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

Cheapflights users have booked flights from Portland, Maine to Washington, D.C. Dulles Intl Airport round-trip from $229. Other airlines that can offer you cheap pricing are Delta, from $232, and American Airlines, from $300. Users have found that United Airlines is 29% cheaper than the other options available to this destination.

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

For one-way options, check prices for United Airlines. According to our data, you can fly for as low as $123. Users have also found prices from $131 and $149 on Frontier and American Airlines, respectively.

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

On average you can expect to pay $548 for a flight from Portland, Maine to Washington, D.C. Dulles Intl Airport. The cheapest flight overall is $138 while the most popular route, (Portland - Washington, D.C. Dulles Intl) is currently priced at $169.

What are the most reliable airlines from Portland, Maine to Washington, D.C. Dulles Intl Airport?

Consider Republic Airways (92%), Avianca (90%) or Copa Airlines (89%) when booking your flight. These represent the most reliable airlines when flying from Portland, Maine to Washington, D.C. Dulles Intl Airport.

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

Travelers have found that booking a Thursday departure is the best way to save up to 34% on the cost of booking your flights compared to booking on days of the week where this route is of high demand.

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

September is one of the best times of the year to fly to Washington, D.C. Dulles Intl Airport from Portland, Maine. Prices for September average $286 per person but you can even find prices for as low as $179. The most expensive prices can be found in the month of April. Opting for a September flight can save you 16% on your journey compared to booking in April

Most accurate provider : When it comes to deals on Portland, Maine-Washington, D.C. Dulles Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland, Maine-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland, Maine-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Portland, Maine-Washington, D.C. Dulles Intl Airport 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 Portland, Maine-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

Located just 2.9 mi from the city center, Portland is the airport most travelers will use when flying to Washington, D.C. Dulles Intl from Portland. Booking flights from Portland (PWM) to Washington, D.C. Dulles Intl should be relatively easy as there are 4 daily outbound flights to Washington, D.C. Dulles Intl from 1 airline.

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.

$123+ Flights from Portland, ME 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”

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Cheapflights Tip: The best prices from Portland to Washington, D.C. Dulles Intl are usually found in October or March, booked 49 days in advance, depart on a Friday or Thursday and return on a Saturday

Cheap flight deals from Portland to Dulles Intl

Most accurate provider	FlightHub 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$229 (United Airlines)
One-way from	$123 (United Airlines)
Popular in	April
Cheapest in	October
Average price	$394
Good round-trip deal	$333 or less
Good one-way deal	$169 or less

Provider with most accurate pricing for Portland-Washington, D.C. Dulles Intl flight deals.

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Provider most trusted by Cheapflights users for Portland-Washington, D.C. Dulles Intl flights.

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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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High demand for flights, 0% potential price rise

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Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).

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Average for round-trip flights in April 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 April 25, 2025.

Sat 5/36:55 pmPWM - IAD

Nonstop2h 00mUnited Airlines

Mon 5/55:48 pmIAD - PWM

1 stop5h 39mUnited Airlines

Deal found 4/24

$229

Sat 5/316:35 amPWM - IAD

1 stop5h 05mDelta

Tue 6/31:00 pmIAD - PWM

2 stops10h 21mDelta

Deal found 4/24

$232

Sun 5/48:23 pmPWM - IAD

1 stop20h 13mFrontier

Fri 5/231:17 pmIAD - PWM

1 stop26h 45mFrontier

Deal found 4/24

$290

Fri 6/66:01 pmPWM - IAD

1 stop5h 58mAmerican Airlines

Sun 6/89:10 amIAD - PWM

1 stop4h 46mAmerican Airlines

Deal found 4/24

$300

Thu 5/153:17 pmPWM - IAD

2 stops20h 03mMultiple Airlines

Mon 5/195:40 pmIAD - PWM

2 stops19h 25mMultiple Airlines

Deal found 4/25

$427

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 April 25, 2025.

Fri 5/302:05 pmPWM - IAD

Nonstop2h 11mUnited Airlines

Mon 6/23:55 pmIAD - PWM

Nonstop1h 48mUnited Airlines

Deal found 4/25

$229

Sat 5/316:35 amPWM - IAD

1 stop5h 05mDelta

Tue 6/31:00 pmIAD - PWM

2 stops10h 21mDelta

Deal found 4/24

$232

Fri 6/66:01 pmPWM - IAD

1 stop5h 58mAmerican Airlines

Mon 6/165:41 pmIAD - PWM

1 stop5h 03mAmerican Airlines

Deal found 4/25

$300

Thu 5/153:17 pmPWM - IAD

2 stops20h 03mMultiple Airlines

Mon 5/195:40 pmIAD - PWM

2 stops19h 25mMultiple Airlines

Deal found 4/25

$427

Last-minute flights from Portland to Dulles Intl
Discover last-minute flight deals from Portland to Dulles Intl. Data last updated April 25, 2025 and is based on user searches.

Wed 4/307:00 amPWM - IAD

1 stop4h 31mDelta

Sun 5/48:33 pmIAD - PWM

1 stop4h 09mDelta

Deal found 4/25

$312

Thu 5/17:20 amPWM - IAD

2 stops12h 21mAmerican Airlines

Mon 5/55:26 pmIAD - PWM

1 stop5h 40mAmerican Airlines

Deal found 4/23

$513

Sat 5/36:55 pmPWM - IAD

Nonstop2h 00mUnited Airlines

Mon 5/55:48 pmIAD - PWM

1 stop5h 39mUnited Airlines

Deal found 4/24

$229

Sun 5/48:23 pmPWM - IAD

1 stop20h 13mFrontier

Fri 5/231:17 pmIAD - PWM

1 stop26h 45mFrontier

Deal found 4/24

$290

Sun 5/48:07 pmPWM - IAD

3 stops39h 17mMultiple Airlines

Fri 5/2312:49 pmIAD - PWM

2 stops28h 49mMultiple Airlines

Deal found 4/24

$764

Thu 5/153:17 pmPWM - IAD

2 stops20h 03mMultiple Airlines

Mon 5/195:40 pmIAD - PWM

2 stops19h 25mMultiple Airlines

Deal found 4/25

$427

Tue 5/206:35 amPWM - IAD

1 stop5h 10mDelta

Wed 6/258:30 pmIAD - PWM

1 stop4h 16mDelta

Deal found 4/25

$267

Fri 5/302:05 pmPWM - IAD

Nonstop2h 11mUnited Airlines

Mon 6/23:55 pmIAD - PWM

Nonstop1h 48mUnited Airlines

Deal found 4/25

$229

Fri 5/307:35 amPWM - IAD

1 stop5h 47mAmerican Airlines

Mon 6/25:26 pmIAD - PWM

1 stop5h 40mAmerican Airlines

Deal found 4/25

$320

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 April 25, 2025.

Tue 10/147:26 pmPWM - IAD

Nonstop1h 49mUnited Airlines

Deal found 4/24

$123

Sat 5/107:30 pmPWM - IAD

1 stop21h 06mFrontier

Deal found 4/24

$131

Thu 6/126:01 pmPWM - IAD

1 stop5h 58mAmerican Airlines

Deal found 4/25

$149

Thu 5/2912:47 pmPWM - IAD

1 stop23h 06mSun Country Air

Deal found 4/24

$155

Wed 5/281:40 pmPWM - IAD

2 stops9h 14mDelta

Deal found 4/24

$157

Sun 5/253:17 pmPWM - IAD

2 stops20h 03mMultiple Airlines

Deal found 4/24

$219

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.

PWM - IAD

PWMIAD

Portland

Fri 5/30

2:05 pm-4:16 pm

Nonstop2h 11m

Washington, D.C. Dulles Intl

Mon 6/2

3:55 pm-5:43 pm

Nonstop1h 48m

$229

PortlandWashington, D.C.

PWM - IAD

PWMIAD

Portland

Sat 5/31

6:35 am-11:40 am

1 stop5h 05m

Washington, D.C. Dulles Intl

Tue 6/3

1:00 pm-11:21 pm

2 stops10h 21m

$232

PortlandWashington, D.C.

PWM - IAD

PWMIAD

Portland

Fri 6/6

6:01 pm-11:59 pm

1 stop5h 58m

Washington, D.C. Dulles Intl

Mon 6/16

5:41 pm-10:44 pm

1 stop5h 03m

$300

PortlandWashington, D.C.

PWM - IAD

PWMIAD

Portland

Thu 5/15

3:17 pm-11:20 am

2 stops20h 03m

Washington, D.C. Dulles Intl

Mon 5/19

5:40 pm-1:05 pm

2 stops19h 25m

$427

PortlandWashington, D.C.

PWM - IAD

PWMIAD

Portland

Tue 10/14

7:26 pm-9:15 pm

Nonstop1h 49m

$123

PortlandWashington, D.C.

PWM - IAD

PWMIAD

Portland

Sat 5/10

7:30 pm-4:36 pm

1 stop21h 06m

$131

PortlandWashington, D.C.

PWM - IAD

PWMIAD

Portland

Thu 6/12

6:01 pm-11:59 pm

1 stop5h 58m

$149

PortlandWashington, D.C.

PWM - IAD

PWMIAD

Portland

Thu 5/29

12:47 pm-11:53 am

1 stop23h 06m

$155

PortlandWashington, D.C.

PWM - IAD

PWMIAD

Portland

Wed 5/28

1:40 pm-10:54 pm

2 stops9h 14m

$157

PortlandWashington, D.C.

PWM - IAD

PWMIAD

Portland

Sun 5/25

3:17 pm-11:20 am

2 stops20h 03m

$219

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/24

Compare providers for flights from Portland to Dulles Intl

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Portland to Dulles Intl in April.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*2 stars
eDreams	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 Portland, Maine-Washington, D.C. Dulles Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland, Maine-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland, Maine-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Portland, Maine-Washington, D.C. Dulles Intl Airport 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 Portland, Maine-Washington, D.C. Dulles Intl Airport 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 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, Maine to Washington, D.C. Dulles Intl Airport?

The best time to book flights from Portland, Maine to Washington, D.C. Dulles Intl Airport is 49 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, August is the cheapest month in which you can book a flight from Portland, Maine to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Portland, Maine to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $383). 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 PWM to IAD?

A simple way to save on the total cost of your ticket is to fly from Portland, Maine to Washington, D.C. Dulles Intl Airport in the evening. If you’re flexible enough to do this you can expect to save up to 26% on your trip compared to booking a flight at noon.

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

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

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

The most flights from PWM to IAD are scheduled on a Monday (6 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (2 on average).

Rainfall in Dulles Intl by month

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.

Temperature in Dulles Intl by month

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).

Reviews of airlines servicing Dulles Intl

Peruse reviews from past customers who have flown with Delta, United Airlines and American Airlines from Portland to Washington, D.C. to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,920 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta

8.0

Very good

7,920 reviews

Delta

8.0

Very good

7,920 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

United Airlines

7.4

Good

8,685 reviews

Delta

8.0

Very good

7,920 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,920 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Sun Country Air

6.9

Okay

347 reviews

Delta

8.0

Very good

7,920 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Frontier

6.0

Okay

3,284 reviews

Delta

8.0

Very good

7,920 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

What airport do you fly from for flights from Portland to Washington, D.C. Dulles Intl?
Located just 2.9 mi from the city center, Portland is the airport most travelers will use when flying to Washington, D.C. Dulles Intl from Portland. Booking flights from Portland (PWM) to Washington, D.C. Dulles Intl should be relatively easy as there are 4 daily outbound flights to Washington, D.C. Dulles Intl from 1 airline.
What are the cheapest airlines flying from Portland, Maine to Washington, D.C. Dulles Intl Airport round-trip?
Cheapflights users have booked flights from Portland, Maine to Washington, D.C. Dulles Intl Airport round-trip from $229. Other airlines that can offer you cheap pricing are Delta, from $232, and American Airlines, from $300. Users have found that United Airlines is 29% cheaper than the other options available to this destination.
What are the cheapest airlines to fly from Portland, Maine to Washington, D.C. Dulles Intl Airport one-way?
For one-way options, check prices for United Airlines. According to our data, you can fly for as low as $123. Users have also found prices from $131 and $149 on Frontier and American Airlines, respectively.
What are the most reliable airlines from Portland, Maine to Washington, D.C. Dulles Intl Airport?
Consider Republic Airways (92%), Avianca (90%) or Copa Airlines (89%) when booking your flight. These represent the most reliable airlines when flying from Portland, Maine to Washington, D.C. Dulles Intl Airport.
What are the cheapest flights from Portland, Maine to Washington, D.C. Dulles Intl Airport?
On average you can expect to pay $548 for a flight from Portland, Maine to Washington, D.C. Dulles Intl Airport. The cheapest flight overall is $138 while the most popular route, (Portland - Washington, D.C. Dulles Intl) is currently priced at $169.
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, Maine to Washington, D.C. Dulles Intl Airport?
Currently, August is the cheapest month in which you can book a flight from Portland, Maine to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Portland, Maine to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $383). 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 airline flying from Portland to Dulles Intl

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$191	Average$320	FlexibilityNo cancel fee	On-time69%

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$123+ Cheap flights from Portland, ME (PWM) 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 10/14. 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 October or March, booked 49 days in advance, depart on a Friday or Thursday and return on a Saturday

Cheap flight deals from Portland to Dulles Intl

Most accurate provider

Most trusted provider

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 April 25, 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 April 25, 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.

Compare providers for flights from Portland to Dulles Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Portland to Dulles Intl in April.

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, Maine 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 April 18, 2025.

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

What is the cheapest time of day to fly from PWM 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 April 25, 2025.

What is the cheapest day to fly from Portland, Maine 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 March 30, 2025.

Weekly flight availability from Portland, Maine 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 April 25, 2025.

Rainfall in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average rainfall totals by month.

Temperature in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average temperature totals by month.

Reviews of airlines servicing Dulles Intl

Peruse reviews from past customers who have flown with Delta, United Airlines and American Airlines from Portland to Washington, D.C. to help guide your decision. 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, Maine to Washington, D.C. Dulles Intl Airport round-trip?

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

What are the most reliable airlines from Portland, Maine to Washington, D.C. Dulles Intl Airport?

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

Traveling to a place near Portland?

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Alternative routes for Portland to Dulles Intl

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Top airline 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 April 25, 2025.