$150 Cheap Flights from Portland (PDX) to Washington (DCA)

View $150 flight on Tue, Aug 12, 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 $150 for one-way flights and $204 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Southwest Airlines
Tue, Aug 26 - Thu, Sep 11
PDX
Portland
DCA
Washington
$204 Roundtrip, found 5 days ago
$204
Roundtrip
found 5 days ago
Select Southwest Airlines flight, departing Tue, Aug 26 from Portland to Washington, returning Thu, Sep 11, priced at $204 found 5 days ago
Southwest Airlines
Mon, Oct 27 - Wed, Oct 29
PDX
Portland
DCA
Washington
$209 Roundtrip, found 6 days ago
$209
Roundtrip
found 6 days ago
Select Southwest Airlines flight, departing Mon, Oct 27 from Portland to Washington, returning Wed, Oct 29, priced at $209 found 6 days ago
Southwest Airlines
Tue, Sep 2 - Mon, Sep 8
PDX
Portland
DCA
Washington
$214 Roundtrip, found 6 days ago
$214
Roundtrip
found 6 days ago
Select Southwest Airlines flight, departing Tue, Sep 2 from Portland to Washington, returning Mon, Sep 8, priced at $214 found 6 days ago
Southwest Airlines
Wed, Aug 20 - Fri, Aug 22
PDX
Portland
DCA
Washington
$217 Roundtrip, found 6 days ago
$217
Roundtrip
found 6 days ago
Select Southwest Airlines flight, departing Wed, Aug 20 from Portland to Washington, returning Fri, Aug 22, priced at $217 found 6 days ago
Frontier Airlines
Sat, Aug 23 - Tue, Aug 26
PDX
Portland
DCA
Washington
$276 Roundtrip, found 3 days ago
$276
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Sat, Aug 23 from Portland to Washington, returning Tue, Aug 26, priced at $276 found 3 days ago
JetBlue Airways
Tue, Aug 5 - Mon, Aug 11
PDX
Portland
DCA
Washington
$279 Roundtrip, found 5 hours ago
$279
Roundtrip
found 5 hours ago
Select JetBlue Airways flight, departing Tue, Aug 5 from Portland to Washington, returning Mon, Aug 11, priced at $279 found 5 hours ago
Frontier Airlines
Fri, Sep 5 - Tue, Sep 9
PDX
Portland
DCA
Washington
$281 Roundtrip, found 3 days ago
$281
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Fri, Sep 5 from Portland to Washington, returning Tue, Sep 9, priced at $281 found 3 days ago
Bargain Flight
Wed, Oct 1 - Sat, Oct 4
PDX
Portland
DCA
Washington
$293 Roundtrip, just found
$293
Roundtrip
just found
Select Bargain Flight flight, departing Wed, Oct 1 from Portland to Washington, returning Sat, Oct 4, priced at $293 just found
Frontier Airlines
Sat, Jul 19 - Mon, Aug 25
PDX
Portland
DCA
Washington
$296 Roundtrip, found 2 days ago
$296
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Sat, Jul 19 from Portland to Washington, returning Mon, Aug 25, priced at $296 found 2 days ago
Hawaiian Airlines
Sat, Oct 4 - Tue, Oct 7
PDX
Portland
DCA
Washington
$297 Roundtrip, just found
$297
Roundtrip
just found
Select Hawaiian Airlines flight, departing Sat, Oct 4 from Portland to Washington, returning Tue, Oct 7, priced at $297 just found

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
$204
Distance
2343 mi
Average flight time
9 hours 27 mins

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 October 4 2025. Prices were last updated on July 12 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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