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Portland

$131+ Cheap flights from Dulles Intl (IAD) to Portland, ME (PWM)

IAD — PWM
Nov 13 — Nov 201
Fri 11/13
Fri 11/20
1 adult, Economy
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Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Portland are usually found in January or November, booked 67 days in advance, depart on a Tuesday or Wednesday and return on a Thursday

Cheap flight deals from Dulles Intl to Portland

Cheapest flights from Dulles Intl to Portland

Mon 11/910:12 pm -
Nonstop1h 47m
Mon 11/165:35 am -
1 stop6h 09m
Deal found 10/11$303
Tue 11/106:00 am -
2 stops10h 38m
Sat 11/146:27 am -
2 stops9h 51m
Deal found 10/9$307
Fri 11/610:13 pm -
Nonstop1h 46m
Sun 11/85:50 am -
1 stop5h 39m
Deal found 10/12$308
Sat 11/215:15 pm -
Nonstop1h 47m
Tue 11/245:50 am -
1 stop5h 54m
Deal found 10/10$309
Fri 10/3010:13 pm -
Nonstop1h 46m
Sun 11/15:30 am -
Nonstop2h 00m
Deal found 10/9$310
Mon 11/235:50 pm -
1 stop5h 31m
Fri 11/279:46 am -
Nonstop2h 02m
Deal found 10/10$311
Fri 10/3010:13 pm -
Nonstop1h 46m
Wed 11/45:30 am -
Nonstop2h 00m
Deal found 10/13$313
Thu 10/295:15 pm -
Nonstop1h 47m
Wed 11/45:30 am -
Nonstop2h 00m
Deal found 10/9$314
Fri 10/306:32 pm -
1 stop5h 38m
Fri 11/64:47 pm -
1 stop6h 29m
Deal found 10/9$319
Sat 11/145:50 pm -
1 stop5h 31m
Mon 11/167:35 pm -
Nonstop1h 55m
Deal found 10/13$321

Find flight deals from Dulles Intl to Portland

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$302
(Delta)

One-way from

$131
(Kiwi.com)

Popular in

February

Cheapest in

January

Average price

$378

Good round-trip deal

$372 or less

Good one-way deal

$268 or less
Provider with most accurate pricing for Washington, D.C. Dulles Intl-Portland flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Portland flights.
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From Washington, D.C. Dulles Intl to Portland
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One-way flight from Washington, D.C. Dulles Intl to Portland
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Highest demand for flights based on searches. 5% potential increase in price ($21 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($15 potential savings vs. average RT price).
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Average for round-trip flights in October 2026
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Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to Portland.
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Price to beat on a one-way flight from Washington, D.C. Dulles Intl to Portland.
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Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Portland

IAD Washington, D.C. Dulles Intl - PWM Portland

IADPWM

Washington, D.C. Dulles Intl

Fri 11/20

9:35 pm-9:08 am

1 stop11h 33m

Portland

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$189

Washington, D.C.Portland

IAD Washington, D.C. Dulles Intl - PWM Portland

IADPWM

Washington, D.C. Dulles Intl

Tue 11/3

5:15 pm-7:02 pm

Nonstop1h 47m

Portland

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$204

Washington, D.C.Portland

IAD Washington, D.C. Dulles Intl - PWM Portland

IADPWM

Washington, D.C. Dulles Intl

Mon 11/23

5:50 pm-11:21 pm

1 stop5h 31m

Portland

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$214

Washington, D.C.Portland

IAD Washington, D.C. Dulles Intl - PWM Portland

IADPWM

Washington, D.C. Dulles Intl

Mon 11/23

10:47 pm-9:08 am

2 stops34h 21m

Portland

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$224

Washington, D.C.Portland

IAD Washington, D.C. Dulles Intl - PWM Portland

IADPWM

Washington, D.C. Dulles Intl

Sat 11/21

12:40 pm-2:27 pm

Nonstop1h 47m

Portland

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$227

Washington, D.C.Portland

IAD Washington, D.C. Dulles Intl - PWM Portland

IADPWM

Washington, D.C. Dulles Intl

Sun 11/15

12:40 pm-2:27 pm

Nonstop1h 47m

Portland

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$227
Quickest round-trip

Washington, D.C.Portland

IAD Washington, D.C. Dulles Intl - PWM Portland

IADPWM

Washington, D.C. Dulles Intl

Tue 11/10

8:28 am-10:07 am

Nonstop1h 39m

Portland

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$227

Washington, D.C.Portland

IAD Washington, D.C. Dulles Intl - PWM Portland

IADPWM

Washington, D.C. Dulles Intl

Wed 11/11

8:28 am-10:07 am

Nonstop1h 39m

Portland

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$227

Washington, D.C.Portland

IAD Washington, D.C. Dulles Intl - PWM Portland

IADPWM

Washington, D.C. Dulles Intl

Thu 10/29

5:15 pm-7:02 pm

Nonstop1h 47m

Portland

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$234

Washington, D.C.Portland

IAD Washington, D.C. Dulles Intl - PWM Portland

IADPWM

Washington, D.C. Dulles Intl

Mon 12/14

5:25 pm-7:12 pm

Nonstop1h 47m

Portland

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$237

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/9

Showing 1-10 of 19 resultsSorted by cheapest first
1
2

Compare providers for flights from Dulles Intl to Portland

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Dulles Intl to Portland in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust 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 Washington, D.C. Dulles Intl Airport-Portland, Maine flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Dulles Intl Airport-Portland, Maine flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Portland, Maine flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Portland, Maine flights, Cheapflights users trust FlightHub the most. FlightHub 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 Washington, D.C. Dulles Intl Airport-Portland, Maine 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 Dulles Intl to Portland

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

Cheapflights Insights

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

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

The best time to book flights from Washington, D.C. Dulles Intl Airport to Portland, Maine is 66 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 Washington, D.C. Dulles Intl Airport to Portland, Maine?

Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Portland, Maine (average of $286). Flying from Washington, D.C. Dulles Intl Airport to Portland, Maine in February is currently the most expensive (average of $532). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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

One of the essential ways to save on airfare from Washington, D.C. Dulles Intl Airport to Portland, Maine is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight at noon could potentially save you up to 22% on airfare.

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

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

How much does it cost to fly round-trip from Washington, D.C. Dulles Intl Airport to Portland, Maine?

Airfare is below average for this route at the moment.

Washington, D.C. Dulles Intl Airport to Portland, Maine flights typically cost between $329 and $467 in February.
The cheapest round-trip price found within the last 5 days was $302 on Delta (Feb 26-Mar 2).

Reviews of airlines servicing Portland

Peruse reviews from past customers who have flown with United Airlines from Washington, D.C. Dulles Intl Airport to Portland to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
10,351 reviews

Comfort

7.3

Entertainment

7.1

Overall

7.4

Crew

8.1

Food

6.7

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.
United Airlines
7.4
Good
10,351 reviews
United Airlines
7.4
Good
10,351 reviews

Comfort

7.3

Entertainment

7.1

Overall

7.4

Crew

8.1

Food

6.7

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.

Related info for your journey

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

    If you book a flight to Portland from Washington, D.C. Dulles Intl, you will be flying to Portland, which is the city’s only airport. Portland (PWM) is located 2.9 mi from the center of Portland. There are 6 flights from Washington, D.C. Dulles Intl to Portland per day from 1 airline.

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

    Departing from Washington, D.C. Dulles Intl Airport to Portland, Maine will take you 5h 43m. Washington, D.C. Dulles Intl Airport and Portland, Maine are separated by a distance of 492 mi.

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

    Cheapflights users have booked flights from Washington, D.C. Dulles Intl Airport to Portland, Maine round-trip from $217. United Airlines is currently priced 43% below the average price you’ll pay for this route.

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

    Consider GoJet (100%), United Airlines (84%) or Avianca (82%) when booking your flight. These represent the most reliable airlines when flying from Washington, D.C. Dulles Intl Airport to Portland, Maine.

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

    On average you can expect to pay $428 for a flight from Washington, D.C. Dulles Intl Airport to Portland, Maine. The cheapest flight overall is $226 while the most popular route, (Washington, D.C. Dulles Intl - Portland) is currently priced at $277.

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

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Portland, Maine (average of $286). Flying from Washington, D.C. Dulles Intl Airport to Portland, Maine in February is currently the most expensive (average of $532). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
Lewiston
North Conway
Brunswick
Conway

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Top airline flying from Dulles Intl to Portland

AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$217Average$380FlexibilityNo cancel feeOn-time69%

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