A nighttime cityscape with illuminated buildings, a bridge, and reflections on the water.

$91 Cheap Flights from Washington (IAD) to Portland (PDX)

View $91 flight on Thu, Oct 22, 2026Opens in a new window

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

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 30% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Cheap Flights from Washington to Portland (IAD-PDX)

Prices were available within the past 7 days and start at $91 for one-way flights and $213 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Sat, Oct 31 - Wed, Nov 4
IAD
Washington
PDX
Portland
$213 Roundtrip, found 2 hours ago
$213
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Sat, Oct 31 from Washington to Portland, returning Wed, Nov 4, priced at $213 found 2 hours ago
American Airlines
Tue, Nov 3 - Mon, Nov 9
IAD
Washington
PDX
Portland
$227 Roundtrip, found 2 hours ago
$227
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Tue, Nov 3 from Washington to Portland, returning Mon, Nov 9, priced at $227 found 2 hours ago
American Airlines
Fri, Nov 6 - Tue, Nov 10
IAD
Washington
PDX
Portland
$240 Roundtrip, just found
$240
Roundtrip
just found
Select American Airlines flight, departing Fri, Nov 6 from Washington to Portland, returning Tue, Nov 10, priced at $240 just found
American Airlines
Fri, Nov 6 - Mon, Nov 9
IAD
Washington
PDX
Portland
$254 Roundtrip, found 1 day ago
$254
Roundtrip
found 1 day ago
Select American Airlines flight, departing Fri, Nov 6 from Washington to Portland, returning Mon, Nov 9, priced at $254 found 1 day ago
Frontier Airlines
Thu, Oct 22 - Tue, Oct 27
IAD
Washington
PDX
Portland
$313 Roundtrip, just found
$313
Roundtrip
just found
Select Frontier Airlines flight, departing Thu, Oct 22 from Washington to Portland, returning Tue, Oct 27, priced at $313 just found
American Airlines
Sat, Oct 31 - Wed, Nov 4
IAD
Washington
PDX
Portland
$323 Roundtrip, found 2 hours ago
$323
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Sat, Oct 31 from Washington to Portland, returning Wed, Nov 4, priced at $323 found 2 hours ago
American Airlines
Tue, Nov 3 - Mon, Nov 9
IAD
Washington
PDX
Portland
$337 Roundtrip, found 2 hours ago
$337
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Tue, Nov 3 from Washington to Portland, returning Mon, Nov 9, priced at $337 found 2 hours ago
Alaska Airlines
Wed, Oct 28 - Tue, Nov 3
IAD
Washington
PDX
Portland
$403 Roundtrip, found 1 hour ago
$403
Roundtrip
found 1 hour ago
Select Alaska Airlines flight, departing Wed, Oct 28 from Washington to Portland, returning Tue, Nov 3, priced at $403 found 1 hour ago
Delta
Sat, Oct 17 - Tue, Oct 20
IAD
Washington
PDX
Portland
$403 Roundtrip, found 5 hours ago
$403
Roundtrip
found 5 hours ago
Select Delta flight, departing Sat, Oct 17 from Washington to Portland, returning Tue, Oct 20, priced at $403 found 5 hours ago
United
Wed, Oct 7 - Sun, Oct 11
IAD
Washington
PDX
Portland
$517 Roundtrip, just found
$517
Roundtrip
just found
Select United flight, departing Wed, Oct 7 from Washington to Portland, returning Sun, Oct 11, priced at $517 just found

What you need to know for your flight from Washington Dulles Intl. to Portland Intl.

Washington (IAD) to Portland (PDX) at a glance

Travel from Washington Dulles International Airport (IAD) to Portland International Airport (PDX) with a selection of airlines catering to various budgets and preferences. Whether you're seeking cheap flights from Washington or prefer full-service carriers, you can easily compare options to discover the best itinerary for your travel plans. Don't forget to check the flight time, ensuring a smooth journey as you prepare to explore Portland's iconic attractions and vibrant neighborhoods.

  • Fastest flight duration: around 5h 45m non-stop
  • Route distance: roughly 2,300 miles (3,700 km)
  • Flights per week: around 14 flights with multiple daily departures on average
  • Typical fares (one-way): economy tickets often range from $135–$505, depending on seasonality and how far ahead you book

Flights from Washington Dulles International Airport (IAD) to Portland International Airport (PDX)

According to recent traveler bookings, the top airlines flying from Washington to Portland are favored for both non-stop and one-stop flights. Common layover points include Denver International Airport (DEN) with an average layover of about 1 hour and 15 minutes, Seattle-Tacoma International Airport (SEA), also around 1 hour and 15 minutes, and Harry Reid International Airport (LAS) with a shorter layover of approximately 55 minutes. This variety allows you to easily compare prices, total travel times, and cabin classes to create your ideal itinerary.

  • United: As a comprehensive airline, United provides both non-stop and one-stop options, with one-way tickets generally priced between $170 and $615. This carrier facilitates about 53% of the departures on this route, with a standard non-stop flight duration of 5 hours and 45 minutes.
  • Delta: This full-service airline offers one-stop flights, with one-way fares typically ranging from $135 to $515. Delta captures around 16% of the departures for this route, featuring an in-flight duration of 7 hours and an overall journey time of approximately 8 hours and 15 minutes, including layovers.
  • Alaska Airlines: Another full-service option, Alaska Airlines provides one-stop flights with one-way fares usually between $135 and $505. This airline accounts for roughly 13% of the departures on this route, with an in-flight time of 7 hours and a total travel duration of about 8 hours and 15 minutes, factoring in layovers.
  • Southwest Airlines: As a budget-friendly carrier, Southwest Airlines offers one-stop service, with one-way fares typically ranging from $135 to $470. Approximately 9% of departures are operated by this airline, which features a flight time of 7 hours and a total journey time of around 8 hours and 15 minutes, including a layover.
  • Frontier Airlines: This low-cost carrier provides one-stop flights, with one-way fares usually falling between $135 and $265. Frontier accounts for about 3% of all departures on this route, with an in-flight time of 7 hours and a total travel time of roughly 8 hours and 15 minutes, including layovers.

Travelers can enhance their journey from Washington to Portland by upgrading their flight. Major airlines provide options such as first class and premium economy class with United and Delta, while American Airlines exclusively features first class for a more comfortable travel experience.

Best time to fly from Washington (IAD) to Portland (PDX)

The most popular months for travelers flying from Washington to Portland are March, June, and July, when peak temperatures in Portland reach up to 69.1°F in July. If you prefer quieter travel, consider February, the least busy time to visit with temperatures around 41.4°F and typically the lowest average one-way fare (around $253). Flight availability peaks in June, with approximately 22 flights per week, making it easier to find convenient departure times.

  • Cheapest time to fly: February usually offers good deals with average one-way fare around $253, roughly 15% cheaper than the yearly average.
  • Another budget-friendly time to fly: November typically offers an average one-way fare of around $278.
  • Most flight options: June has the highest number of flights from Washington to Portland, with approximately 22 flights per week, giving you more flexibility in scheduling your trip.
calendar iconMonthtemperature iconTemperaturecrowd level iconDemandflights iconWeekly Flightsprice iconAverage one-way Fare
January40.8°F (4.9°C)Moderately Low11$309
February41.4°F (5.2°C)Moderately Low11$253
March45.0°F (7.2°C)Moderately High12$312
April49.5°F (9.7°C)Average12$306
May56.7°F (13.7°C)Average18$279
June62.4°F (16.9°C)Moderately High22$307
July69.1°F (20.6°C)Moderately High18$283
August70.3°F (21.3°C)Average16$305
September64.0°F (17.8°C)Average14$280
October54.7°F (12.6°C)Average15$307
November45.5°F (7.5°C)Moderately Low15$278
December39.9°F (4.4°C)Average14$369

*Average one-way fare is based on Expedia flight booking data from January 2025 to April 2026 for the specified route and travel class and may change depending on availability, dates, and demand.

Alternative route from Washington (IAD) to Portland (PDX)

  • Washington to Portland (DCA-PDX): Ronald Reagan Washington National Airport (DCA) is located about 23 miles from Washington Dulles International Airport (IAD). One-way economy ticket prices for this journey generally fall between $125 and $525, influenced by the season and timing of your booking. Travelers can choose from both direct and one-stop flights, with common layover spots being O'Hare International Airport (ORD) and Denver International Airport (DEN). Major airlines operating this route include Alaska Airlines and American Airlines, with business and first class service also available.

How to find the best prices for flights from Washington (IAD) to Portland (PDX)

Getting some of the best deals on flights from Washington to Portland is all about timing and flexibility. Here are some key tips to help you save:

  1. Best times to book and fly: cheaper fares are usually found when booking 2-8 weeks ahead, which coincides with the typical booking habits of most travelers. Morning departures from 5 am to 12 pm often offer lower prices, while afternoon flights from 12 pm to 6 pm are more popular. Additionally, flying on Monday generally provides cheaper options, though Thursday remains the most favored travel day.
  2. Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
  3. Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.*
  4. Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
  5. Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
  6. Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.

*Members only. Savings vary and are not available on all bundles. Select hotels.

Arriving at Portland International Airport from Washington Dulles International Airport

Portland welcomes travelers from Washington with a range of transport options based on price, convenience, and proximity. For departures, Washington Dulles International Airport is roughly a 40-minute drive (covering about 29 miles) from central Washington. Here's how to reach Portland efficiently:

  • Hotel transfer: Transfers offer a convenient way to reach your hotel in Portland, with private rides that can be arranged in advance.
  • Car rental: Renting a car from Portland International Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Portland International Airport on Expedia.
  • Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.
  • Public transportation: From Portland International Airport, you can conveniently reach several transport options. Both the Portland International Airport Bus Stop (a bus station) and the Portland International Airport Station (a metro station) are located about 0.3 miles away on foot, while Portland Union Station (a train station) is approximately 9 miles from the airport and is best accessed by car.

Frequently asked questions

How much does a flight from Washington, DC (IAD-Washington Dulles Intl.) to Portland, OR (PDX-Portland Intl.) cost?
You can find cheap one-way flights from $91 and cheap return flights from $213 Washington, DC (IAD-Washington Dulles Intl.) to Portland, OR (PDX-Portland Intl.) with Expedia. One-way flights typically cost between $219 and $1240, and return flights often range between $421 and $1599. 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 the cheapest fares first, and use the Price Tracking tool to receive alerts when Washington, DC (IAD-Washington Dulles Intl.) to Portland, OR (PDX-Portland Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Washington, DC (IAD-Washington Dulles Intl.) to Portland, OR (PDX-Portland Intl.)?
September is typically the cheapest month to fly from Washington, DC (IAD) to Portland, OR (PDX), with average round-trip fares around $405. This price is about 18% lower than the average throughout the year, as travel demand decreases after the summer season. Other cheap months to fly from IAD to PDX include February and May.*Averages based on flights available on Expedia in the last year.
Which airlines fly direct from Washington, DC (IAD-Washington Dulles Intl.) to Portland, OR (PDX-Portland Intl.)?
You can fly direct from IAD to PDX on United, with around 8 flights per week.
What is the cheapest airline that flies from Washington, DC (IAD-Washington Dulles Intl.) to Portland, OR (PDX-Portland Intl.)?
United is one of the cheapest airlines offering nonstop flights from Washington Dulles Intl. (IAD) to Portland Intl. (PDX), with round-trip tickets starting from around $583. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Washington, DC (IAD-Washington Dulles Intl.) to Portland, OR (PDX-Portland Intl.)?
To find a cheap flight from Washington, DC (IAD-Washington Dulles Intl.) to Portland, OR (PDX-Portland Intl.), 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 Washington, DC (IAD-Washington Dulles Intl.) to Portland, OR (PDX-Portland Intl.)?
The best airline to fly with from Washington, DC (IAD) to Portland, OR (PDX) will differ from traveler to traveler. If you like to fly early, United offers early morning flights. If price is the most important factor, United typically offers the lowest fares. Alaska Airlines offers the most daily flights from IAD to PDX, 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 Washington, DC (IAD-Washington Dulles Intl.) to Portland, OR (PDX-Portland Intl.)?
When flying from Washington, DC (IAD) to Portland (PDX), September and February are the best months to consider. Return flights average around $405, making them the cheapest options. September features beautiful early autumn weather, while February is less crowded, providing a more relaxed travel experience.*Prices based on flights available on Expedia in the last year.
How many flights per day from Washington, DC (IAD-Washington Dulles Intl.) to Portland, OR (PDX-Portland Intl.)?
There are approximately 1 nonstop flights per day from Washington Dulles Intl. (IAD) to Portland Intl. (PDX). For more options, look at flights that include layovers.
What is the earliest flight from Washington, DC (IAD-Washington Dulles Intl.) to Portland, OR (PDX-Portland Intl.)?
The earliest flight from Washington Dulles International Airport (IAD) to Portland International Airport (PDX) typically departs at 5:00 AM, operated by American Airlines. An early departure like this allows you to make the most of your day upon arrival in Portland. This service operates seasonally in August. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Washington, DC (IAD-Washington Dulles Intl.) to Portland, OR (PDX-Portland Intl.)?
The most popular departure times for flights from Washington, DC (IAD) to Portland (PDX) are from 3pm to 6pm. About 38% of passengers prefer this time window. Many major carriers, including United and Delta, offer flights during this window. This timing works well because it allows you to wrap up your day in DC before heading out to the West Coast.
How long does it take to fly from Washington, DC (IAD-Washington Dulles Intl.) to Portland, OR (PDX-Portland Intl.)?
Flying nonstop from IAD to PDX takes around 6 hours, with the route covering approximately 2,321 miles. Flights with a layover typically take 3 hours 20 minutes longer than direct options. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Washington, DC (IAD-Washington Dulles Intl.) to Portland, OR (PDX-Portland Intl.)?
First class is available on flights from IAD to PDX. First class cabins are available on:

  • United Airlines
  • Delta Air Lines
  • American Airlines

How much is a business class flight from Washington, DC (IAD-Washington Dulles Intl.) to Portland, OR (PDX-Portland Intl.)?
A direct, return business class ticket from Washington, DC (IAD) to Portland, OR (PDX) typically costs between $1,612 and $2,041. A non-stop, one-way business class flight is usually around $742 to $928. Prices often fluctuate based on seasonality and how early you book. You may also be able to find a cheaper business class journey between Washington, DC (IAD-Washington Dulles Intl.) to Portland, OR (PDX-Portland Intl.) if you opt for a connecting flight.*Prices based on flights available on Expedia in the last year.
How do I earn miles on a Washington, DC (IAD-Washington Dulles Intl.) to Portland, OR (PDX-Portland Intl.) flight with Expedia?
It's easy to earn miles on a Washington, DC (IAD-Washington Dulles Intl.) to Portland, OR (PDX-Portland Intl.) 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 Portland from Washington Dulles Intl. (IAD)?
When traveling from Washington Dulles Intl. (IAD) to Portland, you can fly into Portland Intl. (PDX) and Portland Intl. Jetport (PWM). Some flights may connect through major hubs like Seattle - Tacoma Intl. (SEA), Denver Intl. (DEN), Charlotte-Douglas Intl. (CLT) before reaching Portland. 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 Washington, DC (IAD-Washington Dulles Intl.) to Portland, OR (PDX-Portland Intl.) at the last minute?
Typically, booking a last minute flight from Washington, DC (IAD-Washington Dulles Intl.) to Portland, OR (PDX-Portland Intl.) 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 Washington, DC (IAD-Washington Dulles Intl.) to Portland, OR (PDX-Portland Intl.) flight and hotel package?
Securing a Washington, DC (IAD-Washington Dulles Intl.) to Portland, OR (PDX-Portland Intl.) Portland Vacation Packages 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 Washington, DC (IAD-Washington Dulles Intl.) to Portland, OR (PDX-Portland Intl.)?
If you booked your Washington, DC (IAD-Washington Dulles Intl.) to Portland, OR (PDX-Portland Intl.) 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
Washington Dulles Intl.
Destination airport
Portland Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Sun Country Airlines, United
Roundtrip price
$212
Distance
2321 mi
Average flight time
5 hours 37 mins

Book with confidence

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 October. 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 2026. You can also book with separate airlines for your outbound and return journeys, from $91 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.

 

Washington to Portland Flights

*Flight schedules are subject to change.

*Available to One Key members.

 

Explore a world of travel with Expedia