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

View $92 flight on Wed, Sep 10, 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 $183 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Mon, Aug 11 - Mon, Aug 18
PDX
Portland
DCA
Washington
$183 Roundtrip, found 2 hours ago
$183
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Mon, Aug 11 from Portland to Washington, returning Mon, Aug 18, priced at $183 found 2 hours ago
Southwest Airlines
Wed, Oct 1 - Sat, Oct 4
PDX
Portland
DCA
Washington
$183 Roundtrip, found 6 hours ago
$183
Roundtrip
found 6 hours ago
Select Southwest Airlines flight, departing Wed, Oct 1 from Portland to Washington, returning Sat, Oct 4, priced at $183 found 6 hours ago
Southwest Airlines
Wed, Oct 1 - Sat, Oct 4
PDX
Portland
DCA
Washington
$184 Roundtrip, found 6 hours ago
$184
Roundtrip
found 6 hours ago
Select Southwest Airlines flight, departing Wed, Oct 1 from Portland to Washington, returning Sat, Oct 4, priced at $184 found 6 hours ago
American Airlines
Thu, Aug 21 - Tue, Aug 26
PDX
Portland
DCA
Washington
$184 Roundtrip, found 8 hours ago
$184
Roundtrip
found 8 hours ago
Select American Airlines flight, departing Thu, Aug 21 from Portland to Washington, returning Tue, Aug 26, priced at $184 found 8 hours ago
American Airlines
Mon, Aug 11 - Mon, Aug 18
PDX
Portland
DCA
Washington
$185 Roundtrip, found 2 hours ago
$185
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Mon, Aug 11 from Portland to Washington, returning Mon, Aug 18, priced at $185 found 2 hours ago
American Airlines
Wed, Oct 15 - Tue, Oct 21
PDX
Portland
DCA
Washington
$187 Roundtrip, found 11 hours ago
$187
Roundtrip
found 11 hours ago
Select American Airlines flight, departing Wed, Oct 15 from Portland to Washington, returning Tue, Oct 21, priced at $187 found 11 hours ago
American Airlines
Sat, Nov 1 - Tue, Nov 4
PDX
Portland
DCA
Washington
$188 Roundtrip, found 7 hours ago
$188
Roundtrip
found 7 hours ago
Select American Airlines flight, departing Sat, Nov 1 from Portland to Washington, returning Tue, Nov 4, priced at $188 found 7 hours ago
Delta
Thu, Oct 2 - Tue, Oct 7
PDX
Portland
DCA
Washington
$191 Roundtrip, found 5 hours ago
$191
Roundtrip
found 5 hours ago
Select Delta flight, departing Thu, Oct 2 from Portland to Washington, returning Tue, Oct 7, priced at $191 found 5 hours ago
JetBlue Airways
Wed, Aug 6 - Tue, Aug 12
PDX
Portland
DCA
Washington
$279 Roundtrip, found 22 hours ago
$279
Roundtrip
found 22 hours ago
Select JetBlue Airways flight, departing Wed, Aug 6 from Portland to Washington, returning Tue, Aug 12, priced at $279 found 22 hours ago
Alaska Airlines
Sat, Nov 1 - Tue, Nov 4
PDX
Portland
DCA
Washington
$297 Roundtrip, found 7 hours ago
$297
Roundtrip
found 7 hours ago
Select Alaska Airlines flight, departing Sat, Nov 1 from Portland to Washington, returning Tue, Nov 4, priced at $297 found 7 hours 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

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
$182
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 August. 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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