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Cheap flights from Kalispell to Boston from $241

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Kalispell to Boston departing on 6/2. 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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Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
2:42 pm - 2:31 pm
FCA
-
PWM
21h 49m2 stops
United Airlines Logo
2:31 pm - 9:59 pm
PWM
-
FCA
33h 28m2 stops
$568United Airlines
Wed, Jan 21 - Sat, Jan 24
United Airlines Logo
2:42 pm - 2:39 pm
FCA
-
PWM
21h 57m2 stops
United Airlines Logo
2:31 pm - 9:59 pm
PWM
-
FCA
33h 28m2 stops
$588United Airlines
Wed, Jan 21 - Sat, Jan 24

United Airlines flights from Kalispell to Portland, Maine

Our best United Airlines deals on Kalispell to Portland, Maine flight tickets
United Airlines
Jan 21
FCA2:42 pmKalispell Glacier Park
21h 49m
2 stops
PWM2:31 pmPortland
Jan 24
PWM2:31 pmPortland
33h 28m
2 stops
FCA9:59 pmKalispell Glacier Park
$568
Find similar
United Airlines
Jan 21
FCA2:42 pmKalispell Glacier Park
21h 57m
2 stops
PWM2:39 pmPortland
Jan 24
PWM2:31 pmPortland
33h 28m
2 stops
FCA9:59 pmKalispell Glacier Park
$588
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Kalispell 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 18, 2025.
Use the filters below to find and compare flights from Kalispell to Portland, Maine that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

KalispellPortland

FCA - PWM

FCAPWM

Kalispell Glacier Park

Wed 1/21

2:42 pm-2:31 pm

2 stops21h 49m

Portland

Sat 1/24

2:31 pm-9:59 pm

2 stops33h 28m

$568

KalispellPortland

FCA - PWM

FCAPWM

Kalispell Glacier Park

Wed 1/21

2:42 pm-2:39 pm

2 stops21h 57m

Portland

Sat 1/24

2:31 pm-9:59 pm

2 stops33h 28m

$588

KalispellPortland

FCA - PWM

FCAPWM

Kalispell Glacier Park

Tue 6/2

12:35 pm-9:27 pm

1 stop6h 52m

$241

KalispellPortland

FCA - PWM

FCAPWM

Kalispell Glacier Park

Tue 6/2

4:09 pm-8:19 am

2 stops14h 10m

$246

KalispellPortland

FCA - PWM

FCAPWM

Kalispell Glacier Park

Wed 6/3

12:35 pm-9:27 pm

1 stop6h 52m

$291

KalispellPortland

FCA - PWM

FCAPWM

Kalispell Glacier Park

Wed 6/3

1:35 pm-1:54 pm

2 stops22h 19m

$344

KalispellPortland

FCA - PWM

FCAPWM

Kalispell Glacier Park

Tue 6/2

10:47 am-9:27 pm

3 stops32h 40m

$443

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 Kalispell 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 Kalispell is on a Thursday. momondo users have found tickets for Thursday departures for as low as $821. 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 Kalispell because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,470.

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

At noon is the cheapest time of day to fly from Kalispell to Portland, Maine when you can find flight prices for as low as $825. Flying to Portland, Maine at noon is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the morning because they tend to be around $941. Of course, these prices can vary depending on the time of year and what airport you fly to.

When to book flights from Kalispell to Portland, Maine

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

Cheap Kalispell to Portland, Maine (FCA to PWM) flight deals and tips

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

Fastest flight time

6h 26m

Direct flights

None
The fastest flight from Kalispell to Portland, Maine takes 6h 26m
There are no direct flights from Kalispell to Portland, Maine. There are no popular flight routes from Kalispell to Portland, Maine.
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  • How far is Kalispell Glacier Park to Portland by plane?

    The distance between Kalispell Glacier Park and Portland is about 2109.3 mi. Flights usually cover this in 6h 26m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Kalispell Glacier Park Airport to Portland Airport?

    Prices for flights from Kalispell Glacier Park Airport to Portland Airport are updated daily.

  • How old do you have to be to fly from Kalispell Glacier Park Airport to Portland Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Kalispell Glacier Park Airport to Portland Airport.

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

    The travel and health documents required for your trip to Portland Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Portland Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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 Kalispell to Portland?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Kalispell to Portland. momondo saves you time and could save you money on your trip.

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

Yes. All flights to Portland from Kalispell on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Kalispell to Portland.

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

Yes. momondo can track prices for Kalispell to Portland flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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