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$169+ Cheap flights from Dulles Intl (IAD) to Portland (PDX)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/14. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — PDX
Jun 26 — Jul 31
Fri 6/26
Fri 7/3
1 adult, Economy
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Find cheap flights from Dulles Intl to Portland with Cheapflights

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Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Portland are usually found in January or February, booked 69 days in advance, depart on a Wednesday or Monday and return on a Thursday

Cheap flight deals from Dulles Intl to Portland

Cheapest flights from Dulles Intl to Portland
Explore the most affordable flight options available from Dulles Intl to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 27, 2026.

This American Airlines deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/187:57 am
IAD
-
PDX
2 stops11h 54m
American Airlines
Tue 8/255:18 am
PDX
-
IAD
1 stop10h 09m
American Airlines
Deal found 5/24$302
This Frontier deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/39:55 am
IAD
-
PDX
1 stop10h 29m
Frontier
Fri 7/105:49 pm
PDX
-
IAD
1 stop11h 31m
Frontier
Deal found 5/26$307
This American Airlines deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/292:53 pm
IAD
-
PDX
1 stop9h 43m
American Airlines
Wed 9/26:27 am
PDX
-
IAD
1 stop9h 00m
American Airlines
Deal found 5/26$314
This American Airlines deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/217:31 pm
IAD
-
PDX
1 stop8h 24m
American Airlines
Wed 7/2911:41 pm
PDX
-
IAD
1 stop8h 26m
American Airlines
Deal found 5/25$318
This American Airlines deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/286:57 am
IAD
-
PDX
2 stops10h 07m
American Airlines
Sat 10/315:20 am
PDX
-
IAD
1 stop9h 34m
American Airlines
Deal found 5/26$319
This American Airlines deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/127:57 am
IAD
-
PDX
2 stops11h 54m
American Airlines
Mon 8/1711:34 pm
PDX
-
IAD
2 stops10h 14m
American Airlines
Deal found 5/26$324
This Frontier deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/39:55 am
IAD
-
PDX
1 stop10h 29m
Frontier
Sun 7/126:49 pm
PDX
-
IAD
1 stop10h 31m
Frontier
Deal found 5/26$336
This American Airlines deal was found by Cheapflights users on 5/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/287:30 pm
IAD
-
PDX
1 stop8h 25m
American Airlines
Tue 8/49:47 pm
PDX
-
IAD
1 stop9h 10m
American Airlines
Deal found 5/23$339
This American Airlines deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/47:31 pm
IAD
-
PDX
1 stop8h 24m
American Airlines
Mon 8/1711:34 pm
PDX
-
IAD
2 stops10h 14m
American Airlines
Deal found 5/26$340
This American Airlines deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/47:31 pm
IAD
-
PDX
1 stop8h 24m
American Airlines
Tue 8/1111:34 pm
PDX
-
IAD
2 stops10h 14m
American Airlines
Deal found 5/26$341
This American Airlines deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/147:31 pm
IAD
-
PDX
1 stop8h 24m
American Airlines
Tue 7/2111:41 pm
PDX
-
IAD
1 stop8h 26m
American Airlines
Deal found 5/26$342

Find flight deals from Dulles Intl to Portland

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Portland (PDX). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$302
(American Airlines)

One-way from

$169
(Frontier)

Popular in

December

Cheapest in

January

Average price

$486

Good round-trip deal

$487 or less

Good one-way deal

$258 or less
Provider with most accurate pricing for Washington, D.C. Dulles Intl-Portland flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Portland flights.
Search Deals
From Washington, D.C. Dulles Intl to Portland
Search Deals
One-way flight from Washington, D.C. Dulles Intl to Portland
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($32 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals
Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to Portland.
Search Deals
Price to beat on a one-way flight from Washington, D.C. Dulles Intl to Portland.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl 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, Cheapflights users made 2,558,603 searches. Data last updated May 27, 2026.
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

Cheapest round-trip

Washington, D.C.Portland

IAD - PDX

IADPDX

Washington, D.C. Dulles Intl

Thu 8/27

6:10 am-10:31 am

1 stop7h 21m

Portland

Mon 8/31

10:55 pm-10:01 am

1 stop8h 06m

$347

Washington, D.C.Portland

IAD - PDX

IADPDX

Washington, D.C. Dulles Intl

Fri 10/2

7:00 am-1:37 pm

1 stop9h 37m

Portland

Fri 10/16

5:45 pm-5:40 am

1 stop8h 55m

$347

Washington, D.C.Portland

IAD - PDX

IADPDX

Washington, D.C. Dulles Intl

Tue 9/29

7:00 am-1:37 pm

1 stop9h 37m

Portland

Wed 10/7

10:51 am-11:59 pm

1 stop10h 08m

$347

Washington, D.C.Portland

IAD - PDX

IADPDX

Washington, D.C. Dulles Intl

Wed 7/15

6:00 am-10:36 am

1 stop7h 36m

Portland

Wed 7/22

11:15 am-12:08 am

1 stop9h 53m

$403

Washington, D.C.Portland

IAD - PDX

IADPDX

Washington, D.C. Dulles Intl

Thu 8/6

6:10 am-10:31 am

1 stop7h 21m

Portland

Tue 8/11

10:35 pm-11:49 am

1 stop10h 14m

$403

Washington, D.C.Portland

IAD - PDX

IADPDX

Washington, D.C. Dulles Intl

Wed 7/29

6:10 am-11:38 am

1 stop8h 28m

Portland

Sun 8/2

11:30 pm-7:32 am

Nonstop5h 02m

$457

Washington, D.C.Portland

IAD - PDX

IADPDX

Washington, D.C. Dulles Intl

Fri 8/28

2:43 pm-9:05 pm

1 stop9h 22m

Portland

Mon 8/31

8:25 am-4:26 pm

Nonstop5h 01m

$457

Washington, D.C.Portland

IAD - PDX

IADPDX

Washington, D.C. Dulles Intl

Wed 8/5

6:10 am-11:38 am

1 stop8h 28m

Portland

Tue 8/11

11:02 pm-9:28 am

1 stop7h 26m

$467

Washington, D.C.Portland

IAD - PDX

IADPDX

Washington, D.C. Dulles Intl

Tue 8/4

3:39 pm-10:30 pm

1 stop9h 51m

Portland

Fri 8/7

11:30 pm-7:32 am

Nonstop5h 02m

$517

Washington, D.C.Portland

IAD - PDX

IADPDX

Washington, D.C. Dulles Intl

Mon 6/29

5:29 pm-9:50 pm

1 stop7h 21m

Portland

Mon 7/6

11:20 am-12:25 am

1 stop10h 05m

$519

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/25

Showing 1-10 of 23 resultsSorted by cheapest first
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Compare providers for flights from Dulles Intl to Portland

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Dulles Intl to Portland in May.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Portland flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Dulles Intl Airport-Portland flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Portland flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Portland flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Dulles Intl Airport-Portland flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Dulles Intl to Portland

Have a flexible travel schedule? Discover the best time to fly to Portland from Dulles Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Portland

How far ahead should I book a flight from Washington, D.C. Dulles Intl Airport to Portland?

To ensure you get the cheapest price possible for a flight from Washington, D.C. Dulles Intl Airport to Portland, you should look to book at least 68 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Portland?

Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Portland (average of $341). Flying from Washington, D.C. Dulles Intl Airport to Portland in December is currently the most expensive (average of $638). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IAD to PDX?

Find hourly flight availability from Dulles Intl to Portland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 27, 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Washington, D.C. Dulles Intl Airport to Portland as you normally would.

How much does it cost to fly round-trip from Washington, D.C. Dulles Intl Airport to Portland?

Reviews of airlines servicing Portland

Get insights into the airlines that provide service to Portland. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Portland. Reviews last updated May 27, 2026.
Read reviews from past customers who have flown Alaska Airlines,Delta, andUnited Airlines from Washington, D.C. Dulles Intl Airport to Portland. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
7.9
Good
12,422 reviews

Comfort

7.8

Crew

8.5

Overall

7.9

Boarding

8.1

Entertainment

7.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Franzi,Mar 2026

SFO - PDX

I love flying with Alaska. I think they sre the best airline.
Alaska Airlines
7.9
Good
12,422 reviews
Alaska Airlines
7.9
Good
12,422 reviews

Comfort

7.8

Crew

8.5

Overall

7.9

Boarding

8.1

Entertainment

7.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Franzi,Mar 2026

SFO - PDX

I love flying with Alaska. I think they sre the best airline.
Delta
7.9
Good
8,426 reviews
Alaska Airlines
7.9
Good
12,422 reviews

Comfort

7.8

Crew

8.5

Overall

7.9

Boarding

8.1

Entertainment

7.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Franzi,Mar 2026

SFO - PDX

I love flying with Alaska. I think they sre the best airline.
United Airlines
7.4
Good
9,751 reviews
Alaska Airlines
7.9
Good
12,422 reviews

Comfort

7.8

Crew

8.5

Overall

7.9

Boarding

8.1

Entertainment

7.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Franzi,Mar 2026

SFO - PDX

I love flying with Alaska. I think they sre the best airline.
Sun Country Air
6.8
Okay
334 reviews
Alaska Airlines
7.9
Good
12,422 reviews

Comfort

7.8

Crew

8.5

Overall

7.9

Boarding

8.1

Entertainment

7.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Franzi,Mar 2026

SFO - PDX

I love flying with Alaska. I think they sre the best airline.
Frontier
5.6
Fair
2,932 reviews
Alaska Airlines
7.9
Good
12,422 reviews

Comfort

7.8

Crew

8.5

Overall

7.9

Boarding

8.1

Entertainment

7.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Franzi,Mar 2026

SFO - PDX

I love flying with Alaska. I think they sre the best airline.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Portland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Portland from Washington, D.C. Dulles Intl?

    Portland (PDX) is the airport you will fly into if you book a flight from Washington, D.C. Dulles Intl to Portland. You should not have trouble finding flights to Portland from Washington, D.C. Dulles Intl; the airport handles an average of 1 inbound flight from Washington, D.C. Dulles Intl per day. You should also have plenty of airline options to choose from since 7 airlines have flights to the Portland airport from Washington, D.C. Dulles Intl. It is only a 6.0 mi journey from Portland (PDX) to Portland’s city center.

  • How long is the flight from Washington, D.C. Dulles Intl Airport to Portland?

    A quick flight from Washington, D.C. Dulles Intl Airport to Portland can take about 7h 21m. Delta provides one of the quickest options available for as low as $347. Airlines will cover a distance of 2320 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Portland round-trip?

    Frontier, at $130, was found to be the cheapest airline from Washington, D.C. Dulles Intl Airport to Portland.Alternate airlines to your destination round-trip include American Airlines and Delta. Frontier is priced at 71% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Portland one-way?

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $93. However, be on the lookout for offers from Southwest and Delta, as they are both options that can get you from Washington, D.C. Dulles Intl Airport to Portland for a low price.

  • What are the cheapest flights from Washington, D.C. Dulles Intl Airport to Portland?

    On average you can expect to pay $440 for a flight from Washington, D.C. Dulles Intl Airport to Portland. The cheapest flight overall is $258 while the most popular route, (Washington, D.C. Dulles Intl - Portland) is currently priced at $343.

  • Can I find deals for flights from Dulles Intl to Portland that include hotel bookings?

    Yes. In addition to deals on Dulles Intl to Portland flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dulles Intl to Portland?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Portland.

  • Can I find deals for business class flights from Dulles Intl to Portland?

    Yes. Cheapflights offers flight deals from Dulles Intl to Portland by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Portland?

    Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Portland (average of $341). Flying from Washington, D.C. Dulles Intl Airport to Portland in December is currently the most expensive (average of $638). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
Beaverton
Seaside
Vancouver
Lincoln City
Longview
Lake Oswego
Hillsboro
Clackamas
Troutdale
Cannon Beach
Long Beach
McMinnville
Tigard
The Dalles
Wilsonville
Depoe Bay
Stevenson
Tillamook
Astoria
Gresham

Browse thousands of different options on Cheapflights for your next trip

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Top 7 airlines flying from Dulles Intl to Portland

Discover the top 7 airlines that operate flights from Dulles Intl to Portland. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$130Average$294FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$182Average$516FlexibilityNo cancel feeOn-time71%
DeltaCheapest$202Average$388FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$276Average$508FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$296Average$386FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$297Average$476FlexibilityNo cancel feeOn-time69%
Sun Country AirCheapest$305Average$495FlexibilityNo cancel feeOn-time83%

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