Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Washington, D.C. Dulles Intl Airport to Portland from $149

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Dulles Intl Airport to Portland departing on 10/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Washington, D.C. Dulles Intl Airport to Portland

Cheap round-trip flights

Alaska Airlines Logo
5:51 pm - 9:50 amIAD-PDX
18h 59m1 stop
Alaska Airlines Logo
9:30 pm - 5:25 pmPDX-IAD
16h 55m1 stop
$277Alaska Airlines
Find Deal
Thu, Feb 19 - Sun, Feb 22
Hawaiian Airlines Logo
6:25 am - 1:50 pmIAD-PDX
10h 25m1 stop
Hawaiian Airlines Logo
1:25 pm - 12:23 amPDX-IAD
7h 58m1 stop
$278Hawaiian Airlines
Find Deal
Tue, Oct 7 - Wed, Oct 15
Southwest Logo
5:05 am - 9:55 amIAD-PDX
7h 50m1 stop
Southwest Logo
6:00 am - 9:55 pmPDX-IAD
12h 55m2 stops
$280Southwest
Find Deal
Sun, Dec 14 - Wed, Jan 7
Southwest Logo
7:50 pm - 12:15 amIAD-PDX
7h 25m1 stop
Southwest Logo
5:00 am - 10:10 pmPDX-IAD
14h 10m2 stops
$282Southwest
Find Deal
Fri, Nov 7 - Wed, Nov 12
United Airlines Logo
5:45 pm - 8:20 pmIAD-PDX
5h 35mnonstop
United Airlines Logo
7:02 am - 7:03 pmPDX-IAD
9h 01m1 stop
$283United Airlines
Find Deal
Sat, Oct 4 - Tue, Oct 7
Southwest Logo
6:40 pm - 11:20 pmIAD-PDX
7h 40m1 stop
Southwest Logo
7:40 am - 11:00 pmPDX-IAD
12h 20m1 stop
$286Southwest
Find Deal
Wed, Oct 29 - Sat, Nov 1
Delta Logo
6:03 am - 12:48 pmIAD-PDX
9h 45m1 stop
Delta Logo
2:23 pm - 12:54 amPDX-IAD
7h 31m1 stop
$287Delta
Find Deal
Wed, Nov 19 - Sun, Nov 23
Delta Logo
7:35 am - 7:19 pmIAD-PDX
14h 44m1 stop
Delta Logo
1:30 pm - 12:40 amPDX-IAD
8h 10m1 stop
$291Delta
Find Deal
Sat, Oct 18 - Wed, Oct 22
United Airlines Logo
12:35 pm - 5:21 pmIAD-PDX
7h 46m1 stop
United Airlines Logo
2:15 pm - 12:21 amPDX-IAD
7h 06m1 stop
$297United Airlines
Find Deal
Sat, Oct 4 - Tue, Oct 14
Frontier Logo
1:55 pm - 12:12 amIAD-PDX
13h 17m2 stops
Frontier Logo
6:05 am - 12:15 amPDX-IAD
15h 10m2 stops
$325Frontier
Find Deal
Thu, Sep 25 - Mon, Sep 29

Alaska Airlines flights from Washington, D.C. Dulles Intl Airport to Portland

Our best Alaska Airlines deals on Washington, D.C. Dulles Intl Airport to Portland flight tickets
Alaska Airlines
Feb 19
IAD5:51 pmWashington, D.C. Dulles Intl
18h 59m
1 stop
PDX9:50 amPortland
Feb 22
PDX9:30 pmPortland
16h 55m
1 stop
IAD5:25 pmWashington, D.C. Dulles Intl
$277
Find similar
Alaska Airlines
Oct 7
IAD6:25 amWashington, D.C. Dulles Intl
13h 25m
2 stops
PDX4:50 pmPortland
Oct 21
PDX5:38 pmPortland
20h 04m
1 stop
IAD4:42 pmWashington, D.C. Dulles Intl
$288
Find similar
Alaska Airlines
Oct 15
IAD6:25 amWashington, D.C. Dulles Intl
9h 00m
1 stop
PDX12:25 pmPortland
Oct 17
PDX1:25 pmPortland
7h 58m
1 stop
IAD12:23 amWashington, D.C. Dulles Intl
$292
Find similar

Hawaiian Airlines flights from Washington, D.C. Dulles Intl Airport to Portland

Our best Hawaiian Airlines deals on Washington, D.C. Dulles Intl Airport to Portland flight tickets
Hawaiian Airlines
Oct 7
IAD6:25 amWashington, D.C. Dulles Intl
10h 25m
1 stop
PDX1:50 pmPortland
Oct 15
PDX1:25 pmPortland
7h 58m
1 stop
IAD12:23 amWashington, D.C. Dulles Intl
$278
Find similar
Hawaiian Airlines
Oct 11
IAD6:25 amWashington, D.C. Dulles Intl
9h 00m
1 stop
PDX12:25 pmPortland
Oct 18
PDX2:30 pmPortland
6h 53m
1 stop
IAD12:23 amWashington, D.C. Dulles Intl
$296
Find similar
Hawaiian Airlines
Oct 16
IAD6:25 amWashington, D.C. Dulles Intl
10h 25m
1 stop
PDX1:50 pmPortland
Oct 20
PDX1:25 pmPortland
7h 58m
1 stop
IAD12:23 amWashington, D.C. Dulles Intl
$312
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Dulles Intl Airport to Portland that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated September 11, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Portland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Portland

IAD - PDX

IADPDX

Washington, D.C. Dulles Intl

Thu 2/19

5:51 pm-9:50 am

1 stop18h 59m

Portland

Sun 2/22

9:30 pm-5:25 pm

1 stop16h 55m

$277

Washington, D.C.Portland

IAD - PDX

IADPDX

Washington, D.C. Dulles Intl

Tue 10/7

6:25 am-1:50 pm

1 stop10h 25m

Portland

Wed 10/15

1:25 pm-12:23 am

1 stop7h 58m

$278

Washington, D.C.Portland

IAD - PDX

IADPDX

Washington, D.C. Dulles Intl

Sun 12/14

5:05 am-9:55 am

1 stop7h 50m

Portland

Wed 1/7

6:00 am-9:55 pm

2 stops12h 55m

$280

Washington, D.C.Portland

IAD - PDX

IADPDX

Washington, D.C. Dulles Intl

Fri 11/7

7:50 pm-12:15 am

1 stop7h 25m

Portland

Wed 11/12

5:00 am-10:10 pm

2 stops14h 10m

$282

Washington, D.C.Portland

IAD - PDX

IADPDX

Washington, D.C. Dulles Intl

Sat 10/4

5:45 pm-8:20 pm

Nonstop5h 35m

Portland

Tue 10/7

7:02 am-7:03 pm

1 stop9h 01m

$283

Washington, D.C.Portland

IAD - PDX

IADPDX

Washington, D.C. Dulles Intl

Wed 10/29

6:40 pm-11:20 pm

1 stop7h 40m

Portland

Sat 11/1

7:40 am-11:00 pm

1 stop12h 20m

$286

Washington, D.C.Portland

IAD - PDX

IADPDX

Washington, D.C. Dulles Intl

Wed 11/19

6:03 am-12:48 pm

1 stop9h 45m

Portland

Sun 11/23

2:23 pm-12:54 am

1 stop7h 31m

$287

Washington, D.C.Portland

IAD - PDX

IADPDX

Washington, D.C. Dulles Intl

Sat 10/18

7:35 am-7:19 pm

1 stop14h 44m

Portland

Wed 10/22

1:30 pm-12:40 am

1 stop8h 10m

$291

Washington, D.C.Portland

IAD - PDX

IADPDX

Washington, D.C. Dulles Intl

Sat 10/4

12:35 pm-5:21 pm

1 stop7h 46m

Portland

Tue 10/14

2:15 pm-12:21 am

1 stop7h 06m

$297

Washington, D.C.Portland

IAD - PDX

IADPDX

Washington, D.C. Dulles Intl

Thu 9/25

1:55 pm-12:12 am

2 stops13h 17m

Portland

Mon 9/29

6:05 am-12:15 am

2 stops15h 10m

$325

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Portland from

How to get the cheapest flight ticket from Washington, D.C. Dulles Intl Airport to Portland

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Portland?

The cheapest month to fly to Portland from Washington, D.C. Dulles Intl Airport is in February. Flight prices, which tend to average around $416, are often lower during this time because this is during the off-season. If you don’t want to visit Portland in February, then you should wait until January to fly from Washington, D.C. Dulles Intl Airport, when ticket prices are also cheap, with an average price of $436.

What is the cheapest day to depart on your flight to Portland?

The cheapest day to depart on your flight to Portland is on a Tuesday when prices can be found for as low as $485. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Portland is Sunday, with ticket prices averaging around $576.

What is the cheapest time of day to depart on your flight to Portland?

The cheapest time of day to fly to Portland is in the evening when flights can be purchased for as low as $218. In the afternoon is when there is more demand to fly to Portland, so prices are often more expensive at around $526 per ticket.

What is the cheapest Washington, D.C. Dulles Intl to Portland flight route?

Fly from Washington, D.C. Dulles Intl to Portland for the best Washington, D.C. Dulles Intl - Portland flight prices

How far in advance should I book a flight to Portland?

You are more likely to see cheaper flights to Portland from Washington, D.C. Dulles Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Portland for around $497 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portland from Washington, D.C. Dulles Intl Airport for as low as $419 on momondo.

What cabin class options are available on Washington, D.C. Dulles Intl to Portland flights?

There are 4 cabin classes available to choose from on Washington, D.C. Dulles Intl to Portland flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Washington, D.C. Dulles Intl Airport to Portland flights?

You could potentially save up to 5% on your flight if you consider stops on a Washington, D.C. Dulles Intl Airport to Portland flight.

How have Washington, D.C. Dulles Intl Airport to Portland flight prices changed over time?

As of September 2025, prices for Washington, D.C. Dulles Intl Airport to Portland flights are approximately 1% more expensive when compared to flights at the same time last year.

When to book flights from Washington, D.C. Dulles Intl Airport to Portland

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Dulles Intl Airport to Portland according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Washington, D.C. Dulles Intl Airport to Portland (IAD to PDX) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Dulles Intl Airport to Portland

Best Price Found

$238

Fastest flight time

5h 30m

Direct flights

Every day

Airports in Portland

1 airport
The best one-way flight to Portland from Washington, D.C. Dulles Intl Airport in the past 72 hours is $238. The best round-trip flight deal from Washington, D.C. Dulles Intl Airport to Portland found on momondo in the last 72 hours is $355.
The fastest flight from Washington, D.C. Dulles Intl Airport to Portland takes 5h 30m
Direct flights go from Washington, D.C. Dulles Intl Airport to Portland every day.
There is 1 airport near Portland: Portland (PDX)
Search flight deals

  • How far is Washington, D.C. Dulles Intl to Portland by plane?

    The straight-line distance from Washington, D.C. Dulles Intl to Portland is 2324.3 mi. 5h 35m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to Portland Airport?

    Prices for flights from Washington, D.C. Dulles Intl Airport to Portland Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Washington, D.C. Dulles Intl Airport to Portland Airport?

  • How old do you have to be to fly from Washington, D.C. Dulles Intl Airport to Portland Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. Dulles Intl Airport to Portland Airport.

  • What documentation or ID do you need to fly to Portland Airport?

    The required travel and health documents for your Portland Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Portland Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Washington, D.C. Dulles Intl Airport to Portland?

  • What is the most popular airline from Washington, D.C. Dulles Intl Airport to Portland?

Best airlines flying from Washington, D.C. Dulles Intl Airport to Portland

Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport to Portland with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $130Free CancellationRating
5.8
3,177 reviews
Search Frontier flights
Sun Country AirPriceFrom $181Free CancellationRating
6.9
330 reviews
Search Sun Country Air flights
American AirlinesPriceFrom $182Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $280Free CancellationRating
7.9
7,960 reviews
Search Delta flights
Alaska AirlinesPriceFrom $316Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights
SouthwestPriceFrom $326Free CancellationRating
8.0
4,248 reviews
Search Southwest flights
United AirlinesPriceFrom $328Free CancellationRating
7.4
8,937 reviews
Search United Airlines flights

  • United Airlines Flights From Washington, D.C. Dulles Intl Airport to Portland

    The lowest priced United Airlines flight from Washington, D.C. Dulles Intl Airport to Portland from the last 72 hours was $328. Generally, United Airlines has 4 flights on this route every week with an average price of $540. United Airlines is rated 7.4/10 by our users.

Traveling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
Lincoln City
Seaside
Cannon Beach
Vancouver
Salem
Astoria
Long Beach
Depoe Bay
Rockaway Beach
Beaverton
Hillsboro
Hood River
Gresham
McMinnville
Longview
Tigard
The Dalles
Pacific City
Tillamook
Manzanita

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Portland?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Washington, D.C. to Portland. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Washington, D.C. to Portland with flexible booking policies on momondo?

Yes. All flights to Portland from Washington, D.C. on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Washington, D.C. to Portland?

momondo helps you find the best flight between Washington, D.C. and Portland by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Washington, D.C. to Portland right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Washington, D.C. to Portland now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Portland and let you know when they change.

An easier way to manage your Portland trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 10/11
Sat 10/18
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States