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$153+ 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 11/20. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — PDX
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Portland are usually found in February or October, booked 46 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

Cheap 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 October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$292
(United Airlines)

One-way from

$153
(Booking.com)

Popular in

December

Cheapest in

February

Average price

$426

Good round-trip deal

$297 or less

Good one-way deal

$228 or less
Provider with most accurate pricing for Washington, D.C. Dulles Intl-Portland flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Portland flights.
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From Washington, D.C. Dulles Intl to Portland
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One-way flight from Washington, D.C. Dulles Intl to Portland
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Highest demand for flights based on searches. 5% potential increase in price ($29 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to Portland.
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Price to beat on a one-way flight from Washington, D.C. Dulles Intl to Portland.
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Find 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 October 30, 2025.

This Delta deal was found by Cheapflights users on 10/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/35:03 pmIAD - PDX
1 stop8h 07mDelta
Tue 12/912:32 amPDX - IAD
1 stop7h 46mDelta
Deal found 10/29$297
This Alaska Airlines deal was found by Cheapflights users on 10/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/57:34 amIAD - PDX
1 stop9h 16mAlaska Airlines
Mon 12/81:34 pmPDX - IAD
1 stop24h 02mAlaska Airlines
Deal found 10/28$304
This Delta deal was found by Cheapflights users on 10/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/197:15 amIAD - PDX
1 stop9h 03mDelta
Sun 11/232:23 pmPDX - IAD
1 stop7h 02mDelta
Deal found 10/30$305
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/45:45 amIAD - PDX
2 stops30h 49mMultiple Airlines
Mon 12/85:01 pmPDX - IAD
1 stop22h 51mMultiple Airlines
Deal found 10/28$306
This United Airlines deal was found by Cheapflights users on 10/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/275:37 pmIAD - PDX
Nonstop5h 52mUnited Airlines
Tue 12/23:55 pmPDX - IAD
1 stop10h 32mUnited Airlines
Deal found 10/28$307
This United Airlines deal was found by Cheapflights users on 10/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/81:10 pmIAD - PDX
1 stop8h 35mUnited Airlines
Wed 12/171:14 pmPDX - IAD
1 stop7h 01mUnited Airlines
Deal found 10/27$312
This American Airlines deal was found by Cheapflights users on 10/28. 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.
Sun 12/146:00 amIAD - PDX
1 stop9h 54mAmerican Airlines
Wed 1/710:15 pmPDX - IAD
1 stop9h 43mAmerican Airlines
Deal found 10/28$316
This Southwest deal was found by Cheapflights users on 10/29. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/267:50 pmIAD - PDX
1 stop7h 35mSouthwest
Wed 12/35:30 amPDX - IAD
1 stop8h 35mSouthwest
Deal found 10/29$317
This United Airlines deal was found by Cheapflights users on 10/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/265:37 pmIAD - PDX
Nonstop5h 52mUnited Airlines
Wed 12/31:14 pmPDX - IAD
1 stop7h 01mUnited Airlines
Deal found 10/29$318
This Delta deal was found by Cheapflights users on 10/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/277:15 amIAD - PDX
1 stop11h 18mDelta
Wed 12/312:32 amPDX - IAD
1 stop7h 46mDelta
Deal found 10/28$321
This United Airlines deal was found by Cheapflights users on 10/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/196:00 amIAD - PDX
1 stop9h 13mUnited Airlines
Sat 11/227:10 pmPDX - IAD
1 stop7h 06mUnited Airlines
Deal found 10/28$323

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 October 30, 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

Dulles Intl

Fly to

Portland

Route

Depart

Return

Price

Washington, D.C.Portland

IAD - PDX

IADPDX

Washington, D.C. Dulles Intl

Wed 11/19

7:15 am-1:18 pm

1 stop9h 03m

Portland

Sun 11/23

2:23 pm-12:25 am

1 stop7h 02m

$305

Washington, D.C.Portland

IAD - PDX

IADPDX

Washington, D.C. Dulles Intl

Wed 1/21

5:26 pm-1:43 pm

1 stop23h 17m

Portland

Sun 1/25

10:34 am-5:04 pm

1 stop27h 30m

$316

Washington, D.C.Portland

IAD - PDX

IADPDX

Washington, D.C. Dulles Intl

Sun 12/14

3:38 pm-10:19 pm

1 stop9h 41m

Portland

Wed 1/7

7:00 am-5:17 pm

1 stop7h 17m

$317

Washington, D.C.Portland

IAD - PDX

IADPDX

Washington, D.C. Dulles Intl

Fri 1/9

12:09 pm-7:08 pm

1 stop9h 59m

Portland

Wed 1/14

1:53 pm-11:57 pm

1 stop7h 04m

$317

Washington, D.C.Portland

IAD - PDX

IADPDX

Washington, D.C. Dulles Intl

Thu 11/27

7:15 am-3:33 pm

1 stop11h 18m

Portland

Wed 12/3

12:32 am-11:18 am

1 stop7h 46m

$321

Washington, D.C.Portland

IAD - PDX

IADPDX

Washington, D.C. Dulles Intl

Fri 1/16

5:26 pm-1:43 pm

1 stop23h 17m

Portland

Mon 1/19

9:04 pm-5:04 pm

2 stops17h 00m

$332

Washington, D.C.Portland

IAD - PDX

IADPDX

Washington, D.C. Dulles Intl

Thu 1/15

4:40 pm-10:45 pm

1 stop9h 05m

Portland

Thu 1/22

5:05 am-9:55 pm

2 stops13h 50m

$348

Washington, D.C.Portland

IAD - PDX

IADPDX

Washington, D.C. Dulles Intl

Sat 12/20

5:50 pm-8:48 pm

Nonstop5h 58m

Portland

Wed 12/24

7:45 pm-6:47 am

1 stop8h 02m

$351

Washington, D.C.Portland

IAD - PDX

IADPDX

Washington, D.C. Dulles Intl

Tue 12/2

6:00 pm-12:37 am

1 stop9h 37m

Portland

Fri 12/5

8:30 am-7:08 pm

1 stop7h 38m

$357

Washington, D.C.Portland

IAD - PDX

IADPDX

Washington, D.C. Dulles Intl

Wed 11/19

7:15 am-1:18 pm

1 stop9h 03m

Portland

Sat 11/22

2:23 pm-12:54 am

1 stop7h 31m

$375

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Showing 1-10 of 23 results
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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 October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
CheapTicketsDealPrice Accuracy3 starsTrust 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Washington, D.C. Dulles Intl Airport-Portland flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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?

Use this chart to determine the optimal time to book a round-trip flight from Dulles Intl to Portland. Price data was last updated on October 24, 2025.

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 46 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, April is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Portland (average of $225). Flying from Washington, D.C. Dulles Intl Airport to Portland in December is currently the most expensive (average of $337). 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 October 30, 2025.

When flying from Washington, D.C. Dulles Intl Airport to Portland, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 41% versus a flight in the morning.

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 October 30, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest, and Delta 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
8.0
Very good
11,214 reviews

Comfort

7.8

Entertainment

7.0

Food

7.1

Overall

8.0

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Alaska Airlines
8.0
Very good
11,214 reviews
Alaska Airlines
8.0
Very good
11,214 reviews

Comfort

7.8

Entertainment

7.0

Food

7.1

Overall

8.0

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Southwest
8.0
Very good
4,242 reviews
Alaska Airlines
8.0
Very good
11,214 reviews

Comfort

7.8

Entertainment

7.0

Food

7.1

Overall

8.0

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Delta
7.9
Good
7,993 reviews
Alaska Airlines
8.0
Very good
11,214 reviews

Comfort

7.8

Entertainment

7.0

Food

7.1

Overall

8.0

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
United Airlines
7.4
Good
8,998 reviews
Alaska Airlines
8.0
Very good
11,214 reviews

Comfort

7.8

Entertainment

7.0

Food

7.1

Overall

8.0

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Frontier
5.8
Fair
3,123 reviews
Alaska Airlines
8.0
Very good
11,214 reviews

Comfort

7.8

Entertainment

7.0

Food

7.1

Overall

8.0

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.

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 9h 03m. Delta provides one of the quickest options available for as low as $305. 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?

    American Airlines, at $182, was found to be the cheapest airline from Washington, D.C. Dulles Intl Airport to Portland.Alternate airlines to your destination round-trip include Sun Country Air and Frontier. American Airlines is priced at 62% lower than the current average price of a flight leaving 3 months from now.

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

    On average you can expect to pay $604 for a flight from Washington, D.C. Dulles Intl Airport to Portland. The cheapest flight overall is $158 while the most popular route, (Washington, D.C. Dulles Intl - Portland) is currently priced at $297.

  • 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, April is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Portland (average of $225). Flying from Washington, D.C. Dulles Intl Airport to Portland in December is currently the most expensive (average of $337). 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
Vancouver
Seaside
Clackamas
Lincoln City
Lake Oswego
Beaverton
McMinnville
Hillsboro
Cannon Beach
Long Beach
Longview
Tigard
The Dalles
Depoe Bay
Stevenson
Wilsonville
Pacific City
Gresham
Tillamook
Troutdale

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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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$182Average$516FlexibilityNo cancel feeOn-time71%
Sun Country AirCheapest$188Average$495FlexibilityNo cancel feeOn-time83%
FrontierCheapest$191Average$294FlexibilityNo cancel feeOn-time62%
DeltaCheapest$226Average$396FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$297Average$521FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$316Average$474FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$326Average$532FlexibilityNo cancel feeOn-time63%

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