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Cheap flights from Washington, D.C. Dulles Intl Airport to Portland from $128

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Dulles Intl Airport to Portland departing on 12/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Washington, D.C. Dulles Intl Airport to Portland

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
8:20 am - 10:04 amIAD-PWM
1h 44mnonstop
United Airlines Logo
5:30 am - 7:28 amPWM-IAD
1h 58mnonstop
$220United Airlines
Find Deal
Wed, Nov 19 - Sun, Nov 23
Delta Logo
7:49 pm - 11:54 pmIAD-PWM
4h 05m1 stop
Delta Logo
4:53 pm - 11:03 pmPWM-IAD
6h 10m1 stop
$224Delta
Find Deal
Fri, Nov 14 - Mon, Nov 17
United Airlines Logo
8:20 am - 10:04 amIAD-PWM
1h 44mnonstop
United Airlines Logo
5:30 am - 7:28 amPWM-IAD
1h 58mnonstop
$229United Airlines
Find Deal
Fri, Nov 7 - Mon, Nov 10
United Airlines Logo
12:35 pm - 2:19 pmIAD-PWM
1h 44mnonstop
United Airlines Logo
2:13 pm - 4:11 pmPWM-IAD
1h 58mnonstop
$230United Airlines
Find Deal
Tue, Dec 2 - Sat, Dec 6
United Airlines Logo
8:45 am - 1:36 pmIAD-PWM
4h 51m1 stop
United Airlines Logo
9:54 am - 11:50 amPWM-IAD
1h 56mnonstop
$233United Airlines
Find Deal
Fri, Nov 14 - Sun, Nov 16
Delta Logo
6:00 am - 12:13 pmIAD-PWM
6h 13m1 stop
Delta Logo
4:53 pm - 11:08 pmPWM-IAD
6h 15m1 stop
$234Delta
Find Deal
Sat, Dec 6 - Fri, Dec 12
United Airlines Logo
5:20 pm - 11:11 pmIAD-PWM
5h 51m1 stop
United Airlines Logo
11:17 am - 4:14 pmPWM-IAD
4h 57m1 stop
$238United Airlines
Find Deal
Fri, Mar 13 - Sat, Mar 21
United Airlines Logo
8:20 am - 10:04 amIAD-PWM
1h 44mnonstop
United Airlines Logo
3:20 pm - 8:57 pmPWM-IAD
5h 37m1 stop
$239United Airlines
Find Deal
Fri, Nov 7 - Mon, Nov 10
United Airlines Logo
10:13 pm - 11:59 pmIAD-PWM
1h 46mnonstop
United Airlines Logo
2:31 pm - 4:30 pmPWM-IAD
1h 59mnonstop
$245United Airlines
Find Deal
Wed, Dec 31 - Thu, Jan 8
Multiple Airlines Logo
8:36 pm - 9:06 amIAD-PWM
12h 30m1 stop
Multiple Airlines Logo
11:21 am - 7:51 pmPWM-IAD
32h 30m2 stops
$278Multiple Airlines
Find Deal
Sun, Nov 9 - Wed, Nov 12

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
Nov 19
IAD8:20 amWashington, D.C. Dulles Intl
1h 44m
PWM10:04 amPortland
Nov 23
PWM5:30 amPortland
1h 58m
IAD7:28 amWashington, D.C. Dulles Intl
$220
Find similar
United Airlines
Nov 7
IAD8:20 amWashington, D.C. Dulles Intl
1h 44m
PWM10:04 amPortland
Nov 10
PWM5:30 amPortland
1h 58m
IAD7:28 amWashington, D.C. Dulles Intl
$229
Find similar
United Airlines
Dec 2
IAD12:35 pmWashington, D.C. Dulles Intl
1h 44m
PWM2:19 pmPortland
Dec 6
PWM2:13 pmPortland
1h 58m
IAD4:11 pmWashington, D.C. Dulles Intl
$230
Find similar

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

Our best Delta deals on Washington, D.C. Dulles Intl Airport to Portland, Maine flight tickets
Delta
Nov 14
IAD7:49 pmWashington, D.C. Dulles Intl
4h 05m
1 stop
PWM11:54 pmPortland
Nov 17
PWM4:53 pmPortland
6h 10m
1 stop
IAD11:03 pmWashington, D.C. Dulles Intl
$224
Find similar
Delta
Dec 6
IAD6:00 amWashington, D.C. Dulles Intl
6h 13m
1 stop
PWM12:13 pmPortland
Dec 12
PWM4:53 pmPortland
6h 15m
1 stop
IAD11:08 pmWashington, D.C. Dulles Intl
$234
Find similar
Delta
Nov 15
IAD11:05 amWashington, D.C. Dulles Intl
9h 46m
2 stops
PWM8:51 pmPortland
Nov 18
PWM6:35 amPortland
4h 56m
1 stop
IAD11:31 amWashington, D.C. Dulles Intl
$249
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Dulles Intl Airport to Portland, Maine that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated October 28, 2025.
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

Washington, D.C.Portland

IAD - PWM

IADPWM

Washington, D.C. Dulles Intl

Wed 11/19

8:20 am-10:04 am

Nonstop1h 44m

Portland

Sun 11/23

5:30 am-7:28 am

Nonstop1h 58m

$220

Washington, D.C.Portland

IAD - PWM

IADPWM

Washington, D.C. Dulles Intl

Fri 11/14

7:49 pm-11:54 pm

1 stop4h 05m

Portland

Mon 11/17

4:53 pm-11:03 pm

1 stop6h 10m

$224

Washington, D.C.Portland

IAD - PWM

IADPWM

Washington, D.C. Dulles Intl

Fri 11/7

8:20 am-10:04 am

Nonstop1h 44m

Portland

Mon 11/10

5:30 am-7:28 am

Nonstop1h 58m

$229

Washington, D.C.Portland

IAD - PWM

IADPWM

Washington, D.C. Dulles Intl

Tue 12/2

12:35 pm-2:19 pm

Nonstop1h 44m

Portland

Sat 12/6

2:13 pm-4:11 pm

Nonstop1h 58m

$230

Washington, D.C.Portland

IAD - PWM

IADPWM

Washington, D.C. Dulles Intl

Fri 11/14

8:45 am-1:36 pm

1 stop4h 51m

Portland

Sun 11/16

9:54 am-11:50 am

Nonstop1h 56m

$233

Washington, D.C.Portland

IAD - PWM

IADPWM

Washington, D.C. Dulles Intl

Sat 12/6

6:00 am-12:13 pm

1 stop6h 13m

Portland

Fri 12/12

4:53 pm-11:08 pm

1 stop6h 15m

$234

Washington, D.C.Portland

IAD - PWM

IADPWM

Washington, D.C. Dulles Intl

Fri 3/13

5:20 pm-11:11 pm

1 stop5h 51m

Portland

Sat 3/21

11:17 am-4:14 pm

1 stop4h 57m

$238

Washington, D.C.Portland

IAD - PWM

IADPWM

Washington, D.C. Dulles Intl

Fri 11/7

8:20 am-10:04 am

Nonstop1h 44m

Portland

Mon 11/10

3:20 pm-8:57 pm

1 stop5h 37m

$239

Washington, D.C.Portland

IAD - PWM

IADPWM

Washington, D.C. Dulles Intl

Wed 12/31

10:13 pm-11:59 pm

Nonstop1h 46m

Portland

Thu 1/8

2:31 pm-4:30 pm

Nonstop1h 59m

$245

Washington, D.C.Portland

IAD - PWM

IADPWM

Washington, D.C. Dulles Intl

Sun 11/9

8:36 pm-9:06 am

1 stop12h 30m

Portland

Wed 11/12

11:21 am-7:51 pm

2 stops32h 30m

$278

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Portland from

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

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 $249, 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 May is also cheap. Prices for this month can be found on momondo for an average of $293.

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 Saturday. momondo users have found tickets for Saturday departures for as low as $285. 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 $370.

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 $295. Flying to Portland, Maine in the evening is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the afternoon because they tend to be around $380. 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 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 $343 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 $230 on momondo.

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

There are 4 cabin classes available to choose from on Washington, D.C. Dulles Intl to Portland 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 35% 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 October 2025, prices for Washington, D.C. Dulles Intl Airport to Portland, Maine flights are approximately 0% 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

$211

Fastest flight time

1h 39m

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 $211. 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 $277.
The fastest flight from Washington, D.C. Dulles Intl Airport to Portland, Maine takes 1h 39m
Direct flights go from Washington, D.C. Dulles Intl Airport to Portland, Maine every day.
There is 1 airport near Portland, Maine: Portland (PWM)
Search flight deals

  • 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 44m.

  • 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?

  • 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?

  • What is the most popular airline 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
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $208Free CancellationRating
7.4
9,001 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 $208 round-trip. Over the 16 United Airlines flights for this route in a normal week, average airfare is usually $358 round-trip - but some users have found much cheaper deals with momondo.

Traveling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
North Conway
Boothbay Harbor
Jackson
Conway
Freeport
Lewiston
Brunswick
Bartlett
Auburn
Gorham
Intervale
Windham
Oxford
Bath
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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