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

Cheapflights users have booked flights from Portland to Washington, D.C. Dulles Intl Airport round-trip from $312. Other airlines that can offer you cheap pricing are United Airlines, from $314, and Delta, from $317. Alaska Airlines is currently priced 38% below the average price you’ll pay for this route.

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, 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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

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

While on average a flight from Portland to Washington, D.C. Dulles Intl Airport is generally $1,127, our data shows the cheapest flight currently is $168. When looking at the most popular route, (Portland - Washington, D.C. Dulles Intl), you can expect to pay $297 for that flight.

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

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

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

Users have found that flying from Portland to Washington, D.C. Dulles Intl Airport on a Saturday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

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

Our data shows that August tends to be the cheapest month to fly to Washington, D.C. Dulles Intl Airport from Portland. Users have commonly found prices around $440 for the month, but tickets can be as low as $123. Due to multiple factors, prepare for potentially higher prices in March.

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

For a flight from Portland to Washington, D.C. Dulles Intl, you will be flying from Portland. Portland (PDX) is just 6.0 mi from the center of the city. Portland is the only Portland airport and it handles 1 outbound flight to Washington, D.C. Dulles Intl per day. 5 airlines have flights to Washington, D.C. Dulles Intl from Portland on a regular basis.

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

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

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

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

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

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

$159+ Flights from Portland to Washington, D.C. Dulles Intl Airport

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Cheapflights Tip: The best prices from Portland to Washington, D.C. Dulles Intl are usually found in February or April, booked 89 days in advance, depart on a Friday or Wednesday and return on a Tuesday

Cheap flight deals from Portland to Dulles Intl

Round-trip from	$312 (Alaska Airlines)
One-way from	$159 (Delta)
Popular in	December
Cheapest in	February
Average price	$532
Good round-trip deal	$462 or less
Good one-way deal	$225 or less

From Portland to Washington, D.C. Dulles Intl

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One-way flight from Portland to Washington, D.C. Dulles Intl

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Highest demand for flights based on searches. 13% potential increase in price ($76 potential increase over avg. RT price).

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Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).

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Average for round-trip flights in July 2025

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Price to beat on a round-trip flight from Portland to Washington, D.C. Dulles Intl.

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Price to beat on a one-way flight from Portland to Washington, D.C. Dulles Intl.

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Find flight deals from Portland to Dulles Intl

Cheapest flights from Portland to Dulles Intl
Explore the most affordable flight options available from Portland to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 28, 2025.

Wed 9/241:24 pmPDX - IAD

1 stop7h 59mAlaska Airlines

Tue 9/307:00 amIAD - PDX

2 stops12h 46mAlaska Airlines

Deal found 7/26

$312

Wed 9/178:15 amPDX - IAD

Nonstop5h 05mUnited Airlines

Sat 9/205:33 pmIAD - PDX

Nonstop5h 30mUnited Airlines

Deal found 7/26

$314

Fri 9/1212:45 amPDX - IAD

1 stop9h 45mDelta

Sat 9/206:15 amIAD - PDX

1 stop9h 20mDelta

Deal found 7/26

$317

Wed 12/39:15 amPDX - IAD

2 stops9h 59mAmerican Airlines

Wed 12/1010:48 amIAD - PDX

1 stop9h 18mAmerican Airlines

Deal found 7/27

$322

Tue 8/268:37 pmPDX - IAD

1 stop7h 55mHawaiian Airlines

Sun 8/316:09 pmIAD - PDX

1 stop8h 50mHawaiian Airlines

Deal found 7/28

$336

Thu 10/305:40 amPDX - IAD

2 stops10h 20mSouthwest

Tue 11/47:40 amIAD - PDX

1 stop8h 50mSouthwest

Deal found 7/27

$342

Fri 8/111:00 amPDX - IAD

1 stop16h 34mFrontier

Mon 8/117:30 amIAD - PDX

1 stop8h 21mFrontier

Deal found 7/26

$345

Mon 8/1811:00 amPDX - IAD

1 stop16h 34mMultiple Airlines

Thu 8/2112:48 pmIAD - PDX

1 stop7h 36mMultiple Airlines

Deal found 7/26

$353

Best flights from Portland to Dulles Intl
Discover carefully curated flight deals from Portland to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 28, 2025.

Wed 9/241:24 pmPDX - IAD

1 stop7h 59mAlaska Airlines

Tue 9/307:00 amIAD - PDX

2 stops12h 46mAlaska Airlines

Deal found 7/26

$312

Wed 9/178:15 amPDX - IAD

Nonstop5h 05mUnited Airlines

Sat 9/205:33 pmIAD - PDX

Nonstop5h 30mUnited Airlines

Deal found 7/26

$314

Fri 9/1212:45 amPDX - IAD

1 stop9h 45mDelta

Sat 9/206:15 amIAD - PDX

1 stop9h 20mDelta

Deal found 7/26

$317

Tue 8/1911:59 pmPDX - IAD

1 stop8h 02mAmerican Airlines

Sat 8/236:34 amIAD - PDX

2 stops10h 47mAmerican Airlines

Deal found 7/27

$322

Tue 8/268:37 pmPDX - IAD

1 stop7h 55mHawaiian Airlines

Sun 8/316:09 pmIAD - PDX

1 stop8h 50mHawaiian Airlines

Deal found 7/28

$336

Thu 10/305:40 amPDX - IAD

2 stops10h 20mSouthwest

Tue 11/47:40 amIAD - PDX

1 stop8h 50mSouthwest

Deal found 7/27

$342

Fri 8/811:00 amPDX - IAD

1 stop16h 34mFrontier

Fri 8/157:30 amIAD - PDX

1 stop8h 21mFrontier

Deal found 7/26

$345

Mon 8/1811:00 amPDX - IAD

1 stop16h 34mMultiple Airlines

Thu 8/2112:48 pmIAD - PDX

1 stop7h 36mMultiple Airlines

Deal found 7/26

$353

Last-minute flights from Portland to Dulles Intl
Discover last-minute flight deals from Portland to Dulles Intl. Data last updated July 28, 2025 and is based on user searches.

Fri 8/111:00 amPDX - IAD

1 stop16h 34mFrontier

Mon 8/117:30 amIAD - PDX

1 stop8h 21mFrontier

Deal found 7/26

$345

Sat 8/25:35 pmPDX - IAD

1 stop10h 52mAlaska Airlines

Sat 8/167:59 pmIAD - PDX

1 stop16h 46mAlaska Airlines

Deal found 7/27

$536

Sat 8/29:50 pmPDX - IAD

1 stop7h 43mAmerican Airlines

Sat 8/161:18 pmIAD - PDX

2 stops10h 57mAmerican Airlines

Deal found 7/26

$543

Sat 8/25:55 pmPDX - IAD

1 stop9h 55mHawaiian Airlines

Sat 8/165:25 pmIAD - PDX

1 stop8h 49mHawaiian Airlines

Deal found 7/28

$776

Sun 8/36:16 pmPDX - IAD

1 stop9h 18mFrontier

Sun 8/107:30 amIAD - PDX

1 stop12h 56mFrontier

Deal found 7/26

$615

Sun 8/310:55 amPDX - IAD

2 stops10h 15mSouthwest

Tue 8/52:25 pmIAD - PDX

1 stop9h 05mSouthwest

Deal found 7/27

$762

Wed 8/66:45 pmPDX - IAD

1 stop14h 46mMultiple Airlines

Sat 8/99:20 pmIAD - PDX

2 stops28h 26mMultiple Airlines

Deal found 7/27

$511

Wed 8/611:20 pmPDX - IAD

Nonstop4h 58mUnited Airlines

Wed 8/135:10 pmIAD - PDX

Nonstop5h 42mUnited Airlines

Deal found 7/27

$738

Thu 8/712:40 amPDX - IAD

1 stop7h 14mDelta

Fri 8/155:11 pmIAD - PDX

1 stop7h 36mDelta

Deal found 7/25

$477

Thu 8/76:28 pmPDX - IAD

1 stop15h 03mSun Country Air

Sat 8/912:58 pmIAD - PDX

1 stop7h 18mSun Country Air

Deal found 7/28

$485

Sun 8/176:16 pmPDX - IAD

1 stop9h 18mMultiple Airlines

Thu 8/2112:48 pmIAD - PDX

1 stop7h 36mMultiple Airlines

Deal found 7/26

$348

Tue 8/1911:59 pmPDX - IAD

1 stop8h 02mAmerican Airlines

Sat 8/236:34 amIAD - PDX

2 stops10h 47mAmerican Airlines

Deal found 7/27

$322

One-way flights from Portland to Dulles Intl
Search for one-way flight options from Portland to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated July 28, 2025.

Sat 11/16:00 amPDX - IAD

1 stop7h 57mDelta

Deal found 7/28

$159

Fri 8/293:21 pmPDX - IAD

2 stops25h 01mAllegiant Air

Deal found 7/26

$162

Tue 11/45:00 amPDX - IAD

2 stops14h 10mSouthwest

Deal found 7/28

$164

Wed 8/206:35 pmPDX - IAD

1 stop14h 12mSun Country Air

Deal found 7/26

$165

Thu 12/185:48 pmPDX - IAD

1 stop9h 32mFrontier

Deal found 7/27

$166

Sat 12/1311:59 pmPDX - IAD

1 stop7h 46mAmerican Airlines

Deal found 7/27

$167

Sat 11/158:20 amPDX - IAD

Nonstop4h 55mUnited Airlines

Deal found 7/28

$169

Thu 11/275:30 pmPDX - IAD

1 stop9h 25mHawaiian Airlines

Deal found 7/26

$175

Thu 11/136:30 pmPDX - IAD

2 stops20h 51mMultiple Airlines

Deal found 7/26

$181

Sun 10/269:30 pmPDX - IAD

1 stop16h 43mAlaska Airlines

Deal found 7/27

$184

Cheapflights Fare Finder

Use the filters below to find and compare flights from Portland to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandWashington, D.C.

PDX - IAD

PDXIAD

Portland

Wed 9/24

1:24 pm-12:23 am

1 stop7h 59m

Washington, D.C. Dulles Intl

Tue 9/30

7:00 am-4:46 pm

2 stops12h 46m

$312

PortlandWashington, D.C.

PDX - IAD

PDXIAD

Portland

Wed 9/17

8:15 am-4:20 pm

Nonstop5h 05m

Washington, D.C. Dulles Intl

Sat 9/20

5:33 pm-8:03 pm

Nonstop5h 30m

$314

PortlandWashington, D.C.

PDX - IAD

PDXIAD

Portland

Fri 9/12

12:45 am-1:30 pm

1 stop9h 45m

Washington, D.C. Dulles Intl

Sat 9/20

6:15 am-12:35 pm

1 stop9h 20m

$317

PortlandWashington, D.C.

PDX - IAD

PDXIAD

Portland

Tue 8/19

11:59 pm-11:01 am

1 stop8h 02m

Washington, D.C. Dulles Intl

Sat 8/23

6:34 am-2:21 pm

2 stops10h 47m

$322

PortlandWashington, D.C.

PDX - IAD

PDXIAD

Portland

Tue 8/26

8:37 pm-7:32 am

1 stop7h 55m

Washington, D.C. Dulles Intl

Sun 8/31

6:09 pm-11:59 pm

1 stop8h 50m

$336

PortlandWashington, D.C.

PDX - IAD

PDXIAD

Portland

Fri 8/1

11:00 am-6:34 am

1 stop16h 34m

Washington, D.C. Dulles Intl

Mon 8/11

7:30 am-12:51 pm

1 stop8h 21m

$345

PortlandWashington, D.C.

PDX - IAD

PDXIAD

Portland

Mon 8/18

11:00 am-6:34 am

1 stop16h 34m

Washington, D.C. Dulles Intl

Thu 8/21

12:48 pm-5:24 pm

1 stop7h 36m

$353

PortlandWashington, D.C.

PDX - IAD

PDXIAD

Portland

Wed 8/20

6:40 am-10:05 pm

2 stops12h 25m

Washington, D.C. Dulles Intl

Sat 8/23

3:50 pm-10:05 pm

1 stop9h 15m

$368

PortlandWashington, D.C.

PDX - IAD

PDXIAD

Portland

Fri 8/29

3:21 pm-7:22 pm

2 stops25h 01m

$162

PortlandWashington, D.C.

PDX - IAD

PDXIAD

Portland

Thu 10/16

8:04 pm-8:46 pm

2 stops21h 42m

$164

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/26

Showing 1-10 of 17 results

Best time to book a flight from Portland to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Portland 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 Portland to Washington, D.C. Dulles Intl Airport

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

To ensure you get the cheapest price possible for a flight from Portland to Washington, D.C. Dulles Intl Airport, you should look to book at least 89 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 Portland to Washington, D.C. Dulles Intl Airport?

Currently, August is the cheapest month in which you can book a flight from Portland to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Portland to Washington, D.C. Dulles Intl Airport in April 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 PDX to IAD?

A simple way to save on the total cost of your ticket is to fly from Portland to Washington, D.C. Dulles Intl Airport at noon. If you’re flexible enough to do this you can expect to save up to 28% on your trip compared to booking a flight in the morning.

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

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

Weekly flight availability from Portland to Washington, D.C. Dulles Intl Airport

The most flights from PDX to IAD are scheduled on a Monday (1 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (1 on average).

Reviews of airlines servicing Dulles Intl

Read through reviews of airlines operating flights from Portland to Washington, D.C. Dulles Intl Airport, such as Alaska Airlines, Southwest, and Delta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Alaska Airlines

8.0

Very good

10,000 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Southwest

8.0

Very good

4,237 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Delta

8.0

Very good

7,971 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Hawaiian Airlines

7.8

Good

2,604 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

United Airlines

7.4

Good

8,886 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Related info for your journey

What airport do you fly from for flights from Portland to Washington, D.C. Dulles Intl?
For a flight from Portland to Washington, D.C. Dulles Intl, you will be flying from Portland. Portland (PDX) is just 6.0 mi from the center of the city. Portland is the only Portland airport and it handles 1 outbound flight to Washington, D.C. Dulles Intl per day. 5 airlines have flights to Washington, D.C. Dulles Intl from Portland on a regular basis.
What are the cheapest airlines flying from Portland to Washington, D.C. Dulles Intl Airport round-trip?
Cheapflights users have booked flights from Portland to Washington, D.C. Dulles Intl Airport round-trip from $312. Other airlines that can offer you cheap pricing are United Airlines, from $314, and Delta, from $317. Alaska Airlines is currently priced 38% below the average price you’ll pay for this route.
What are the cheapest airlines to fly from Portland to Washington, D.C. Dulles Intl Airport one-way?
The cheapest airlines for a one-way flight from Portland to Washington, D.C. Dulles Intl Airport are Delta ($159), Allegiant Air ($162), and Southwest ($164).
What are the cheapest flights from Portland to Washington, D.C. Dulles Intl Airport?
While on average a flight from Portland to Washington, D.C. Dulles Intl Airport is generally $1,127, our data shows the cheapest flight currently is $168. When looking at the most popular route, (Portland - Washington, D.C. Dulles Intl), you can expect to pay $297 for that flight.
Can I find deals for flights from Portland to Dulles Intl that include hotel bookings?
Yes. In addition to deals on Portland to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Portland to Dulles Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Dulles Intl.
Can I find deals for business class flights from Portland to Dulles Intl?
Yes. Cheapflights offers flight deals from Portland to Dulles Intl 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 Portland to Washington, D.C. Dulles Intl Airport?
Currently, August is the cheapest month in which you can book a flight from Portland to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Portland to Washington, D.C. Dulles Intl Airport in April 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.

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Top 5 airlines flying from Portland to Dulles Intl

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$296	Average$402	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$298	Average$406	FlexibilityNo cancel fee	On-time71%
Southwest	Cheapest$318	Average$456	FlexibilityNo cancel fee	On-time63%
Alaska Airlines	Cheapest$338	Average$550	FlexibilityNo cancel fee	On-time75%
United Airlines	Cheapest$357	Average$531	FlexibilityNo cancel fee	On-time69%

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$159+ Cheap flights from Portland (PDX) to Dulles Intl (IAD)

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 11/1. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Portland to Dulles Intl with Cheapflights

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2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Portland to Washington, D.C. Dulles Intl are usually found in February or April, booked 89 days in advance, depart on a Friday or Wednesday and return on a Tuesday

Cheap flight deals from Portland to Dulles Intl

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from Portland to Dulles Intl

Cheapest flights from Portland to Dulles IntlExplore the most affordable flight options available from Portland to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 28, 2025.

Explore the most affordable flight options available from Portland to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 28, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Portland to Washington, D.C. Dulles Intl Airport that are best for you.

Best time to book a flight from Portland to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Portland with our price prediction graph.

Cheapflights Insights

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

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

Use this chart to determine the optimal time to book a round-trip flight from Portland to Dulles Intl. Price data was last updated on July 25, 2025.

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

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

Find hourly flight availability from Portland to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 28, 2025.

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

Use this chart to determine the cheapest time to fly round-trip from Portland to Dulles Intl. Price data was last updated on July 27, 2025.

Weekly flight availability from Portland to Washington, D.C. Dulles Intl Airport

Explore weekly flight availability from Portland to Dulles Intl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 28, 2025.

Reviews of airlines servicing Dulles Intl

Read through reviews of airlines operating flights from Portland to Washington, D.C. Dulles Intl Airport, such as Alaska Airlines, Southwest, and Delta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Portland to Dulles Intl. 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 from for flights from Portland to Washington, D.C. Dulles Intl?

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

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

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

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

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

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

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

Traveling to a place near Washington, D.C. Dulles Intl Airport?

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Alternative routes for Portland to Dulles Intl

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

Top 5 airlines flying from Portland to Dulles Intl

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Cheapest flights from Portland to Dulles Intl
Explore the most affordable flight options available from Portland to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 28, 2025.