$149 Cheap Flights from Washington (IAD) to Portland (PDX)

Popular airlines from Washington Dulles Intl. Airport (IAD) to Portland International Airport (PDX)

Cheap Flights from Washington to Portland (IAD-PDX)

Prices were available within the past 7 days and start at $149 for one-way flights and $277 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
United
United
Southwest Airlines
United
Bargain Flight
American Airlines
Delta
United
Alaska Airlines

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

September is typically the cheapest month to fly

From $210 - $358 per traveler.

Alternative airports near Portland

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

Flights from Washington (IAD) to Portland (PDX)
Origin airport
Washington Dulles Intl.
Destination airport
Portland Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Hawaiian Airlines, Southwest Airlines, Sun Country Airlines, United
Roundtrip price
$277
Distance
2321 mi
Average flight time
5 hours 35 mins

Washington to Portland Flights

The cheapest times to fly from Washington to Portland

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 Washington to Portland are during the month of November. You can find some of the cheapest flights from Washington to Portland with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Washington to Portland

Sunday is one of the best days to book for cheap flights from Washington to Portland: 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 Washington to Portland

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 Washington to Portland in 2025. You can also book with separate airlines for your outbound and return journeys, from $149 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 Washington to Portland 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 Washington to Portland 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 Washington Dulles Intl. Airport (IAD) to Portland Intl. Airport (PDX) cost?
Secure a cheap one-way flight from $149 or cheap return flight from $277 from Washington Dulles Intl. Airport (IAD) to Portland Intl. Airport (PDX) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Washington Dulles Intl. Airport (IAD) to Portland Intl. Airport (PDX)?
November is the least expensive month to fly from IAD to PDX. Avoiding peak travel times is often the key to finding a great deal.
Which airlines fly direct from Washington Dulles Intl. Airport (IAD) to Portland Intl. Airport (PDX)?
You can't fly nonstop from Washington, DC (IAD-Washington Dulles Intl.) to Portland Intl. Airport (PDX). However, you can seamlessly travel to Portland without any layovers by departing from Ronald Reagan Washington National Airport (DCA).
What is the cheapest airline that flies from Washington Dulles Intl. Airport (IAD) to Portland Intl. Airport (PDX)?
Use the filters on Expedia to compare airlines and find the most affordable carrier that'll fly you from IAD to PDX. Then, sort your results by "Price (lowest to highest)" to score a great deal.
How many flights per day from Washington Dulles Intl. Airport (IAD) to Portland Intl. Airport (PDX)?
You'll need to hop on a flight with a layover when traveling from Washington Dulles Intl. Airport (IAD) to Portland Intl. Airport (PDX). There are no daily direct flights on this route. However, just filter your search to include one or two stops to discover an option that works for you.
What day of the week has the most flights from IAD to PDX?
Friday is usually the busiest day for flights, while Tuesday is often the quietest.* Just remember that flight schedules can vary depending on a number of factors, including the airline and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Washington Dulles Intl. Airport (IAD) to Portland Intl. Airport (PDX)?
Book a flight from Washington Dulles Intl. Airport (IAD) to Portland Intl. Airport (PDX) that leaves before 3 PM to reduce the risk of cancellations and delays. Later departures are on average 22% more likely to be canceled.**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.
Is it cheaper to buy a plane ticket from Washington Dulles Intl. Airport (IAD) to Portland Intl. Airport (PDX) last-minute?
Booking your ticket from IAD to PDX shortly before your getaway is typically more expensive. But if you're flexible with your departure dates and times, you could grab a cheap last-minute fare.
Is it cheaper to book an IAD to PDX flight and hotel package?
Compared with arranging flights and hotels separately, booking an IAD to PDX flight and hotel package with Expedia could result in significant savings. Better still, managing everything in one place will take the hassle out of planning your trip. Just pick your flights and choose from our extensive range of stays, then personalize your trip with other add-ons like tours, activities and car rentals.
Can I cancel or change the date of my flight from Washington Dulles Intl. Airport (IAD) to Portland Intl. Airport (PDX)?
Typically, it's possible to cancel or reschedule your IAD to PDX flight. However, for bookings made more than 24 hours ago, additional charges may apply. Check your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find more information on our Customer Service portal.

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*Available to One Key members.