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

View AU$289 flight on Wed, 30 Sept 2026Opens in a new window

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

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

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Wed, 30 Sept - Wed, 7 Oct
PDX
Portland
DCA
Washington
AU$564 Return, found 9 hours ago
AU$564
Return
found 9 hours ago
Select American Airlines flight, departing Wed, 30 Sept from Portland to Washington, returning Wed, 7 Oct, priced at AU$564 found 9 hours ago
Delta
Wed, 30 Sept - Wed, 7 Oct
PDX
Portland
DCA
Washington
AU$578 Return, found 9 hours ago
AU$578
Return
found 9 hours ago
Select Delta flight, departing Wed, 30 Sept from Portland to Washington, returning Wed, 7 Oct, priced at AU$578 found 9 hours ago
American Airlines
Wed, 30 Sept - Wed, 7 Oct
PDX
Portland
DCA
Washington
AU$619 Return, found 9 hours ago
AU$619
Return
found 9 hours ago
Select American Airlines flight, departing Wed, 30 Sept from Portland to Washington, returning Wed, 7 Oct, priced at AU$619 found 9 hours ago
Delta
Wed, 30 Sept - Wed, 7 Oct
PDX
Portland
DCA
Washington
AU$643 Return, found 9 hours ago
AU$643
Return
found 9 hours ago
Select Delta flight, departing Wed, 30 Sept from Portland to Washington, returning Wed, 7 Oct, priced at AU$643 found 9 hours ago
Delta
Wed, 30 Sept - Wed, 7 Oct
PDX
Portland
DCA
Washington
AU$656 Return, found 9 hours ago
AU$656
Return
found 9 hours ago
Select Delta flight, departing Wed, 30 Sept from Portland to Washington, returning Wed, 7 Oct, priced at AU$656 found 9 hours ago

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

August is typically the cheapest month to fly

From AU$400 - AU$684 per traveller.

Frequently asked questions

How much does a flight from Portland, OR (PDX-Portland Intl.) to Washington, DC (DCA-Ronald Reagan Washington National) cost?
You can find one-way and return flights from PDX to DCA with Expedia. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see our cheapest fares first, and use the Price Tracking tool to receive alerts when PDX to DCA ticket fares go up or down.
What is the cheapest month to fly from Portland, OR (PDX) to Washington, DC (DCA)?
The cheapest months to fly from Portland, OR (PDX) to Washington, DC (DCA) are typically during off-peak season when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you are able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Portland, OR (PDX-Portland Intl.) to Washington, DC (DCA-Ronald Reagan Washington National)?
Enter PDX to DCA and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
How do I find cheap flights from Portland, OR (PDX) to Washington, DC (DCA)?
To find a cheap flight from Portland, OR (PDX) to Washington, DC (DCA), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Portland, OR (PDX-Portland Intl.) to Washington, DC (DCA-Ronald Reagan Washington National)?
The best airline to fly with from Portland, OR (PDX-Portland Intl.) to Washington, DC (DCA-Ronald Reagan Washington National) will differ from traveler to traveler. If you like to fly early, Alaska Airlines offers early morning flights. If price is the most important factor, Alaska Airlines typically offers the lowest fares. American Airlines offers the most daily flights from Portland, OR (PDX-Portland Intl.) to Washington, DC (DCA-Ronald Reagan Washington National), which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Portland, OR (PDX-Portland Intl.) to Washington, DC (DCA-Ronald Reagan Washington National)?
The cheapest months to fly from Portland International Airport (PDX) to Ronald Reagan Washington National (DCA) are typically January and September, with average return flights around AU$576. While August is the most popular month for this route, offering plenty of flight options, it's not the cheapest. If you're looking for the best balance of good fares and a wide selection of flights, aiming for January or September will likely give you a better deal.
How many flights per day from Portland, OR (PDX-Portland Intl.) to Washington, DC (DCA-Ronald Reagan Washington National)?
While there aren't any nonstop flights from Portland, OR (PDX-Portland Intl.) to Washington, DC (DCA-Ronald Reagan Washington National), you'll find approximately 66 connecting flights per day. This gives you plenty of options to choose from. Some common connection points include O'Hare Intl. (ORD), Seattle - Tacoma Intl. (SEA), and Dallas-Fort Worth Intl. (DFW).
What is the earliest flight from Portland, OR (PDX-Portland Intl.) to Washington, DC (DCA-Ronald Reagan Washington National)?
The earliest flight from Portland, OR (PDX-Portland Intl.) to Washington, DC (DCA-Ronald Reagan Washington National) typically departs around 12:05 AM local time. This flight is operated by American Airlines and is a seasonal service active in June and July. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Portland, OR (PDX-Portland Intl.) to Washington, DC (DCA-Ronald Reagan Washington National)?
You'll typically find the most flights from Portland, OR (PDX-Portland Intl.) to Washington, DC (DCA-Ronald Reagan Washington National) on a Thursday, with around 51 flights available. This gives you a good selection for your travel plans. Major airlines on this route include Alaska Airlines, American Airlines, and United. Flight schedules are quite consistent throughout the week, with Thursday offering only slightly more options than other days.
What are the most popular departure times for flights from Portland, OR (PDX-Portland Intl.) to Washington, DC (DCA-Ronald Reagan Washington National)?
The most popular departure times for flights from Portland Intl. (PDX) to Ronald Reagan Washington National (DCA) are in the early morning, from 6am to 9am. Many major carriers, including Alaska Airlines, American Airlines and United, offer flights during this window. Many travellers prefer these times because it allows for an early start to their travel day, getting them to their destination with plenty of time left in the day.
How long does it take to fly from Portland, OR (PDX-Portland Intl.) to Washington, DC (DCA-Ronald Reagan Washington National)?
When flying from Portland, OR (PDX-Portland Intl.) to Washington, DC (DCA-Ronald Reagan Washington National), you'll cover a distance of approximately 3772 kilometres. While there are very few nonstop flights, they typically take around 5 hours. Most travellers will find themselves on a one-stop flight, which usually takes about 8 hours. If your journey involves two or more stops, expect the travel time to be longer, typically around 12 hours 18 minutes. Keep in mind that actual flight times can vary due to factors like wind patterns and air traffic.
Can you fly business or first class from Portland, OR (PDX-Portland Intl.) to Washington, DC (DCA-Ronald Reagan Washington National)?
Yes, you can fly business class or first class between PDX and DCA. Airlines that offer business class service on this route include:
  • Frontier Airlines
  • Delta
  • American Airlines
First class cabins are available on:
  • United
  • Alaska Airlines
  • Delta
  • American Airlines
How do I earn miles on a Portland, OR (PDX-Portland Intl.) to Washington, DC (DCA-Ronald Reagan Washington National) flight with Expedia?
It's easy to earn miles on a Portland, OR (PDX-Portland Intl.) to Washington, DC (DCA-Ronald Reagan Washington National) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Washington, DC (DCA) from Portland, OR (PDX)?
If you're planning to travel to Washington from Portland Intl. (PDX), you can fly directly into Ronald Reagan Washington National (DCA). Some flights may connect through major hubs like Denver Intl. (DEN), Oakland Intl. (OAK), or Sky Harbor Intl. (PHX) before reaching Washington. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Portland, OR (PDX-Portland Intl.) to Washington, DC (DCA-Ronald Reagan Washington National) at the last minute?
Typically, booking a last minute flight from Portland, OR (PDX-Portland Intl.) to Washington, DC (DCA-Ronald Reagan Washington National) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Portland, OR (PDX-Portland Intl.) to Washington, DC (DCA-Ronald Reagan Washington National) flight and hotel package?
Securing a Portland, OR (PDX-Portland Intl.) to Washington, DC (DCA-Ronald Reagan Washington National) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Portland, OR (PDX) to Washington, DC (DCA)?
If you booked your Portland, OR (PDX) to Washington, DC (DCA) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Portland Intl.
Destination airport
Ronald Reagan Washington National
Roundtrip price
AU$563
Distance
3750 km
Average flight time
5 hours 6 mins

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Your quick guide to flights from Portland to Washington

Pick up great flights from Portland to Washington

With Expedia, you have your pick of flights a day with 20 airlines covering flights from Portland to Washington. Whether you’re on a business trip, a family holiday or a luxury break, just enter your travel dates, hit search then check out your choice of flights. Select from return, one way or multi-city flights, and use the advance search tool if you want a direct or refundable flight. You can narrow your search to show you just your preferred cabin class and airline, too. It’s all easy. You can book direct flights from Portland to Washington that take around hours.

Find cheap flights from Portland to Washington

From the great flight deals with prices currently ranging from AU$564 to AU$656, you can choose to see the cheapest flights first. Generally, you can book the cheapest flights from Portland to Washington around 4 to 6 weeks in advance. If your travel dates are flexible, try to avoid weekends and peak seasons – when you are more likely to grab the lowest prices. Even last minute, there are some impressive deals. The cheapest time to fly to Washington is normally in September.

Reasons to book your flight from Portland to Washington with Expedia

Expedia makes it easy to find, book, and travel, with everything you need all in one place. When you enter your travel details, find fantastic deals just for you on flight tickets from Portland to Washington across all the main airline carriers, so you can save time, dollars, and hassle finding the perfect flight. If you think your plans could change, choose refundable flights so any changes won’t cost you more. Book your flight to Washington right now and, if you join Expedia Rewards, you earn points this time and every time you travel with Expedia.

Your quick guide to flights from Portland to Washington

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