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

Sun Country Air, at $181, 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 Frontier. Sun Country Air is priced at 63% 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 Delta, with whom users have recently found tickets for as low as $149. However, be on the lookout for offers from Sun Country Air and Alaska Airlines, as they are both options that can get you from Washington, D.C. Dulles Intl Airport to Portland for a low price.

What is the cheapest day to fly from Washington, D.C. Dulles Intl Airport to Portland?

Travelers seeking maximum savings on their Washington, D.C. Dulles Intl Airport to Portland flight should consider departing on Friday evenings when fares are most often at their lowest. Thursday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 $557 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 $227.

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

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

What is the cheapest day to fly round-trip from Washington, D.C. Dulles Intl Airport to Portland?

Users have found that leaving on a Monday can be a cost-effective option. It’s possible to save up to 15% on your flight compared to booking on days when demand is much higher.

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

Our data shows that January tends to be the cheapest month to fly to Portland from Washington, D.C. Dulles Intl Airport. Users have commonly found prices around $443 for the month, but tickets can be as low as $148. Due to multiple factors, prepare for potentially higher prices in December.

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.

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.

$149+ Flights from Washington, D.C. Dulles Intl Airport to Portland

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Dulles Intl to Portland with Cheapflights

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.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Portland are usually found in February or January, booked 2 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

Cheap flight deals from Dulles Intl to Portland

Round-trip from	$275 (Frontier)
One-way from	$149 (Delta)
Popular in	December
Cheapest in	February
Average price	$496
Good round-trip deal	$427 or less
Good one-way deal	$238 or less

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. 4% potential increase in price ($20 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($13 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in August 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

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 August 16, 2025.

Sun 10/51:55 pmIAD - PDX

2 stops13h 17mFrontier

Fri 10/1010:34 amPDX - IAD

2 stops22h 25mFrontier

Deal found 8/14

$275

Wed 10/297:43 amIAD - PDX

2 stops16h 07mAlaska Airlines

Tue 11/45:30 pmPDX - IAD

1 stop9h 53mAlaska Airlines

Deal found 8/14

$276

Mon 9/151:55 pmIAD - PDX

2 stops13h 17mMultiple Airlines

Thu 9/181:24 pmPDX - IAD

1 stop7h 59mMultiple Airlines

Deal found 8/15

$278

Thu 9/41:55 pmIAD - PDX

2 stops13h 17mMultiple Airlines

Tue 9/92:32 pmPDX - IAD

1 stop6h 51mMultiple Airlines

Deal found 8/15

$279

Mon 9/227:35 amIAD - PDX

1 stop8h 25mDelta

Sat 9/275:50 pmPDX - IAD

1 stop9h 11mDelta

Deal found 8/14

$283

Mon 9/81:55 pmIAD - PDX

2 stops13h 17mFrontier

Fri 9/126:05 amPDX - IAD

2 stops15h 10mFrontier

Deal found 8/14

$284

Wed 9/176:09 pmIAD - PDX

1 stop9h 06mMultiple Airlines

Wed 9/247:15 amPDX - IAD

2 stops23h 02mMultiple Airlines

Deal found 8/14

$291

Mon 11/175:25 pmIAD - PDX

1 stop8h 07mDelta

Sat 11/2212:40 amPDX - IAD

1 stop7h 49mDelta

Deal found 8/14

$292

Sat 9/207:00 amIAD - PDX

1 stop20h 15mHawaiian Airlines

Sat 9/271:24 pmPDX - IAD

1 stop7h 59mHawaiian Airlines

Deal found 8/14

$293

Tue 9/236:09 pmIAD - PDX

2 stops15h 09mAlaska Airlines

Tue 9/301:24 pmPDX - IAD

1 stop7h 59mAlaska Airlines

Deal found 8/14

$295

Sat 9/275:45 pmIAD - PDX

Nonstop5h 35mUnited Airlines

Sat 10/188:08 amPDX - IAD

Nonstop5h 07mUnited Airlines

Deal found 8/15

$297

Mon 8/258:00 amIAD - PDX

1 stop13h 14mFrontier

Wed 8/276:51 amPDX - IAD

2 stops11h 48mFrontier

Deal found 8/14

$298

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 August 16, 2025.

Wed 10/297:43 amIAD - PDX

2 stops16h 07mAlaska Airlines

Tue 11/45:30 pmPDX - IAD

1 stop9h 53mAlaska Airlines

Deal found 8/14

$276

Fri 11/77:35 amIAD - PDX

1 stop10h 03mDelta

Sat 11/151:37 pmPDX - IAD

1 stop6h 38mDelta

Deal found 8/14

$283

Mon 9/227:35 amIAD - PDX

1 stop8h 25mDelta

Sat 9/275:50 pmPDX - IAD

1 stop9h 11mDelta

Deal found 8/14

$283

Fri 1/912:35 pmIAD - PDX

1 stop9h 43mDelta

Mon 1/121:38 pmPDX - IAD

1 stop6h 38mDelta

Deal found 8/14

$283

Wed 9/107:35 amIAD - PDX

1 stop10h 03mDelta

Tue 9/161:20 pmPDX - IAD

1 stop7h 13mDelta

Deal found 8/14

$283

Tue 10/77:35 amIAD - PDX

1 stop8h 14mDelta

Tue 10/141:30 pmPDX - IAD

1 stop8h 10mDelta

Deal found 8/14

$283

Wed 10/86:18 amIAD - PDX

1 stop9h 32mDelta

Wed 10/151:30 pmPDX - IAD

1 stop8h 10mDelta

Deal found 8/13

$283

Sat 11/16:05 amIAD - PDX

1 stop7h 24mDelta

Mon 11/1012:40 amPDX - IAD

1 stop7h 49mDelta

Deal found 8/14

$283

Mon 9/87:35 amIAD - PDX

1 stop10h 03mDelta

Fri 9/125:50 pmPDX - IAD

1 stop9h 11mDelta

Deal found 8/14

$283

Fri 11/77:35 amIAD - PDX

1 stop10h 03mDelta

Mon 11/1011:10 amPDX - IAD

1 stop9h 05mDelta

Deal found 8/14

$283

Thu 10/27:35 amIAD - PDX

1 stop10h 17mDelta

Mon 10/610:58 pmPDX - IAD

1 stop7h 02mDelta

Deal found 8/14

$283

Thu 10/237:35 amIAD - PDX

1 stop8h 14mDelta

Mon 10/272:10 pmPDX - IAD

1 stop7h 02mDelta

Deal found 8/14

$283

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

Thu 8/216:00 amIAD - PDX

1 stop7h 40mDelta

Thu 9/45:45 pmPDX - IAD

1 stop9h 10mDelta

Deal found 8/15

$392

Thu 8/219:33 pmIAD - PDX

2 stops16h 50mFrontier

Thu 8/286:27 amPDX - IAD

2 stops14h 49mFrontier

Deal found 8/14

$393

Fri 8/228:00 amIAD - PDX

1 stop13h 14mFrontier

Wed 8/276:51 amPDX - IAD

2 stops11h 48mFrontier

Deal found 8/14

$317

Fri 8/228:00 amIAD - PDX

1 stop13h 14mFrontier

Tue 9/26:51 amPDX - IAD

2 stops11h 48mFrontier

Deal found 8/14

$342

Fri 8/228:00 amIAD - PDX

1 stop13h 14mFrontier

Thu 8/286:27 amPDX - IAD

2 stops14h 49mFrontier

Deal found 8/14

$353

Sat 8/236:10 amIAD - PDX

2 stops19h 29mFrontier

Tue 8/266:51 amPDX - IAD

2 stops11h 48mFrontier

Deal found 8/14

$311

Sat 8/236:10 amIAD - PDX

2 stops19h 29mFrontier

Wed 8/276:51 amPDX - IAD

2 stops11h 48mFrontier

Deal found 8/14

$391

Sun 8/2411:34 amIAD - PDX

2 stops23h 22mMultiple Airlines

Wed 8/276:35 pmPDX - IAD

1 stop14h 12mMultiple Airlines

Deal found 8/14

$395

Mon 8/258:00 amIAD - PDX

1 stop13h 14mFrontier

Wed 8/276:51 amPDX - IAD

2 stops11h 48mFrontier

Deal found 8/14

$298

Mon 8/258:00 amIAD - PDX

1 stop13h 14mFrontier

Tue 9/26:51 amPDX - IAD

2 stops11h 48mFrontier

Deal found 8/14

$323

Mon 8/258:00 amIAD - PDX

1 stop13h 14mFrontier

Thu 8/286:27 amPDX - IAD

2 stops14h 49mFrontier

Deal found 8/14

$334

Mon 8/258:00 amIAD - PDX

1 stop13h 14mMultiple Airlines

Sat 9/61:24 pmPDX - IAD

1 stop7h 59mMultiple Airlines

Deal found 8/14

$356

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 August 16, 2025.

Tue 9/96:15 amIAD - PDX

1 stop7h 25mDelta

Deal found 8/15

$149

Fri 10/1012:40 pmIAD - PDX

1 stop7h 42mSun Country Air

Deal found 8/15

$150

Wed 12/175:51 pmIAD - PDX

1 stop8h 30mAlaska Airlines

Deal found 8/14

$151

Mon 8/258:00 amIAD - PDX

1 stop13h 14mFrontier

Deal found 8/15

$153

Thu 9/251:55 pmIAD - PDX

2 stops13h 17mFrontier

Deal found 8/14

$154

Wed 10/86:25 amIAD - PDX

1 stop9h 00mAlaska Airlines

Deal found 8/14

$155

Wed 1/74:30 pmIAD - PDX

1 stop9h 05mSouthwest

Deal found 8/14

$156

Sat 11/18:36 pmIAD - PDX

2 stops19h 20mFrontier

Deal found 8/15

$157

Fri 9/261:55 pmIAD - PDX

2 stops13h 17mFrontier

Deal found 8/14

$158

Wed 9/105:45 amIAD - PDX

2 stops14h 40mSouthwest

Deal found 8/15

$159

Sun 10/1212:46 pmIAD - PDX

1 stop7h 54mSun Country Air

Deal found 8/15

$160

Wed 10/225:42 pmIAD - PDX

1 stop19h 02mAlaska Airlines

Deal found 8/14

$161

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

Wed 10/29

7:43 am-8:50 pm

2 stops16h 07m

Portland

Tue 11/4

5:30 pm-6:23 am

1 stop9h 53m

$276

Washington, D.C.Portland

IAD - PDX

IADPDX

Washington, D.C. Dulles Intl

Fri 11/7

7:35 am-2:38 pm

1 stop10h 03m

Portland

Sat 11/15

1:37 pm-11:15 pm

1 stop6h 38m

$283

Washington, D.C.Portland

IAD - PDX

IADPDX

Washington, D.C. Dulles Intl

Mon 9/22

7:35 am-1:00 pm

1 stop8h 25m

Portland

Sat 9/27

5:50 pm-6:01 am

1 stop9h 11m

$283

Washington, D.C.Portland

IAD - PDX

IADPDX

Washington, D.C. Dulles Intl

Fri 1/9

12:35 pm-7:18 pm

1 stop9h 43m

Portland

Mon 1/12

1:38 pm-11:16 pm

1 stop6h 38m

$283

Washington, D.C.Portland

IAD - PDX

IADPDX

Washington, D.C. Dulles Intl

Wed 9/10

7:35 am-2:38 pm

1 stop10h 03m

Portland

Tue 9/16

1:20 pm-11:33 pm

1 stop7h 13m

$283

Washington, D.C.Portland

IAD - PDX

IADPDX

Washington, D.C. Dulles Intl

Tue 10/7

7:35 am-12:49 pm

1 stop8h 14m

Portland

Tue 10/14

1:30 pm-12:40 am

1 stop8h 10m

$283

Washington, D.C.Portland

IAD - PDX

IADPDX

Washington, D.C. Dulles Intl

Wed 10/8

6:18 am-12:50 pm

1 stop9h 32m

Portland

Wed 10/15

1:30 pm-12:40 am

1 stop8h 10m

$283

Washington, D.C.Portland

IAD - PDX

IADPDX

Washington, D.C. Dulles Intl

Sat 11/1

6:05 am-10:29 am

1 stop7h 24m

Portland

Mon 11/10

12:40 am-11:29 am

1 stop7h 49m

$283

Washington, D.C.Portland

IAD - PDX

IADPDX

Washington, D.C. Dulles Intl

Mon 9/8

7:35 am-2:38 pm

1 stop10h 03m

Portland

Fri 9/12

5:50 pm-6:01 am

1 stop9h 11m

$283

Washington, D.C.Portland

IAD - PDX

IADPDX

Washington, D.C. Dulles Intl

Fri 11/7

7:35 am-2:38 pm

1 stop10h 03m

Portland

Mon 11/10

11:10 am-11:15 pm

1 stop9h 05m

$283

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/15

Showing 1-10 of 23 results

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 2 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, November is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Portland (average of $277). Flying from Washington, D.C. Dulles Intl Airport to Portland in March is currently the most expensive (average of $369). 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 afternoon, which can drop the price by up to 23% versus a flight at noon.

Reviews of airlines servicing Portland

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

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why

Alaska Airlines

8.0

Very good

10,000 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why

Southwest

8.0

Very good

4,246 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why

Delta

8.0

Very good

7,985 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why

United Airlines

7.4

Good

8,916 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why

Frontier

5.8

Fair

3,211 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why

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 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.
What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Portland round-trip?
Sun Country Air, at $181, 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 Frontier. Sun Country Air is priced at 63% 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 Delta, with whom users have recently found tickets for as low as $149. However, be on the lookout for offers from Sun Country Air and Alaska 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 $557 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 $227.
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, November is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Portland (average of $277). Flying from Washington, D.C. Dulles Intl Airport to Portland in March is currently the most expensive (average of $369). 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

Vancouver

Seaside

Beaverton

Clackamas

McMinnville

Lake Oswego

Hillsboro

Lincoln City

Cannon Beach

Long Beach

Longview

Tigard

Depoe Bay

Stevenson

Woodburn

Wilsonville

Pacific City

Troutdale

Tillamook

Gresham

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Dulles Intl to Portland

Reagan-National to Portland flights

Baltimore to Portland flights

Reagan-National to Medford flights

Dulles Intl to Boise flights

Baltimore to Boise flights

Reagan-National to Boise flights

Dulles Intl to Medford flights

Baltimore to Redmond flights

Dulles Intl to Redmond flights

Reagan-National to Redmond flights

Dulles Intl to Eugene flights

Reagan-National to Eugene flights

Baltimore to Eugene flights

Baltimore to Medford flights

Dulles Intl to North Bend flights

Dulles Intl to Yakima flights

Baltimore to Yakima flights

Reagan-National to Yakima flights

Complete your trip

Portland car rentals

Portland Airport car rentals

Pearl District car rentals

Southeast Portland car rentals

Northeast Portand car rentals

Southwest Portland car rentals

North Portland car rentals

Eastmoreland car rentals

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$470	FlexibilityNo cancel fee	On-time83%
American Airlines	Cheapest$182	Average$456	FlexibilityNo cancel fee	On-time71%
Frontier	Cheapest$191	Average$294	FlexibilityNo cancel fee	On-time62%
Delta	Cheapest$298	Average$403	FlexibilityNo cancel fee	On-timeN/A
Alaska Airlines	Cheapest$316	Average$469	FlexibilityNo cancel fee	On-time75%
United Airlines	Cheapest$350	Average$544	FlexibilityNo cancel fee	On-time69%
Southwest	Cheapest$366	Average$532	FlexibilityNo cancel fee	On-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$149+ 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 9/9. 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 February or January, booked 2 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

Cheap flight deals from Dulles Intl to Portland

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find 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 August 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 August 16, 2025.

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.

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.

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 August 8, 2025.

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

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 August 16, 2025.

Reviews of airlines servicing Portland

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?

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

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

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

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

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

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

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

Traveling to a place near Portland?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Dulles Intl to Portland

See prices for flight routes from nearby airports that may be better suited for you.

Top 7 airlines flying from Dulles Intl to Portland

100% Free

Book with Flexibility

Travel Smart

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 August 16, 2025.