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 51m. Delta provides one of the quickest options available for as low as $298. 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 Sun Country Air and American Airlines. Frontier is priced at 73% 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 Hawaiian Airlines, as they are both options that can get you from Washington, D.C. Dulles Intl Airport to Portland for a low price.

In terms of precipitation, rainfall in Portland ranges from 0.7 - 5.6 inches per month. November is typically the wettest month, when rainfall can reach 5.6 in. July is typically the driest time to visit Portland when rainfall is around 0.7 in.

If weather is an important factor for your trip to Portland, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 41.0 F).

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

On average you can expect to pay $729 for a flight from Washington, D.C. Dulles Intl Airport to Portland. The cheapest flight overall is $188 while the most popular route, (Washington, D.C. Dulles Intl - Portland) is currently priced at $287.

What are the most popular airlines that fly from Washington, D.C. Dulles Intl Airport to Portland?

United Airlines, Delta and Alaska Airlines are the most popular airlines when flying from Washington, D.C. Dulles Intl Airport to Portland.

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.

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 0 inbound flights 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.

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.

$158+ Flights from Washington, D.C. Dulles Intl Airport to Portland

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

Airfare is below average for this route at the moment. Washington, D.C. Dulles Intl Airport to Portland flights typically cost between $592 and $814 in February. The cheapest round-trip price found within the last 3 days was $296 on Alaska Airlines (Feb 11-Feb 18).

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1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

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Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Portland are usually found in October or September, booked 46 days in advance, depart on a Saturday or Tuesday and return on a Wednesday

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 December 16, 2025.

Wed 12/315:50 pmIAD - PDX

Nonstop5h 58mUnited Airlines

Sun 1/411:55 pmPDX - IAD

1 stop8h 50mUnited Airlines

Deal found 12/14

$458

Wed 12/311:57 pmIAD - PDX

2 stops11h 02mAmerican Airlines

Mon 1/510:21 pmPDX - IAD

1 stop9h 37mAmerican Airlines

Deal found 12/14

$522

Wed 12/245:50 pmIAD - PDX

Nonstop5h 58mUnited Airlines

Mon 1/510:52 pmPDX - IAD

Nonstop4h 58mUnited Airlines

Deal found 12/14

$553

Wed 12/241:57 pmIAD - PDX

1 stop10h 22mAmerican Airlines

Mon 1/510:21 pmPDX - IAD

1 stop9h 37mAmerican Airlines

Deal found 12/14

$562

Mon 12/226:05 amIAD - PDX

1 stop9h 45mAmerican Airlines

Sun 1/1110:15 pmPDX - IAD

1 stop9h 43mAmerican Airlines

Deal found 12/15

$568

Mon 12/222:09 pmIAD - PDX

3 stops58h 52mMultiple Airlines

Sun 1/1112:10 pmPDX - IAD

2 stops44h 33mMultiple Airlines

Deal found 12/16

$573

Wed 12/311:57 pmIAD - PDX

2 stops11h 02mAmerican Airlines

Sun 1/411:21 pmPDX - IAD

2 stops11h 06mAmerican Airlines

Deal found 12/15

$588

Best flights from Dulles Intl to Portland
Discover carefully curated flight deals from Dulles Intl to Portland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 16, 2025.

Tue 1/135:26 pmIAD - PDX

2 stops9h 51mDelta

Tue 1/207:37 pmPDX - IAD

2 stops13h 15mDelta

Deal found 12/14

$298

Wed 2/256:20 pmIAD - PDX

1 stop18h 30mAlaska Airlines

Fri 2/279:26 pmPDX - IAD

1 stop17h 01mAlaska Airlines

Deal found 12/14

$316

Mon 2/234:40 pmIAD - PDX

1 stop9h 05mSouthwest

Wed 2/2511:05 amPDX - IAD

1 stop7h 50mSouthwest

Deal found 12/13

$317

Fri 1/95:26 pmIAD - PDX

2 stops9h 51mDelta

Tue 1/1311:10 amPDX - IAD

2 stops9h 38mDelta

Deal found 12/14

$298

Thu 1/156:04 pmIAD - PDX

1 stop18h 25mAlaska Airlines

Mon 1/195:35 pmPDX - IAD

1 stop19h 51mAlaska Airlines

Deal found 12/14

$326

Sat 2/147:00 amIAD - PDX

1 stop8h 44mDelta

Thu 2/191:27 pmPDX - IAD

1 stop6h 43mDelta

Deal found 12/14

$312

Fri 3/66:20 pmIAD - PDX

1 stop18h 30mAlaska Airlines

Mon 3/95:35 pmPDX - IAD

1 stop20h 52mAlaska Airlines

Deal found 12/15

$336

Wed 1/2112:40 pmIAD - PDX

1 stop9h 33mDelta

Sun 1/257:37 pmPDX - IAD

2 stops13h 15mDelta

Deal found 12/14

$317

Sun 2/226:20 pmIAD - PDX

1 stop18h 30mAlaska Airlines

Fri 2/272:31 pmPDX - IAD

1 stop23h 56mAlaska Airlines

Deal found 12/15

$336

Tue 1/135:26 pmIAD - PDX

2 stops9h 51mDelta

Sat 1/176:00 amPDX - IAD

1 stop9h 56mDelta

Deal found 12/15

$317

Last-minute flights from Dulles Intl to Portland
Discover last-minute flight deals from Dulles Intl to Portland. Data last updated December 16, 2025 and is based on user searches.

Mon 1/55:50 pmIAD - PDX

Nonstop5h 55mUnited Airlines

Sat 1/108:30 amPDX - IAD

1 stop9h 37mUnited Airlines

Deal found 12/15

$318

Tue 1/66:43 pmIAD - PDX

1 stop8h 29mAlaska Airlines

Fri 1/95:40 pmPDX - IAD

1 stop20h 24mAlaska Airlines

Deal found 12/15

$316

Wed 1/76:00 amIAD - PDX

1 stop10h 21mAmerican Airlines

Wed 1/147:38 amPDX - IAD

1 stop10h 39mAmerican Airlines

Deal found 12/16

$296

Wed 1/77:05 amIAD - PDX

1 stop8h 27mDelta

Mon 1/121:30 pmPDX - IAD

1 stop6h 40mDelta

Deal found 12/16

$302

Wed 1/72:24 pmIAD - PDX

1 stop9h 48mUnited Airlines

Sun 1/117:51 pmPDX - IAD

1 stop8h 44mUnited Airlines

Deal found 12/15

$317

Tue 1/132:20 pmIAD - PDX

2 stops12h 57mDelta

Tue 1/207:37 pmPDX - IAD

2 stops13h 15mDelta

Deal found 12/16

$298

Wed 1/1411:34 amIAD - PDX

2 stops11h 53mAmerican Airlines

Sun 1/1810:15 pmPDX - IAD

1 stop9h 43mAmerican Airlines

Deal found 12/15

$322

Thu 1/157:30 amIAD - PDX

1 stop19h 47mDelta

Sun 1/186:00 amPDX - IAD

1 stop9h 56mDelta

Deal found 12/15

$312

Wed 1/211:08 pmIAD - PDX

1 stop10h 16mAmerican Airlines

Sun 1/2510:15 pmPDX - IAD

1 stop9h 43mAmerican Airlines

Deal found 12/16

$306

Wed 1/285:30 pmIAD - PDX

1 stop7h 45mSouthwest

Tue 2/35:05 amPDX - IAD

2 stops13h 50mSouthwest

Deal found 12/15

$308

Sat 1/316:04 pmIAD - PDX

1 stop18h 25mAlaska Airlines

Sat 2/76:00 amPDX - IAD

1 stop7h 26mAlaska Airlines

Deal found 12/16

$300

One-way flights from Dulles Intl to Portland
Search for one-way flight options from Dulles Intl to Portland. Find affordable one-way fares based on user searches. Data last updated December 16, 2025.

Thu 1/89:59 pmIAD - PDX

3 stops45h 32mMultiple Airlines

Deal found 12/15

$158

Tue 2/39:05 amIAD - PDX

2 stops16h 00mSouthwest

Deal found 12/15

$159

Thu 1/295:37 pmIAD - PDX

3 stops29h 50mMultiple Airlines

Deal found 12/16

$160

Tue 1/611:34 amIAD - PDX

2 stops11h 53mAmerican Airlines

Deal found 12/16

$164

Thu 1/85:26 pmIAD - PDX

1 stop9h 24mAlaska Airlines

Deal found 12/15

$167

Thu 1/295:26 pmIAD - PDX

1 stop9h 24mAlaska Airlines

Deal found 12/16

$168

Sun 1/252:15 pmIAD - PDX

1 stop9h 17mDelta

Deal found 12/15

$169

Fri 1/98:40 amIAD - PDX

3 stops34h 51mMultiple Airlines

Deal found 12/16

$173

Wed 1/76:00 amIAD - PDX

2 stops11h 48mAmerican Airlines

Deal found 12/16

$174

Sun 2/15:37 pmIAD - PDX

3 stops29h 50mMultiple Airlines

Deal found 12/16

$177

Sat 3/217:01 pmIAD - PDX

1 stop8h 02mAlaska Airlines

Deal found 12/15

$178

Find flight deals from Dulles Intl to Portland

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$296 (Alaska Airlines)
One-way from	$158 (Kiwi.com)
Popular in	December
Cheapest in	October
Average price	$652
Good round-trip deal	$403 or less
Good one-way deal	$369 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. 7% potential increase in price ($38 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($14 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

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

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

Tue 1/13

5:26 pm-12:17 am

2 stops9h 51m

Portland

Tue 1/20

7:37 pm-11:52 am

2 stops13h 15m

$298

Washington, D.C.Portland

IAD - PDX

IADPDX

Washington, D.C. Dulles Intl

Fri 1/9

5:26 pm-12:17 am

2 stops9h 51m

Portland

Tue 1/13

11:10 am-11:48 pm

2 stops9h 38m

$298

Washington, D.C.Portland

IAD - PDX

IADPDX

Washington, D.C. Dulles Intl

Sat 2/14

7:00 am-12:44 pm

1 stop8h 44m

Portland

Thu 2/19

1:27 pm-11:10 pm

1 stop6h 43m

$312

Washington, D.C.Portland

IAD - PDX

IADPDX

Washington, D.C. Dulles Intl

Wed 2/25

6:20 pm-9:50 am

1 stop18h 30m

Portland

Fri 2/27

9:26 pm-5:27 pm

1 stop17h 01m

$316

Washington, D.C.Portland

IAD - PDX

IADPDX

Washington, D.C. Dulles Intl

Mon 2/23

4:40 pm-10:45 pm

1 stop9h 05m

Portland

Wed 2/25

11:05 am-9:55 pm

1 stop7h 50m

$317

Washington, D.C.Portland

IAD - PDX

IADPDX

Washington, D.C. Dulles Intl

Wed 1/21

12:40 pm-7:13 pm

1 stop9h 33m

Portland

Sun 1/25

7:37 pm-11:52 am

2 stops13h 15m

$317

Washington, D.C.Portland

IAD - PDX

IADPDX

Washington, D.C. Dulles Intl

Tue 1/13

5:26 pm-12:17 am

2 stops9h 51m

Portland

Sat 1/17

6:00 am-6:56 pm

1 stop9h 56m

$317

Washington, D.C.Portland

IAD - PDX

IADPDX

Washington, D.C. Dulles Intl

Thu 1/15

6:04 pm-9:29 am

1 stop18h 25m

Portland

Mon 1/19

5:35 pm-4:26 pm

1 stop19h 51m

$326

Washington, D.C.Portland

IAD - PDX

IADPDX

Washington, D.C. Dulles Intl

Fri 3/6

6:20 pm-9:50 am

1 stop18h 30m

Portland

Mon 3/9

5:35 pm-5:27 pm

1 stop20h 52m

$336

Washington, D.C.Portland

IAD - PDX

IADPDX

Washington, D.C. Dulles Intl

Sun 2/22

6:20 pm-9:50 am

1 stop18h 30m

Portland

Fri 2/27

2:31 pm-5:27 pm

1 stop23h 56m

$336

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/15

Showing 1-10 of 20 results

Compare providers for flights from Dulles Intl to Portland

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 December.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 stars	Trust Score*3 stars
Priceline	Price Accuracy1 star	Trust Score*3 stars
CheapTicketsDeal	Price Accuracy3 stars	Trust 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?

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 May is currently the most expensive (average of $336). 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?

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.

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

Reviews of airlines servicing Portland

Read reviews from past customers who have flown Alaska Airlines, Delta, and United 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

8.0

Very good

11,470 reviews

Reviews

1 / 20

2.0

Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.

Alaska Airlines

8.0

Very good

11,470 reviews

Alaska Airlines

8.0

Very good

11,470 reviews

Reviews

1 / 20

2.0

Mediocre

Art,Dec 2025

SAN - OGG

Delta

7.9

Good

8,008 reviews

Alaska Airlines

8.0

Very good

11,470 reviews

Reviews

1 / 20

2.0

Mediocre

Art,Dec 2025

SAN - OGG

United Airlines

7.4

Good

9,092 reviews

Alaska Airlines

8.0

Very good

11,470 reviews

Reviews

1 / 20

2.0

Mediocre

Art,Dec 2025

SAN - OGG

Sun Country Air

6.9

Okay

333 reviews

Alaska Airlines

8.0

Very good

11,470 reviews

Reviews

1 / 20

2.0

Mediocre

Art,Dec 2025

SAN - OGG

Frontier

5.8

Fair

3,082 reviews

Alaska Airlines

8.0

Very good

11,470 reviews

Reviews

1 / 20

2.0

Mediocre

Art,Dec 2025

SAN - OGG

Related info for your journey

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 0 inbound flights 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 51m. Delta provides one of the quickest options available for as low as $298. 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 Sun Country Air and American Airlines. Frontier is priced at 73% 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 Hawaiian Airlines, 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 $729 for a flight from Washington, D.C. Dulles Intl Airport to Portland. The cheapest flight overall is $188 while the most popular route, (Washington, D.C. Dulles Intl - Portland) is currently priced at $287.
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 May is currently the most expensive (average of $336). 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.

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Other flights to Portland

Top 7 airlines flying from Dulles Intl to Portland

Airline	Cheapest	Average	Flexibility	On-time
Sun Country Air	Cheapest$181	Average$492	FlexibilityNo cancel fee	On-time83%
American Airlines	Cheapest$182	Average$516	FlexibilityNo cancel fee	On-time71%
Frontier	Cheapest$191	Average$294	FlexibilityNo cancel fee	On-time62%
Delta	Cheapest$226	Average$436	FlexibilityNo cancel fee	On-timeN/A
Southwest	Cheapest$296	Average$426	FlexibilityNo cancel fee	On-time63%
United Airlines	Cheapest$297	Average$504	FlexibilityNo cancel fee	On-time69%
Alaska Airlines	Cheapest$316	Average$454	FlexibilityNo cancel fee	On-time75%

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$158+ 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 1/8. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Dulles Intl to Portland with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Portland are usually found in October or September, booked 46 days in advance, depart on a Saturday or Tuesday and return on a Wednesday

Cheap flight deals from Dulles Intl to Portland

Cheapest flights from Dulles Intl to PortlandExplore 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 December 16, 2025.

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 December 16, 2025.

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Best time to book a flight from Dulles Intl to Portland

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Cheapflights Insights

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

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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.

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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 December 16, 2025.