$128 Cheap Flights from Washington (IAD) to Portland (PWM)

View $128 flight on Mon, Dec 15, 2025Opens in a new window

Popular airlines from Washington Dulles Intl. Airport (IAD) to Portland Intl. Jetport Airport (PWM)

Cheap Flights from Washington to Portland (IAD-PWM)

Prices were available within the past 7 days and start at $128 for one-way flights and $189 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Fri, Nov 28 - Mon, Dec 1
IAD
Washington
PWM
Portland
$189 Roundtrip, found 10 hours ago
$189
Roundtrip
found 10 hours ago
Select United flight, departing Fri, Nov 28 from Washington to Portland, returning Mon, Dec 1, priced at $189 found 10 hours ago
United
Thu, Dec 18 - Thu, Dec 25
IAD
Washington
PWM
Portland
$198 Roundtrip, found 21 hours ago
$198
Roundtrip
found 21 hours ago
Select United flight, departing Thu, Dec 18 from Washington to Portland, returning Thu, Dec 25, priced at $198 found 21 hours ago
United
Tue, Dec 16 - Mon, Jan 5
IAD
Washington
PWM
Portland
$199 Roundtrip, found 11 hours ago
$199
Roundtrip
found 11 hours ago
Select United flight, departing Tue, Dec 16 from Washington to Portland, returning Mon, Jan 5, priced at $199 found 11 hours ago
United
Sat, Nov 22 - Sun, Nov 23
IAD
Washington
PWM
Portland
$206 Roundtrip, found 1 day ago
$206
Roundtrip
found 1 day ago
Select United flight, departing Sat, Nov 22 from Washington to Portland, returning Sun, Nov 23, priced at $206 found 1 day ago
Delta
Mon, Nov 24 - Mon, Dec 8
IAD
Washington
PWM
Portland
$209 Roundtrip, found 11 hours ago
$209
Roundtrip
found 11 hours ago
Select Delta flight, departing Mon, Nov 24 from Washington to Portland, returning Mon, Dec 8, priced at $209 found 11 hours ago
United
Thu, Nov 13 - Sat, Nov 15
IAD
Washington
PWM
Portland
$209 Roundtrip, found 2 days ago
$209
Roundtrip
found 2 days ago
Select United flight, departing Thu, Nov 13 from Washington to Portland, returning Sat, Nov 15, priced at $209 found 2 days ago
United
Thu, Jan 8 - Wed, Jan 14
IAD
Washington
PWM
Portland
$213 Roundtrip, found 4 days ago
$213
Roundtrip
found 4 days ago
Select United flight, departing Thu, Jan 8 from Washington to Portland, returning Wed, Jan 14, priced at $213 found 4 days ago
Delta
Wed, Feb 18 - Tue, Feb 24
IAD
Washington
PWM
Portland
$214 Roundtrip, found 1 day ago
$214
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Feb 18 from Washington to Portland, returning Tue, Feb 24, priced at $214 found 1 day ago
United
Fri, Nov 28 - Mon, Dec 1
IAD
Washington
PWM
Portland
$217 Roundtrip, found 10 hours ago
$217
Roundtrip
found 10 hours ago
Select United flight, departing Fri, Nov 28 from Washington to Portland, returning Mon, Dec 1, priced at $217 found 10 hours ago
American Airlines
Fri, Nov 14 - Tue, Nov 18
IAD
Washington
PWM
Portland
$299 Roundtrip, found 4 hours ago
$299
Roundtrip
found 4 hours ago
Select American Airlines flight, departing Fri, Nov 14 from Washington to Portland, returning Tue, Nov 18, priced at $299 found 4 hours ago

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

September is typically the cheapest month to fly

From $158 - $339 per traveler.

Alternative airports near Portland

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

Select flight to Portland Intl. Jetport PWM. Cheapest and Closest option available. Average driving time to city center is 8 minutes. Flights from $219
PWM
Portland Intl. Jetport
CheapestClosest
Average driving time to city center8 min
Flights from $219

Frequently asked questions

How much does a flight from Washington Dulles Intl. Airport (IAD) to Portland Intl. Jetport Airport (PWM) cost?
Lock in a cheap one-way flight from $128 or cheap return flight from $189 from Washington Dulles Intl. Airport (IAD) to Portland Intl. Jetport Airport (PWM) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Washington Dulles Intl. Airport (IAD) to Portland Intl. Jetport Airport (PWM)?
Traveling in November may help you find better deals, as it's the cheapest month for flights between IAD and PWM. You'll typically find the lowest prices during off-peak months.
Which airlines fly direct from Washington Dulles Intl. Airport (IAD) to Portland Intl. Jetport Airport (PWM)?
Fly directly from Washington Dulles Intl. Airport (IAD) to Portland Intl. Jetport Airport (PWM) on a United Airlines flight.
What is the cheapest airline that flies from Washington Dulles Intl. Airport (IAD) to Portland Intl. Jetport Airport (PWM)?
To find the cheapest airline that'll fly you from IAD to PWM, use Expedia's filter tool. Tailor your search based on what's important to you, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to see the cheapest fares upfront.
How many flights per day from Washington Dulles Intl. Airport (IAD) to Portland Intl. Jetport Airport (PWM)?
On average, just 1 nonstop flight departs each day from Washington Dulles Intl. Airport (IAD) to Portland Intl. Jetport Airport (PWM). Want additional options? Use our filter tool to find flights with layovers and squeeze another destination into your itinerary.
What are the most popular departure times for flights from Washington Dulles Intl. Airport (IAD) to Portland Intl. Jetport Airport (PWM)?
More passengers fly between IAD and PWM at 8 AM than at any other time. Looking to skip the crowds? Consider flying outside peak hours and you could save on your ticket as well.
What day of the week has the most flights from IAD to PWM?
Friday offers the most flights from Washington Dulles Intl. Airport (IAD) to Portland Intl. Jetport Airport (PWM). Consider traveling on this day and you'll have a greater chance of finding a departure that fits your schedule.
What is the earliest flight from Washington Dulles Intl. Airport (IAD) to Portland Intl. Jetport Airport (PWM)?
The earliest flight leaving from Washington Dulles Intl. Airport (IAD) is at around 8:45AM UTC-5. Catch this flight and you'll arrive at Portland Intl. Jetport Airport (PWM) at approximately 10:28AM UTC-5. The entire trip takes 1h 43m.
How long does it take to fly from Washington Dulles Intl. Airport (IAD) to Portland Intl. Jetport Airport (PWM)?
Flights from IAD to PWM have an average travel time of 1 hour and 43 minutes. The total distance between these two airports is 490 mi.
What is the best time to fly from Washington Dulles Intl. Airport (IAD) to Portland Intl. Jetport Airport (PWM)?
Choose a flight from Washington Dulles Intl. Airport (IAD) to Portland Intl. Jetport Airport (PWM) that takes off before 3 PM to reduce the risk of cancellations. Departures after this time 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.
What airports do you fly into for Portland from Washington Dulles Intl. Airport (IAD)?
Portland Intl. Jetport Airport (PWM) is the only airport in Portland with direct flights from Washington Dulles Intl. Airport (IAD). Compare the available options and find cheap fares on Expedia.
Is it cheaper to buy a plane ticket from Washington Dulles Intl. Airport (IAD) to Portland Intl. Jetport Airport (PWM) last-minute?
Booking your flight from IAD to PWM right before your trip is typically more expensive. But if there's some wiggle room with your schedule, you could bag a cheap last-minute fare.
Is it cheaper to book an IAD to PWM flight and hotel package?
Booking an IAD to PWM flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip all in one place. Choose from our extensive range of hotels and then add activities, flights and car rentals to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Washington Dulles Intl. Airport (IAD) to Portland Intl. Jetport Airport (PWM)?
You can usually reschedule or cancel your IAD to PWM flight. However, if it's been more than 24 hours since booking, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find more information on our Customer Service portal.

Travel information

Origin airport
Washington Dulles Intl.
Destination airport
Portland Intl. Jetport
Airlines serving
American Airlines, Delta, United
Roundtrip price
$189
Distance
492 mi
Average flight time
1 hour 43 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 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 $128 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

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*Available to One Key members.