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

Airlines like United Airlines, Delta, and Southwest fly from Portland to Washington, D.C. Dulles Intl Airport in about 5h 07m. The time it takes to get you to your destination can typically vary by up to 7h 58m. Airlines will cover a distance of 2320 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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 $282. Other airlines that can offer you cheap pricing are American Airlines, from $298, and Southwest, from $318. Delta is currently priced 43% below the average price you’ll pay for this route.

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

The most flights from PDX to IAD are scheduled on a Tuesday (2 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (1 on average).

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 $447, 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 $197 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 February tends to be the cheapest month to fly to Washington, D.C. Dulles Intl Airport from Portland. Users have commonly found prices around $442 for the month, but tickets can be as low as $148. 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.

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

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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

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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 84 days in advance, depart on a Wednesday or Friday and return on a Tuesday

Cheap flight deals from Portland to Dulles Intl

Round-trip from	$287 (United Airlines)
One-way from	$149 (Delta)
Popular in	December
Cheapest in	February
Average price	$480
Good round-trip deal	$381 or less
Good one-way deal	$218 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

Search Deals

Highest demand for flights based on searches. 13% potential increase in price ($78 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 September 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 September 11, 2025.

Sat 10/258:08 amPDX - IAD

Nonstop5h 07mUnited Airlines

Tue 10/284:10 pmIAD - PDX

1 stop11h 16mUnited Airlines

Deal found 9/11

$287

Thu 10/231:30 pmPDX - IAD

1 stop8h 10mDelta

Tue 10/286:05 amIAD - PDX

1 stop7h 24mDelta

Deal found 9/9

$288

Sat 10/111:30 pmPDX - IAD

1 stop8h 10mDelta

Tue 10/147:05 amIAD - PDX

1 stop15h 01mDelta

Deal found 9/11

$289

Wed 10/297:00 amPDX - IAD

2 stops13h 05mSouthwest

Wed 11/54:40 pmIAD - PDX

1 stop8h 50mSouthwest

Deal found 9/9

$290

Wed 10/151:25 pmPDX - IAD

1 stop7h 58mAlaska Airlines

Mon 10/205:42 pmIAD - PDX

1 stop19h 02mAlaska Airlines

Deal found 9/11

$292

Tue 11/45:30 pmPDX - IAD

1 stop9h 53mAlaska Airlines

Wed 11/57:43 amIAD - PDX

2 stops12h 05mAlaska Airlines

Deal found 9/10

$295

Fri 10/32:32 pmPDX - IAD

1 stop6h 51mMultiple Airlines

Sun 10/512:52 pmIAD - PDX

1 stop7h 24mMultiple Airlines

Deal found 9/11

$296

Sun 11/21:30 pmPDX - IAD

1 stop8h 10mDelta

Wed 11/267:15 amIAD - PDX

1 stop15h 04mDelta

Deal found 9/10

$299

Tue 11/41:30 pmPDX - IAD

1 stop8h 10mDelta

Tue 11/257:15 amIAD - PDX

1 stop15h 04mDelta

Deal found 9/10

$300

Wed 10/221:25 pmPDX - IAD

1 stop7h 58mAlaska Airlines

Wed 10/297:43 amIAD - PDX

2 stops12h 05mAlaska Airlines

Deal found 9/11

$301

Wed 10/225:05 amPDX - IAD

2 stops10h 49mAmerican Airlines

Sat 10/255:37 pmIAD - PDX

1 stop8h 52mAmerican Airlines

Deal found 9/10

$302

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 September 11, 2025.

Sat 10/258:08 amPDX - IAD

Nonstop5h 07mUnited Airlines

Tue 10/284:10 pmIAD - PDX

1 stop11h 16mUnited Airlines

Deal found 9/10

$287

Tue 12/212:32 amPDX - IAD

1 stop7h 46mDelta

Wed 12/106:03 amIAD - PDX

1 stop9h 51mDelta

Deal found 9/10

$288

Wed 10/297:00 amPDX - IAD

2 stops13h 05mSouthwest

Wed 11/54:40 pmIAD - PDX

1 stop8h 50mSouthwest

Deal found 9/9

$290

Sun 11/165:48 pmPDX - IAD

1 stop20h 25mAlaska Airlines

Sat 12/67:35 amIAD - PDX

1 stop9h 20mAlaska Airlines

Deal found 9/10

$301

Thu 10/168:08 amPDX - IAD

Nonstop5h 07mUnited Airlines

Tue 10/2112:35 pmIAD - PDX

1 stop7h 46mUnited Airlines

Deal found 9/10

$307

Mon 11/35:48 pmPDX - IAD

1 stop20h 25mAlaska Airlines

Fri 11/77:43 amIAD - PDX

1 stop7h 55mAlaska Airlines

Deal found 9/11

$312

Mon 11/35:30 amPDX - IAD

1 stop8h 35mSouthwest

Thu 11/137:50 pmIAD - PDX

1 stop7h 25mSouthwest

Deal found 9/11

$314

Tue 10/712:40 amPDX - IAD

1 stop7h 46mDelta

Wed 10/157:35 amIAD - PDX

1 stop8h 14mDelta

Deal found 9/11

$319

Mon 11/38:20 amPDX - IAD

Nonstop4h 55mUnited Airlines

Thu 11/135:37 pmIAD - PDX

Nonstop5h 52mUnited Airlines

Deal found 9/11

$317

Thu 10/231:30 pmPDX - IAD

1 stop8h 10mDelta

Tue 10/286:18 amIAD - PDX

1 stop9h 32mDelta

Deal found 9/11

$319

Last-minute flights from Portland to Dulles Intl
Discover last-minute flight deals from Portland to Dulles Intl. Data last updated September 11, 2025 and is based on user searches.

Sat 10/42:30 pmPDX - IAD

1 stop6h 53mHawaiian Airlines

Sat 10/116:25 amIAD - PDX

1 stop9h 00mHawaiian Airlines

Deal found 9/9

$296

Sun 10/512:35 amPDX - IAD

1 stop7h 51mDelta

Wed 10/157:35 amIAD - PDX

1 stop8h 14mDelta

Deal found 9/9

$295

Mon 10/66:00 pmPDX - IAD

1 stop10h 33mAlaska Airlines

Mon 10/205:42 pmIAD - PDX

1 stop19h 02mAlaska Airlines

Deal found 9/11

$292

Tue 10/77:35 pmPDX - IAD

1 stop8h 27mUnited Airlines

Tue 10/145:45 pmIAD - PDX

Nonstop5h 35mUnited Airlines

Deal found 9/9

$287

Thu 10/168:08 amPDX - IAD

Nonstop5h 07mUnited Airlines

Tue 10/284:10 pmIAD - PDX

1 stop11h 16mUnited Airlines

Deal found 9/10

$307

Fri 10/171:25 pmPDX - IAD

1 stop7h 58mAlaska Airlines

Mon 10/205:42 pmIAD - PDX

1 stop19h 02mAlaska Airlines

Deal found 9/10

$306

Sat 10/181:30 pmPDX - IAD

1 stop8h 10mDelta

Tue 10/216:15 amIAD - PDX

1 stop9h 05mDelta

Deal found 9/9

$297

Mon 10/201:25 pmPDX - IAD

1 stop7h 58mHawaiian Airlines

Thu 10/236:25 amIAD - PDX

1 stop10h 25mHawaiian Airlines

Deal found 9/10

$305

Wed 10/2211:59 pmPDX - IAD

1 stop7h 52mAmerican Airlines

Sat 10/259:19 amIAD - PDX

2 stops13h 08mAmerican Airlines

Deal found 9/11

$302

Thu 10/231:30 pmPDX - IAD

1 stop8h 10mDelta

Tue 10/286:05 amIAD - PDX

1 stop7h 24mDelta

Deal found 9/9

$288

Wed 10/297:00 amPDX - IAD

2 stops13h 05mSouthwest

Wed 11/54:40 pmIAD - PDX

1 stop8h 50mSouthwest

Deal found 9/9

$290

Fri 10/3110:15 amPDX - IAD

2 stops9h 10mSouthwest

Wed 11/57:40 amIAD - PDX

1 stop14h 00mSouthwest

Deal found 9/8

$298

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 September 11, 2025.

Mon 10/612:40 amPDX - IAD

1 stop7h 46mDelta

Deal found 9/8

$149

Mon 12/87:28 pmPDX - IAD

2 stops47h 51mFrontier

Deal found 9/9

$154

Fri 1/96:20 amPDX - IAD

1 stop6h 30mSouthwest

Deal found 9/9

$156

Wed 10/151:25 pmPDX - IAD

1 stop7h 58mHawaiian Airlines

Deal found 9/8

$158

Sat 10/118:08 amPDX - IAD

Nonstop5h 07mUnited Airlines

Deal found 9/11

$159

Fri 10/103:53 pmPDX - IAD

2 stops28h 36mMultiple Airlines

Deal found 9/10

$160

Thu 10/236:28 pmPDX - IAD

1 stop13h 52mSun Country Air

Deal found 9/10

$161

Fri 10/173:53 pmPDX - IAD

2 stops28h 36mMultiple Airlines

Deal found 9/10

$162

Tue 1/205:30 pmPDX - IAD

2 stops20h 55mAlaska Airlines

Deal found 9/10

$163

Wed 10/110:35 amPDX - IAD

2 stops10h 48mAlaska Airlines

Deal found 9/11

$164

Mon 12/2912:59 amPDX - IAD

1 stop13h 06mAmerican Airlines

Deal found 9/11

$165

Fri 9/269:17 amPDX - IAD

1 stop30h 35mMultiple Airlines

Deal found 9/9

$167

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

Sat 10/25

8:08 am-4:15 pm

Nonstop5h 07m

Washington, D.C. Dulles Intl

Tue 10/28

4:10 pm-12:26 am

1 stop11h 16m

$287

PortlandWashington, D.C.

PDX - IAD

PDXIAD

Portland

Tue 12/2

12:32 am-11:18 am

1 stop7h 46m

Washington, D.C. Dulles Intl

Wed 12/10

6:03 am-12:54 pm

1 stop9h 51m

$288

PortlandWashington, D.C.

PDX - IAD

PDXIAD

Portland

Wed 10/29

7:00 am-11:05 pm

2 stops13h 05m

Washington, D.C. Dulles Intl

Wed 11/5

4:40 pm-10:30 pm

1 stop8h 50m

$290

PortlandWashington, D.C.

PDX - IAD

PDXIAD

Portland

Sun 11/16

5:48 pm-5:13 pm

1 stop20h 25m

Washington, D.C. Dulles Intl

Sat 12/6

7:35 am-1:55 pm

1 stop9h 20m

$301

PortlandWashington, D.C.

PDX - IAD

PDXIAD

Portland

Thu 10/16

8:08 am-4:15 pm

Nonstop5h 07m

Washington, D.C. Dulles Intl

Tue 10/21

12:35 pm-5:21 pm

1 stop7h 46m

$307

PortlandWashington, D.C.

PDX - IAD

PDXIAD

Portland

Mon 11/3

5:48 pm-5:13 pm

1 stop20h 25m

Washington, D.C. Dulles Intl

Fri 11/7

7:43 am-12:38 pm

1 stop7h 55m

$312

PortlandWashington, D.C.

PDX - IAD

PDXIAD

Portland

Mon 11/3

5:30 am-5:05 pm

1 stop8h 35m

Washington, D.C. Dulles Intl

Thu 11/13

7:50 pm-12:15 am

1 stop7h 25m

$314

PortlandWashington, D.C.

PDX - IAD

PDXIAD

Portland

Mon 11/3

8:20 am-4:15 pm

Nonstop4h 55m

Washington, D.C. Dulles Intl

Thu 11/13

5:37 pm-8:29 pm

Nonstop5h 52m

$317

PortlandWashington, D.C.

PDX - IAD

PDXIAD

Portland

Tue 10/7

12:40 am-11:26 am

1 stop7h 46m

Washington, D.C. Dulles Intl

Wed 10/15

7:35 am-12:49 pm

1 stop8h 14m

$319

PortlandWashington, D.C.

PDX - IAD

PDXIAD

Portland

Thu 10/23

1:30 pm-12:40 am

1 stop8h 10m

Washington, D.C. Dulles Intl

Tue 10/28

6:18 am-12:50 pm

1 stop9h 32m

$319

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 22 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

Prices

Airlines

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 83 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 $292). 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 27% 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.

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

6.0

Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

Alaska Airlines

8.0

Very good

10,000 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

6.0

Good

Hannah,Aug 2025

SFO - SAN

Southwest

8.0

Very good

4,248 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

6.0

Good

Hannah,Aug 2025

SFO - SAN

Delta

8.0

Very good

7,960 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

6.0

Good

Hannah,Aug 2025

SFO - SAN

United Airlines

7.4

Good

8,937 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

6.0

Good

Hannah,Aug 2025

SFO - SAN

American Airlines

7.2

Good

10,000 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

6.0

Good

Hannah,Aug 2025

SFO - SAN

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.
How long is the flight from Portland to Washington, D.C. Dulles Intl Airport?
Airlines like United Airlines, Delta, and Southwest fly from Portland to Washington, D.C. Dulles Intl Airport in about 5h 07m. The time it takes to get you to your destination can typically vary by up to 7h 58m. Airlines will cover a distance of 2320 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.
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 $282. Other airlines that can offer you cheap pricing are American Airlines, from $298, and Southwest, from $318. Delta is currently priced 43% below the average price you’ll pay for this route.
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 $447, 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 $197 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 $292). 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$282	Average$373	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$298	Average$356	FlexibilityNo cancel fee	On-time71%
Southwest	Cheapest$318	Average$436	FlexibilityNo cancel fee	On-time63%
Alaska Airlines	Cheapest$324	Average$536	FlexibilityNo cancel fee	On-time75%
United Airlines	Cheapest$337	Average$517	FlexibilityNo cancel fee	On-time69%

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$149+ 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 10/6. 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

1. Tell us where you want to go

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 84 days in advance, depart on a Wednesday or Friday 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 September 11, 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 September 11, 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?

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?

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

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

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?

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

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

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?

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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 September 11, 2025.