8. With a total travel time of 4h 58m, you'll land at around 5:53PM UTC-5.
How long does it take to fly from Portland Intl. Airport (PDX) to Ronald Reagan Washington National Airport (DCA)?
Flights from PDX to DCA have an average travel time of 4 hours and 58 minutes. The distance between the two airports is 2,300 mi.
What is the best time to fly from Portland Intl. Airport (PDX) to Ronald Reagan Washington National Airport (DCA)?
To land at Ronald Reagan Washington National Airport (DCA) without delays, book a flight that takes off from Portland Intl. Airport (PDX) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Washington from Portland Intl. Airport (PDX)?
Ronald Reagan Washington National Airport (DCA) is the only airport in Washington with direct flights from Portland Intl. Airport (PDX). Consider the options and find cheap fares on Expedia.
Is it cheaper to buy a plane ticket from Portland Intl. Airport (PDX) to Ronald Reagan Washington National Airport (DCA) last-minute?
Last-minute fares from PDX to DCA are usually more expensive. To lock in the cheapest rates, start searching for flights early. That being said, if your travel plans are flexible, it's possible to find a cheap fare right before your journey.
Is it cheaper to book a PDX to DCA flight and hotel package?
Compared with arranging hotels and flights separately, booking a PDX to DCA flight and hotel package with Expedia could lead to significant savings. Better yet, having everything in one place takes the hassle out of planning your trip. Just secure your flights and select from our wide range of hotels, then tailor your trip with extras like car rentals and activities.
Can I cancel or change the date of my flight from Portland Intl. Airport (PDX) to Ronald Reagan Washington National Airport (DCA)?
In most instances, you can cancel or modify your PDX to DCA flight. However, additional fees may apply, especially if you booked over 24 hours ago. Double-check your itinerary for the airline's rules and fees on flight changes, or if you want more details, head to our Customer Service portal.

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