S$126 Cheap Flights from Portland to Washington

View S$126 flight on Sat, 30 Aug, 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 S$126 for one-way flights and S$456 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Thu, 21 Aug - Thu, 28 Aug
PDX
Portland
DCA
Washington
S$456 Return, found 2 days ago
S$456
Return
found 2 days ago
Select Delta flight, departing Thu, 21 Aug from Portland to Washington, returning Thu, 28 Aug, priced at S$456 found 2 days ago
Delta
Thu, 21 Aug - Thu, 28 Aug
PDX
Portland
DCA
Washington
S$482 Return, found 2 days ago
S$482
Return
found 2 days ago
Select Delta flight, departing Thu, 21 Aug from Portland to Washington, returning Thu, 28 Aug, priced at S$482 found 2 days ago
Delta
Thu, 21 Aug - Thu, 28 Aug
PDX
Portland
DCA
Washington
S$507 Return, found 2 days ago
S$507
Return
found 2 days ago
Select Delta flight, departing Thu, 21 Aug from Portland to Washington, returning Thu, 28 Aug, priced at S$507 found 2 days ago
Delta
Thu, 21 Aug - Thu, 28 Aug
PDX
Portland
DCA
Washington
S$533 Return, found 2 days ago
S$533
Return
found 2 days ago
Select Delta flight, departing Thu, 21 Aug from Portland to Washington, returning Thu, 28 Aug, priced at S$533 found 2 days ago
United
Thu, 21 Aug - Thu, 28 Aug
PDX
Portland
DCA
Washington
S$545 Return, found 2 days ago
S$545
Return
found 2 days ago
Select United flight, departing Thu, 21 Aug from Portland to Washington, returning Thu, 28 Aug, priced at S$545 found 2 days ago
Delta
Thu, 21 Aug - Thu, 28 Aug
PDX
Portland
DCA
Washington
S$558 Return, found 2 days ago
S$558
Return
found 2 days ago
Select Delta flight, departing Thu, 21 Aug from Portland to Washington, returning Thu, 28 Aug, priced at S$558 found 2 days ago
United
Thu, 21 Aug - Thu, 28 Aug
PDX
Portland
DCA
Washington
S$571 Return, found 2 days ago
S$571
Return
found 2 days ago
Select United flight, departing Thu, 21 Aug from Portland to Washington, returning Thu, 28 Aug, priced at S$571 found 2 days ago
Delta
Thu, 21 Aug - Thu, 28 Aug
PDX
Portland
DCA
Washington
S$584 Return, found 2 days ago
S$584
Return
found 2 days ago
Select Delta flight, departing Thu, 21 Aug from Portland to Washington, returning Thu, 28 Aug, priced at S$584 found 2 days ago
United
Thu, 21 Aug - Thu, 28 Aug
PDX
Portland
DCA
Washington
S$597 Return, found 2 days ago
S$597
Return
found 2 days ago
Select United flight, departing Thu, 21 Aug from Portland to Washington, returning Thu, 28 Aug, priced at S$597 found 2 days ago
American Airlines
Thu, 21 Aug - Thu, 28 Aug
PDX
Portland
DCA
Washington
S$622 Return, found 2 days ago
S$622
Return
found 2 days ago
Select American Airlines flight, departing Thu, 21 Aug from Portland to Washington, returning Thu, 28 Aug, priced at S$622 found 2 days ago

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

October is typically the cheapest month to fly

From S$176 - S$487 per traveller.

Graph displaying average flight prices per month

Portland to Washington route information
Origin airport
Portland Intl.
Destination airport
Ronald Reagan Washington National
Return price
S$456
Distance
3750 km
Average flight time
9 hours 9 mins

Perfect flights from Portland to Washington

Your Journey from Portland to Washington

Start your unforgettable journey with Expedia. Our broad selection of flights from Portland to Washington caters to every travel need. Whether you're yearning for a romantic escape, a solo adventure, or a cultural immersion, we've got you covered.
 

Choosing Your Ideal Flight

With Expedia, you have access to a wide range of airlines, including Delta, American Airlines, United. Our selection of flights from Portland Intl. to Ronald Reagan Washington National caters to every traveler's requirements, ensuring your journey aligns with your schedule. With options from 20 airlines, you're bound to find the perfect flight.
 

Maximizing Value with Portland to Washington Flights

Experience the joy of finding cheap flights from Portland Intl. to Ronald Reagan Washington National that fit your budget. Keep an eye out for our special deals and discounts, and check our flexible one-way fares from S$126 and roundtrip prices from S$456*.
 

Pre-Flight Essentials

Ensure a smooth journey from Portland to Washington with Expedia. From information about check-in times and in-flight amenities to guidance on baggage policies, we provide all the essentials to prepare you for your flight.
 

Experience the Vibrant Washington

Picture yourself stepping off the plane in Washington and immersing yourself in the unique atmosphere of . From local markets to cultural festivals, each city offers its distinct charm. Make the most of your trip by exploring local attractions and indulging in the local cuisine. With Expedia, explore all this and more, tailored to your budget.
 

Added Convenience on Your Portland to Washington Flight

Traveling with Expedia is more than just a flight. We offer details about in-flight amenities, baggage policies, and more to ensure a smooth and hassle-free journey. Choose from our variety of airlines and embark on a memorable journey from Portland to Washington.
 

Beyond the Flight – Exploring Washington

With Expedia, your adventure extends beyond the flight. Explore Washington at your own pace by renting a car or booking a hotel. Discover hidden gems off the beaten path and create unforgettable memories.
 

Book Your Flight from Portland to Washington with Confidence

Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support make your travel experience seamless and stress-free. Embark on your journey from Portland to Washington with confidence. Book your travel arrangements with Expedia today.
 
*Note: Prices may vary based on availability and are subject to change.

Frequently asked questions

How much is a flight from PDX to National Airport?
The lowest price advertised for a round-trip journey from Portland Intl. Airport (PDX) to Ronald Reagan Washington National Airport (DCA) is S$456. But you better act quick. This price is based on fares listed within the last 7 days on Expedia for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Portland Intl. Airport (PDX) to DCA?
We understand that life can throw the odd curveball, so we've made it as hassle-free as possible for you to cancel your trip online. Just visit the Customer Service Portal and follow the instructions.
How do I find cheap flights from Portland Intl. Airport (PDX) to DCA that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for PDX Airport to DCA flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Portland Intl. Airport (PDX) to National Airport?
The flight distance from Portland to Arlington is 3,800 kilometres. Bring a drink, some snacks and an interesting book to read. Keep yourself busy in the air and the time will fly by.
Which airlines fly direct from Portland Airport to Ronald Reagan Washington National Airport (DCA)?
Alaska Airlines (AS) will get you from Portland Airport to DCA comfortably and reliably. You can choose from 30 flights every month along this route.
Are Portland Intl. Airport (PDX) to Ronald Reagan Washington National Airport (DCA) flight tickets cheaper when they're purchased at the last minute?
Flight prices from PDX Airport to Ronald Reagan Washington National Airport (DCA) are available up to 12 months before departure on Expedia. And although you may score great last-minute deal, it's not something you should bank on. Also, booking your flights ahead of time means you'll have more options --- and you can avoid being wedged in the dreaded middle seat! We frequently update our fares to bring you the best bargains, so check back often for all the latest specials.

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