What is the cheapest airline that flies from Washington, D.C. Dulles Intl to Portland?

Delta and United Airlines are the most popular carriers operating from Washington, D.C. Dulles Intl to Portland

What airlines fly to Portland, Maine?

United Airlines, JetBlue and Delta are the top three most popular airlines that fly to Portland, Maine from Washington, D.C. Dulles Intl Airport according to our data. United Airlines is the first choice among our users, with 96% of people opting to fly with this airline when traveling to Portland, Maine. Keep in mind that there are 4 different airlines that fly to Portland, Maine on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to Portland Airport?

Prices for flights from Washington, D.C. Dulles Intl Airport to Portland Airport are refreshed on a daily basis.

How many operators does momondo search for flights from Washington, D.C. Dulles Intl Airport to Portland Airport?

As of May 2026, there are 2 operators available to choose from for flights from Washington, D.C. Dulles Intl Airport to Portland Airport.

How old do you have to be to fly from Washington, D.C. Dulles Intl Airport to Portland Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington, D.C. Dulles Intl Airport to Portland Airport.

What documentation or ID do you need to fly to Portland Airport?

The required travel and health documents for your Portland Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Portland Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$169 Cheap Flights from Washington, D.C. Dulles Intl Airport to Portland, Maine in 2026

Q: What is the typical price of a round-trip flight between Washington, D.C. Dulles Intl Airport and Portland, Maine?

Prices are currently low for flights on this route. Typical prices usually range from $509 to $307. The lowest price recently found on this route was $260.

Q: How many flights depart from Washington, D.C. Dulles Intl Airport to Portland, Maine on average per day?

The number of flights available between Washington, D.C. Dulles Intl Airport and Portland, Maine is 5 per day as of May 2026. The most frequent departure time is 5:00PM, with 54% of daily flights leaving in the afternoon.

Q: How many flights depart from Washington, D.C. Dulles Intl Airport to Portland, Maine on average per week?

As of May 2026, 40 flights take off from Washington, D.C. Dulles Intl Airport and land in Portland, Maine each week. The most common flight departure day for this route is Mon, with 15% of weekly flights taking off on this day.

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Find the cheapest flights from Washington, D.C. Dulles Intl Airport to Portland

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

10:10 pm - 11:51 pm

IAD

PWM

1h 41mnonstop

5:15 am - 7:00 am

PWM

IAD

1h 45mnonstop

$260United Airlines

Thu, Jul 9 - Sun, Jul 12

10:10 pm - 11:51 pm

IAD

PWM

1h 41mnonstop

5:15 am - 7:00 am

PWM

IAD

1h 45mnonstop

$261United Airlines

Fri, Jun 26 - Tue, Jun 30

10:10 pm - 11:51 pm

IAD

PWM

1h 41mnonstop

5:15 am - 7:00 am

PWM

IAD

1h 45mnonstop

$262United Airlines

Thu, Jun 25 - Thu, Jul 2

10:10 pm - 11:51 pm

IAD

PWM

1h 41mnonstop

5:15 am - 7:00 am

PWM

IAD

1h 45mnonstop

$264United Airlines

Sat, Jun 13 - Sat, Jun 20

7:59 pm - 12:59 am

IAD

PWM

5h 00m

1 stop

6:00 am - 11:49 am

PWM

IAD

5h 49m

1 stop

$269Delta

Sat, Aug 1 - Sat, Aug 8

10:10 pm - 11:51 pm

IAD

PWM

1h 41mnonstop

6:00 am - 11:28 am

PWM

IAD

5h 28m

1 stop

$270United Airlines

Tue, Jun 23 - Tue, Jun 30

7:19 pm - 12:59 am

IAD

PWM

5h 40m

1 stop

6:30 am - 4:38 pm

PWM

IAD

10h 08m

2 stops

$274Delta

Fri, Aug 7 - Tue, Aug 11

6:10 am - 4:01 pm

IAD

PWM

9h 51m

2 stops

1:59 pm - 11:14 pm

PWM

IAD

9h 15m

2 stops

$279Delta

Sat, Sep 26 - Tue, Sep 29

10:10 pm - 11:51 pm

IAD

PWM

1h 41mnonstop

5:15 am - 7:00 am

PWM

IAD

1h 45mnonstop

$280United Airlines

Fri, Jul 24 - Mon, Jul 27

10:10 pm - 11:51 pm

IAD

PWM

1h 41mnonstop

5:15 am - 7:00 am

PWM

IAD

1h 45mnonstop

$283United Airlines

Wed, Jul 22 - Mon, Jul 27

American Airlines flights from Washington, D.C. Dulles Intl Airport to Portland, Maine

Our best American Airlines deals on Washington, D.C. Dulles Intl Airport to Portland, Maine flight tickets

American Airlines

Jun 10

IAD9:20 amWashington, D.C. Dulles Intl

7h 46m

1 stop

PWM5:06 pmPortland

Jun 15

PWM5:58 pmPortland

6h 15m

1 stop

IAD12:13 amWashington, D.C. Dulles Intl

$299

American Airlines

Jun 10

IAD9:20 amWashington, D.C. Dulles Intl

7h 46m

1 stop

PWM5:06 pmPortland

Jun 13

PWM5:58 pmPortland

6h 15m

1 stop

IAD12:13 amWashington, D.C. Dulles Intl

$303

American Airlines

Aug 26

IAD6:10 amWashington, D.C. Dulles Intl

6h 30m

1 stop

PWM12:40 pmPortland

Aug 30

PWM7:24 pmPortland

4h 25m

1 stop

IAD11:49 pmWashington, D.C. Dulles Intl

$314

United Airlines flights from Washington, D.C. Dulles Intl Airport to Portland, Maine

Our best United Airlines deals on Washington, D.C. Dulles Intl Airport to Portland, Maine flight tickets

United Airlines

Jul 9

IAD10:10 pmWashington, D.C. Dulles Intl

1h 41m

PWM11:51 pmPortland

Jul 12

PWM5:15 amPortland

1h 45m

IAD7:00 amWashington, D.C. Dulles Intl

$260

United Airlines

Jun 26

IAD10:10 pmWashington, D.C. Dulles Intl

1h 41m

PWM11:51 pmPortland

Jun 30

PWM5:15 amPortland

1h 45m

IAD7:00 amWashington, D.C. Dulles Intl

$261

United Airlines

Jun 25

IAD10:10 pmWashington, D.C. Dulles Intl

1h 41m

PWM11:51 pmPortland

Jul 1

PWM5:15 amPortland

1h 45m

IAD7:00 amWashington, D.C. Dulles Intl

$262

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

Washington, D.C.Portland

IAD - PWM

IADPWM

Washington, D.C. Dulles Intl

Thu 7/9

10:10 pm-11:51 pm

Nonstop1h 41m

Portland

Sun 7/12

5:15 am-7:00 am

Nonstop1h 45m

$260

Washington, D.C.Portland

IAD - PWM

IADPWM

Washington, D.C. Dulles Intl

Fri 6/26

10:10 pm-11:51 pm

Nonstop1h 41m

Portland

Tue 6/30

5:15 am-7:00 am

Nonstop1h 45m

$261

Washington, D.C.Portland

IAD - PWM

IADPWM

Washington, D.C. Dulles Intl

Thu 6/25

10:10 pm-11:51 pm

Nonstop1h 41m

Portland

Thu 7/2

5:15 am-7:00 am

Nonstop1h 45m

$262

Washington, D.C.Portland

IAD - PWM

IADPWM

Washington, D.C. Dulles Intl

Sat 6/13

10:10 pm-11:51 pm

Nonstop1h 41m

Portland

Sat 6/20

5:15 am-7:00 am

Nonstop1h 45m

$264

Washington, D.C.Portland

IAD - PWM

IADPWM

Washington, D.C. Dulles Intl

Sat 8/1

7:59 pm-12:59 am

1 stop5h 00m

Portland

Sat 8/8

6:00 am-11:49 am

1 stop5h 49m

$269

Washington, D.C.Portland

IAD - PWM

IADPWM

Washington, D.C. Dulles Intl

Tue 6/23

10:10 pm-11:51 pm

Nonstop1h 41m

Portland

Tue 6/30

6:00 am-11:28 am

1 stop5h 28m

$270

Washington, D.C.Portland

IAD - PWM

IADPWM

Washington, D.C. Dulles Intl

Fri 8/7

7:19 pm-12:59 am

1 stop5h 40m

Portland

Tue 8/11

6:30 am-4:38 pm

2 stops10h 08m

$274

Washington, D.C.Portland

IAD - PWM

IADPWM

Washington, D.C. Dulles Intl

Sat 9/26

6:10 am-4:01 pm

2 stops9h 51m

Portland

Tue 9/29

1:59 pm-11:14 pm

2 stops9h 15m

$279

Washington, D.C.Portland

IAD - PWM

IADPWM

Washington, D.C. Dulles Intl

Fri 7/24

10:10 pm-11:51 pm

Nonstop1h 41m

Portland

Mon 7/27

5:15 am-7:00 am

Nonstop1h 45m

$280

Washington, D.C.Portland

IAD - PWM

IADPWM

Washington, D.C. Dulles Intl

Wed 7/22

10:10 pm-11:51 pm

Nonstop1h 41m

Portland

Mon 7/27

5:15 am-7:00 am

Nonstop1h 45m

$283

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Washington, D.C. Dulles Intl Airport to Portland, Maine

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the typical price of a round-trip flight between Washington, D.C. Dulles Intl Airport and Portland, Maine?

What is the cheapest month to fly to Portland, Maine?

The cheapest month to fly to Portland, Maine from Washington, D.C. Dulles Intl Airport is in November. Flight prices, which tend to average around $254, are often lower during this time because this is during the off-season. If you aren’t able to travel to Portland, Maine during the month of November, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $286.

What is the cheapest day to depart on your flight to Portland, Maine?

On average, the least expensive day to fly to Portland, Maine from Washington, D.C. Dulles Intl Airport is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $323. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Thursday is the most expensive day to depart from Washington, D.C. Dulles Intl Airport because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $398.

What is the cheapest time of day to depart on your flight to Portland, Maine?

In the evening is the cheapest time of day to fly from Washington, D.C. Dulles Intl Airport to Portland, Maine when you can find flight prices for as low as $307. Flying to Portland, Maine in the evening is an ideal time because this is during off-peak travel hours. Try not to purchase tickets at noon because they tend to be around $405. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Washington, D.C. Dulles Intl to Portland flight route?

Fly from Washington, D.C. Dulles Intl to Portland for the best Washington, D.C. Dulles Intl - Portland flight prices

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

You are more likely to see cheaper flights to Portland, Maine from Washington, D.C. Dulles Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Portland, Maine for around $368 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portland, Maine from Washington, D.C. Dulles Intl Airport for as low as $269 on momondo.

What cabin class options are available on Washington, D.C. Dulles Intl Airport to Portland, Maine flights?

There are 4 cabin classes available to choose from on Washington, D.C. Dulles Intl Airport to Portland, Maine flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Washington, D.C. Dulles Intl Airport to Portland, Maine flights?

You could potentially save up to 37% on your flight if you consider stops on a Washington, D.C. Dulles Intl Airport to Portland, Maine flight.

How have Washington, D.C. Dulles Intl Airport to Portland, Maine flight prices changed over time?

As of May 2026, prices for Washington, D.C. Dulles Intl Airport to Portland, Maine flights are approximately 73% more expensive when compared to flights at the same time last year.

When to book flights from Washington, D.C. Dulles Intl Airport to Portland, Maine

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Dulles Intl Airport to Portland, Maine according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Washington, D.C. Dulles Intl Airport to Portland, Maine (IAD to PWM) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Dulles Intl Airport to Portland, Maine

Best Price Found	$196
Fastest flight time	1h 41m
Direct flights	Every day
Airports in Portland, Maine	1 airport

The best one-way flight to Portland, Maine from Washington, D.C. Dulles Intl Airport in the past 72 hours is $196. The best round-trip flight deal from Washington, D.C. Dulles Intl Airport to Portland, Maine found on momondo in the last 72 hours is $280.

The fastest flight from Washington, D.C. Dulles Intl Airport to Portland, Maine takes 1h 41m

Direct flights go from Washington, D.C. Dulles Intl Airport to Portland, Maine every day.

There is 1 airport in Portland, Maine. From Washington, D.C. Dulles Intl Airport there are direct flights to Portland (PWM).

Search flight deals

Frequently asked questions about flying from Washington, D.C. Dulles Intl Airport to Portland, Maine

How far is Washington, D.C. Dulles Intl to Portland by plane?
Washington, D.C. Dulles Intl and Portland are 494.7 mi apart from one another. In terms of flight time, this usually takes a little over 1h 41m.
When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to Portland Airport?
Prices for flights from Washington, D.C. Dulles Intl Airport to Portland Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Washington, D.C. Dulles Intl Airport to Portland Airport?
As of May 2026, there are 2 operators available to choose from for flights from Washington, D.C. Dulles Intl Airport to Portland Airport.
How old do you have to be to fly from Washington, D.C. Dulles Intl Airport to Portland Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington, D.C. Dulles Intl Airport to Portland Airport.
What documentation or ID do you need to fly to Portland Airport?
The required travel and health documents for your Portland Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Portland Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Washington, D.C. Dulles Intl Airport to Portland, Maine?
momondo data reveals that the most frequently booked plane model on the route from Washington, D.C. Dulles Intl Airport to Portland, Maine is Boeing 737 MAX 8, representing 21.48% of all bookings. The subsequent popular models are Embraer 175 (Enhanced Winglets) at 18.50%, Boeing 737-800 Passenger/BBJ2 (winglets) at 11.79%, and Canadair (Bombardier) Regional Jet 900 at 11.31%.
What is the most popular airline from Washington, D.C. Dulles Intl Airport to Portland, Maine?
Based on momondo bookings for flights between Washington, D.C. Dulles Intl Airport and Portland, Maine, the leading airline is United Airlines, making up 97% of the total bookings. Other popular airlines include Delta with 3%.

Best airlines flying from Washington, D.C. Dulles Intl Airport to Portland, Maine

Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport to Portland, Maine with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $113	Free Cancellation	Rating 7.9 8,423 reviews		Search Delta flights
United Airlines	PriceFrom $211	Free Cancellation	Rating 7.4 9,751 reviews		Search United Airlines flights

United Airlines Flights From Washington, D.C. Dulles Intl Airport to Portland, Maine
United Airlines flight deals from Washington, D.C. Dulles Intl Airport to Portland, Maine start from $211 round-trip. Over the 26 United Airlines flights for this route in a normal week, average airfare is usually $369 round-trip - but some users have found much cheaper deals with momondo.

North Conway

Boothbay Harbor

Jackson

Lewiston

Conway

Freeport

Brunswick

Bartlett

Gorham

Auburn

Windham

Intervale

Bath

Oxford

Georgetown

Falmouth

Tamworth

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Portland?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Portland from Washington, D.C..

Can I find flights from Washington, D.C. to Portland with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Washington, D.C. to Portland flights to just show those with flexible booking policies.

How can momondo help me find flights from Washington, D.C. to Portland?

momondo helps you find the best flight between Washington, D.C. and Portland by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Washington, D.C. to Portland right now. Can momondo alert me if prices change?

Price alerts on flights to Portland from Washington, D.C. are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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Rockland Knox County Regional Airport

Cheap flights from Washington, D.C. Dulles Intl Airport to Portland from $169

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American Airlines flights from Washington, D.C. Dulles Intl Airport to Portland, Maine

Our best American Airlines deals on Washington, D.C. Dulles Intl Airport to Portland, Maine flight tickets

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Our best United Airlines deals on Washington, D.C. Dulles Intl Airport to Portland, Maine flight tickets

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How to get the cheapest flight ticket from Washington, D.C. Dulles Intl Airport to Portland, Maine

What is the typical price of a round-trip flight between Washington, D.C. Dulles Intl Airport and Portland, Maine?

What is the cheapest month to fly to Portland, Maine?

What is the cheapest day to depart on your flight to Portland, Maine?

What is the cheapest time of day to depart on your flight to Portland, Maine?

What is the cheapest Washington, D.C. Dulles Intl to Portland flight route?

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

What cabin class options are available on Washington, D.C. Dulles Intl Airport to Portland, Maine flights?

Can stopping save me money on Washington, D.C. Dulles Intl Airport to Portland, Maine flights?

How have Washington, D.C. Dulles Intl Airport to Portland, Maine flight prices changed over time?

What is the cheapest airline that flies from Washington, D.C. Dulles Intl to Portland?

What airlines fly to Portland, Maine?

How many flights depart from Washington, D.C. Dulles Intl Airport to Portland, Maine on average per day?

How many flights depart from Washington, D.C. Dulles Intl Airport to Portland, Maine on average per week?

When to book flights from Washington, D.C. Dulles Intl Airport to Portland, Maine

Cheap Washington, D.C. Dulles Intl Airport to Portland, Maine (IAD to PWM) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Dulles Intl Airport to Portland, Maine

Best Price Found

Fastest flight time

Direct flights

Airports in Portland, Maine

Frequently asked questions about flying from Washington, D.C. Dulles Intl Airport to Portland, Maine

Best airlines flying from Washington, D.C. Dulles Intl Airport to Portland, Maine

Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport to Portland, Maine with momondo

United Airlines Flights From Washington, D.C. Dulles Intl Airport to Portland, Maine

Traveling to a place near Portland?

Why use momondo?

An easier way to manage your Portland, Maine trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Daily price changes in your inbox - only with Price Alerts.

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List of cabin classes available on flights landing in Portland. Availability may vary depending on flight origin and airline.

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