What are the cheapest airlines flying 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 $227. Other airlines that can offer you cheap pricing are Delta, from $244, and American Airlines, from $265. United Airlines is currently priced 34% below the average price you’ll pay for this route.

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

The cheapest airline one-way is United Airlines, with whom users have recently found tickets for as low as $150. However, be on the lookout for offers from Delta and American Airlines, as they are both options that can get you from Washington, D.C. Dulles Intl Airport to Portland, Maine for a low price.

In terms of precipitation, rainfall in Portland, Maine ranges from 2.9 - 4.5 inches per month. November is typically the wettest month, when rainfall can reach 4.5 in. August is typically the driest time to visit Portland, Maine when rainfall is around 2.9 in.

If weather is an important factor for your trip to Portland, Maine, 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 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

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

On average you can expect to pay $346 for a flight from Washington, D.C. Dulles Intl Airport to Portland, Maine. The cheapest flight overall is $179 while the most popular route, (Washington, D.C. Dulles Intl - Portland) is currently priced at $157.

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

Consider Copa Airlines (89%), CommutAir (82%) or GoJet (80%) when booking your flight. These represent the most reliable airlines when flying from Washington, D.C. Dulles Intl Airport to Portland, Maine.

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

Leaving on a Monday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 23% on the overall cost on flights from Washington, D.C. Dulles Intl Airport to Portland, Maine.

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

January can be a great time to fly to Portland, Maine from Washington, D.C. Dulles Intl Airport with a flight ticket averaging about $311. Cheapflights users have found deals in the month of January for as cheap as $186. The most expensive prices can be found in the month of June.

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 4 flights from Washington, D.C. Dulles Intl to Portland per day from 1 airline.

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.

$150+ Flights from Washington, D.C. Dulles Intl Airport to Portland, ME

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Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Portland are usually found in December or May, booked 69 days in advance, depart on a Tuesday or Saturday and return on a Friday

Cheap flight deals from Dulles Intl to Portland

Round-trip from	$227 (United Airlines)
One-way from	$150 (United Airlines)
Popular in	August
Cheapest in	December
Average price	$357
Good round-trip deal	$289 or less
Good one-way deal	$234 or less

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. 7% potential increase in price ($26 potential increase over avg. RT price).

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Cheapest flight prices on average. 2% potential price decrease ($8 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 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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Find flight deals from Dulles Intl to Portland

Cheapest flights from Dulles Intl to Portland
Explore the most affordable flight options available from Dulles Intl to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

Tue 8/196:20 amIAD - PWM

1 stop5h 12mUnited Airlines

Wed 8/207:26 pmPWM - IAD

Nonstop1h 49mUnited Airlines

Deal found 7/1

$227

Wed 7/168:33 pmIAD - PWM

1 stop4h 24mDelta

Thu 7/246:30 amPWM - IAD

1 stop5h 32mDelta

Deal found 7/3

$234

Mon 8/187:44 amIAD - PWM

1 stop7h 18mAmerican Airlines

Thu 8/212:48 pmPWM - IAD

1 stop5h 01mAmerican Airlines

Deal found 7/1

$265

Best flights from Dulles Intl to Portland
Discover carefully curated flight deals from Dulles Intl to Portland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 3, 2025.

Tue 8/196:20 amIAD - PWM

1 stop5h 12mUnited Airlines

Wed 8/207:26 pmPWM - IAD

Nonstop1h 49mUnited Airlines

Deal found 7/1

$227

Thu 7/248:31 pmIAD - PWM

1 stop4h 26mDelta

Wed 7/306:30 amPWM - IAD

1 stop5h 32mDelta

Deal found 7/1

$244

Mon 8/187:44 amIAD - PWM

1 stop7h 18mAmerican Airlines

Thu 8/212:48 pmPWM - IAD

1 stop5h 01mAmerican Airlines

Deal found 7/1

$265

Last-minute flights from Dulles Intl to Portland
Discover last-minute flight deals from Dulles Intl to Portland. Data last updated July 3, 2025 and is based on user searches.

Tue 7/85:39 pmIAD - PWM

1 stop5h 06mAmerican Airlines

Mon 7/146:01 pmPWM - IAD

1 stop5h 57mAmerican Airlines

Deal found 7/2

$282

Wed 7/98:35 amIAD - PWM

1 stop4h 44mUnited Airlines

Wed 7/165:35 amPWM - IAD

Nonstop1h 50mUnited Airlines

Deal found 7/1

$229

Thu 7/108:31 pmIAD - PWM

1 stop4h 26mDelta

Tue 7/156:30 amPWM - IAD

1 stop5h 32mDelta

Deal found 7/1

$239

Wed 7/168:33 pmIAD - PWM

1 stop4h 24mDelta

Wed 7/306:30 amPWM - IAD

1 stop5h 32mDelta

Deal found 7/3

$234

Mon 8/187:44 amIAD - PWM

1 stop7h 18mAmerican Airlines

Thu 8/212:48 pmPWM - IAD

1 stop5h 01mAmerican Airlines

Deal found 7/1

$265

Tue 8/196:20 amIAD - PWM

1 stop5h 12mUnited Airlines

Wed 8/207:26 pmPWM - IAD

Nonstop1h 49mUnited Airlines

Deal found 7/1

$227

One-way flights from Dulles Intl to Portland
Search for one-way flight options from Dulles Intl to Portland. Find affordable one-way fares based on user searches. Data last updated July 3, 2025.

Sat 8/210:14 pmIAD - PWM

Nonstop1h 45mUnited Airlines

Deal found 7/2

$150

Fri 8/158:23 pmIAD - PWM

1 stop4h 25mDelta

Deal found 7/3

$151

Wed 8/2710:25 amIAD - PWM

2 stops11h 18mAmerican Airlines

Deal found 7/3

$190

Thu 8/711:58 amIAD - PWM

2 stops23h 53mMultiple Airlines

Deal found 7/3

$214

Fri 7/111:36 pmIAD - PWM

1 stop28h 37mFrontier

Deal found 7/1

$225

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

Washington, D.C.Portland

IAD - PWM

IADPWM

Washington, D.C. Dulles Intl

Tue 8/19

6:20 am-11:32 am

1 stop5h 12m

Portland

Thu 8/21

7:26 pm-9:15 pm

Nonstop1h 49m

$227

Washington, D.C.Portland

IAD - PWM

IADPWM

Washington, D.C. Dulles Intl

Wed 7/16

8:33 pm-12:57 am

1 stop4h 24m

Portland

Thu 7/24

6:30 am-12:02 pm

1 stop5h 32m

$234

Washington, D.C.Portland

IAD - PWM

IADPWM

Washington, D.C. Dulles Intl

Mon 8/18

7:44 am-3:02 pm

1 stop7h 18m

Portland

Thu 8/21

2:48 pm-7:49 pm

1 stop5h 01m

$265

Washington, D.C.Portland

IAD - PWM

IADPWM

Washington, D.C. Dulles Intl

Sat 8/2

10:14 pm-11:59 pm

Nonstop1h 45m

$150

Washington, D.C.Portland

IAD - PWM

IADPWM

Washington, D.C. Dulles Intl

Fri 8/15

8:23 pm-12:48 am

1 stop4h 25m

$151

Washington, D.C.Portland

IAD - PWM

IADPWM

Washington, D.C. Dulles Intl

Fri 9/12

7:21 pm-11:26 am

2 stops16h 05m

$190

Washington, D.C.Portland

IAD - PWM

IADPWM

Washington, D.C. Dulles Intl

Thu 8/7

11:58 am-11:51 am

2 stops23h 53m

$214

Washington, D.C.Portland

IAD - PWM

IADPWM

Washington, D.C. Dulles Intl

Fri 7/11

1:36 pm-6:13 pm

1 stop28h 37m

$225

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

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

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 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 29 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 $296). Flying from Washington, D.C. Dulles Intl Airport to Portland, Maine in July is currently the most expensive (average of $394). 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 in the evening could potentially save you up to 28% 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 Monday evenings when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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

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

Reviews of airlines servicing Portland

Peruse reviews from past customers who have flown with Delta, United Airlines, and American 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.

Delta

8.0

Very good

7,982 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very good

7,982 reviews

Delta

8.0

Very good

7,982 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

United Airlines

7.4

Good

8,861 reviews

Delta

8.0

Very good

7,982 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,982 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Frontier

5.9

Fair

3,286 reviews

Delta

8.0

Very good

7,982 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 4 flights from Washington, D.C. Dulles Intl to Portland per day from 1 airline.
What are the cheapest airlines flying 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 $227. Other airlines that can offer you cheap pricing are Delta, from $244, and American Airlines, from $265. United Airlines is currently priced 34% below the average price you’ll pay for this route.
What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Portland, Maine one-way?
The cheapest airline one-way is United Airlines, with whom users have recently found tickets for as low as $150. However, be on the lookout for offers from Delta and American Airlines, as they are both options that can get you from Washington, D.C. Dulles Intl Airport to Portland, Maine for a low price.
What are the most reliable airlines from Washington, D.C. Dulles Intl Airport to Portland, Maine?
Consider Copa Airlines (89%), CommutAir (82%) or GoJet (80%) 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 $346 for a flight from Washington, D.C. Dulles Intl Airport to Portland, Maine. The cheapest flight overall is $179 while the most popular route, (Washington, D.C. Dulles Intl - Portland) is currently priced at $157.
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 $296). Flying from Washington, D.C. Dulles Intl Airport to Portland, Maine in July is currently the most expensive (average of $394). 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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Brunswick

North Conway

Auburn

Conway

Lewiston

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Top airline flying from Dulles Intl to Portland

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$221	Average$357	FlexibilityNo cancel fee	On-time69%

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$150+ Cheap flights from Dulles Intl (IAD) to Portland, ME (PWM)

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 8/2. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Dulles Intl to Portland 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 Washington, D.C. Dulles Intl to Portland are usually found in December or May, booked 69 days in advance, depart on a Tuesday or Saturday and return on a Friday

Cheap flight deals from Dulles Intl to Portland

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from Dulles Intl to Portland

Cheapest flights from Dulles Intl to PortlandExplore the most affordable flight options available from Dulles Intl to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

Explore the most affordable flight options available from Dulles Intl to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

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.

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.

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?

Use this chart to determine the optimal time to book a round-trip flight from Dulles Intl to Portland. Price data was last updated on June 27, 2025.

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

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

Find hourly flight availability from Dulles Intl to Portland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 3, 2025.

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

Use this chart to determine the cheapest time to fly round-trip from Dulles Intl to Portland. Price data was last updated on June 29, 2025.

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

Explore weekly flight availability from Dulles Intl to Portland. 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 3, 2025.

Reviews of airlines servicing Portland

Related info for your journey

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

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

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

What are the most reliable airlines 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?

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

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

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

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

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

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Alternative routes for Dulles Intl to Portland

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Top airline flying from Dulles Intl to Portland

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Cheapest flights from Dulles Intl to Portland
Explore the most affordable flight options available from Dulles Intl to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.