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Cheap flights from Missoula to Boston from $439

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Missoula to Boston departing on 1/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Missoula to Boston

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
6:00 am - 6:54 pm
MSO
-
PWM
10h 54m2 stops
United Airlines Logo
6:00 am - 4:05 pm
PWM
-
MSO
12h 05m2 stops
$439United Airlines
Sat, Jan 24 - Wed, Jan 28
American Airlines Logo
1:21 pm - 12:05 pm
MSO
-
PWM
20h 44m2 stops
American Airlines Logo
7:00 am - 8:45 pm
PWM
-
MSO
15h 45m2 stops
$601American Airlines
Tue, Jan 6 - Fri, Jan 9
United Airlines Logo
6:00 am - 11:27 pm
MSO
-
PWM
15h 27m3 stops
United Airlines Logo
9:40 am - 9:51 pm
PWM
-
MSO
14h 11m2 stops
$795United Airlines
Tue, Jan 6 - Fri, Jan 9
United Airlines Logo
6:00 am - 11:27 pm
MSO
-
PWM
15h 27m3 stops
United Airlines Logo
9:40 am - 9:51 pm
PWM
-
MSO
14h 11m3 stops
$1,008United Airlines
Tue, Jan 6 - Fri, Jan 9

United Airlines flights from Missoula to Portland, Maine

Our best United Airlines deals on Missoula to Portland, Maine flight tickets
United Airlines
Jan 24
MSO6:00 amMissoula Johnson-Bell Field
10h 54m
2 stops
PWM6:54 pmPortland
Jan 28
PWM6:00 amPortland
12h 05m
2 stops
MSO4:05 pmMissoula Johnson-Bell Field
$439
Find similar
United Airlines
Jan 6
MSO6:00 amMissoula Johnson-Bell Field
15h 27m
3 stops
PWM11:27 pmPortland
Jan 9
PWM9:40 amPortland
14h 11m
2 stops
MSO9:51 pmMissoula Johnson-Bell Field
$795
Find similar
United Airlines
Jan 6
MSO6:00 amMissoula Johnson-Bell Field
15h 27m
3 stops
PWM11:27 pmPortland
Jan 9
PWM9:40 amPortland
14h 11m
3 stops
MSO9:51 pmMissoula Johnson-Bell Field
$1,008
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Missoula 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 December 15, 2025.
Use the filters below to find and compare flights from Missoula to Portland, Maine that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

MissoulaPortland

MSO - PWM

MSOPWM

Missoula Johnson-Bell Field

Sat 1/24

6:00 am-6:54 pm

2 stops10h 54m

Portland

Wed 1/28

6:00 am-4:05 pm

2 stops12h 05m

$439

MissoulaPortland

MSO - PWM

MSOPWM

Missoula Johnson-Bell Field

Tue 1/6

1:21 pm-12:05 pm

2 stops20h 44m

Portland

Fri 1/9

7:00 am-8:45 pm

2 stops15h 45m

$601

MissoulaPortland

MSO - PWM

MSOPWM

Missoula Johnson-Bell Field

Tue 1/6

6:00 am-11:27 pm

3 stops15h 27m

Portland

Fri 1/9

9:40 am-9:51 pm

2 stops14h 11m

$795

MissoulaPortland

MSO - PWM

MSOPWM

Missoula Johnson-Bell Field

Tue 1/6

6:00 am-11:27 pm

3 stops15h 27m

Portland

Fri 1/9

9:40 am-9:51 pm

3 stops14h 11m

$1,008

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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How to get the cheapest flight ticket from Missoula 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 day to depart on your flight to Portland, Maine?

On average, the least expensive day to fly to Portland, Maine from Missoula is on a Saturday. momondo users have found tickets for Saturday departures for as low as $557. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Tuesday is the most expensive day to depart from Missoula because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $756.

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

In the afternoon is the cheapest time of day to fly from Missoula to Portland, Maine when you can find flight prices for as low as $557. Flying to Portland, Maine in the afternoon 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 $685. Of course, these prices can vary depending on the time of year and what airport you fly to.

Can stopping save me money on Missoula to Portland, Maine flights?

You could potentially save up to 35% on your flight if you consider stops on a Missoula to Portland, Maine flight.

When to book flights from Missoula to Portland, Maine

Are you open to changing your travel dates? Check out the ideal times to fly from Missoula to Portland, Maine according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Missoula to Portland, Maine (MSO to PWM) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Missoula to Portland, Maine

Fastest flight time

10h 54m

Direct flights

None
The fastest flight from Missoula to Portland, Maine takes 10h 54m
There are no direct flights from Missoula to Portland, Maine. There are no popular flight routes from Missoula to Portland, Maine.
Search flight deals

  • How far is Missoula Johnson-Bell Field to Portland by plane?

    A flight from Missoula Johnson-Bell Field to Portland will travel around 2109.3 mi. In terms of flight time, this usually takes a little over 10h 54m.

  • When did momondo last update prices for flights from Missoula Johnson-Bell Field Airport to Portland Airport?

    Prices for flights from Missoula Johnson-Bell Field Airport to Portland Airport refresh daily.

  • How many operators does momondo search for flights from Missoula Johnson-Bell Field Airport to Portland Airport?

  • How old do you have to be to fly from Missoula Johnson-Bell Field 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 Missoula Johnson-Bell Field Airport to Portland Airport.

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

    The necessary travel and health documents for your Portland Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Missoula to Portland, Maine?

Best airlines flying from Missoula to Portland, Maine

Compare and see reviews for airlines that fly from Missoula to Portland, Maine with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $314Free CancellationRating
7.2
11,052 reviews
Search American Airlines flights
United AirlinesPriceFrom $483Free CancellationRating
7.4
9,092 reviews
Search United Airlines flights

Traveling to a place near Boston?

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

Why use momondo?

Why should I use momondo to find a flight deal from Missoula to Portland?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Missoula to Portland for you.

Can I find flights from Missoula to Portland with flexible booking policies on momondo?

momondo does allow users to show only those flights to Portland from Missoula which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Missoula to Portland?

momondo provides multiple filters to help you find the best flight to Portland from Missoula. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Price alerts on flights to Portland from Missoula 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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