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Cheap flights from Boston to Kalispell from $337

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to Kalispell departing on 10/22. 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 Boston to Kalispell

Cheap round-trip flights

American Airlines Logo
6:57 am - 12:43 pmBOS-FCA
7h 46m1 stop
American Airlines Logo
1:14 pm - 11:54 pmFCA-BOS
8h 40m1 stop
$337American Airlines
Find Deal
Wed, Oct 22 - Tue, Oct 28
United Airlines Logo
6:00 am - 11:35 amBOS-FCA
7h 35m1 stop
United Airlines Logo
10:50 am - 12:50 amFCA-BOS
12h 00m2 stops
$342United Airlines
Find Deal
Wed, Oct 15 - Wed, Oct 22
Delta Logo
8:10 am - 2:29 pmBOS-FCA
8h 19m1 stop
Delta Logo
6:06 pm - 6:30 amFCA-BOS
10h 24m1 stop
$368Delta
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Thu, Oct 30 - Sat, Nov 22
Delta Logo
12:55 pm - 11:07 pmBOS-FCA
12h 12m2 stops
Delta Logo
6:12 pm - 6:13 amFCA-BOS
10h 01m1 stop
$373Delta
Find Deal
Fri, Jan 9 - Fri, Jan 16
Delta Logo
5:34 am - 2:29 pmBOS-FCA
10h 55m2 stops
Delta Logo
5:20 am - 8:10 pmFCA-BOS
12h 50m2 stops
$378Delta
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Wed, Oct 22 - Tue, Oct 28
United Airlines Logo
6:00 am - 1:25 pmBOS-FCA
9h 25m2 stops
United Airlines Logo
12:41 pm - 11:59 pmFCA-BOS
9h 18m2 stops
$380United Airlines
Find Deal
Wed, Oct 15 - Wed, Oct 22
Alaska Airlines Logo
5:55 pm - 10:18 amBOS-FCA
18h 23m1 stop
Alaska Airlines Logo
4:00 pm - 4:46 pmFCA-BOS
22h 46m1 stop
$386Alaska Airlines
Find Deal
Fri, Jan 9 - Fri, Jan 16
Alaska Airlines Logo
4:50 pm - 1:13 pmBOS-FCA
22h 23m1 stop
Alaska Airlines Logo
11:05 am - 11:59 pmFCA-BOS
10h 54m1 stop
$428Alaska Airlines
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Sun, Feb 22 - Thu, Feb 26
American Airlines Logo
7:00 am - 12:38 pmBOS-FCA
7h 38m1 stop
American Airlines Logo
5:23 pm - 4:49 pmFCA-BOS
21h 26m1 stop
$454American Airlines
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Wed, Oct 1 - Sun, Oct 5
Hawaiian Airlines Logo
7:00 am - 3:23 pmBOS-FCA
10h 23m1 stop
Hawaiian Airlines Logo
4:00 pm - 7:16 amFCA-BOS
13h 16m1 stop
$537Hawaiian Airlines
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Sun, Feb 22 - Thu, Feb 26

United Airlines flights from Boston to Kalispell

Our best United Airlines deals on Boston to Kalispell flight tickets
United Airlines
Oct 15
BOS6:00 amBoston Logan Intl
7h 35m
1 stop
FCA11:35 amKalispell Glacier Park
Oct 22
FCA10:50 amKalispell Glacier Park
12h 00m
2 stops
BOS12:50 amBoston Logan Intl
$342
Find similar
United Airlines
Oct 15
BOS6:00 amBoston Logan Intl
9h 25m
2 stops
FCA1:25 pmKalispell Glacier Park
Oct 22
FCA12:41 pmKalispell Glacier Park
9h 18m
2 stops
BOS11:59 pmBoston Logan Intl
$380
Find similar
United Airlines
Jan 9
BOS10:30 amBoston Logan Intl
14h 15m
2 stops
FCA10:45 pmKalispell Glacier Park
Jan 16
FCA2:42 pmKalispell Glacier Park
18h 10m
2 stops
BOS10:52 amBoston Logan Intl
$501
Find similar

Delta flights from Boston to Kalispell

Our best Delta deals on Boston to Kalispell flight tickets
Delta
Oct 30
BOS8:10 amBoston Logan Intl
8h 19m
1 stop
FCA2:29 pmKalispell Glacier Park
Nov 22
FCA6:06 pmKalispell Glacier Park
10h 24m
1 stop
BOS6:30 amBoston Logan Intl
$368
Find similar
Delta
Jan 9
BOS12:55 pmBoston Logan Intl
12h 12m
2 stops
FCA11:07 pmKalispell Glacier Park
Jan 16
FCA6:12 pmKalispell Glacier Park
10h 01m
1 stop
BOS6:13 amBoston Logan Intl
$373
Find similar
Delta
Oct 22
BOS5:34 amBoston Logan Intl
10h 55m
2 stops
FCA2:29 pmKalispell Glacier Park
Oct 28
FCA5:20 amKalispell Glacier Park
12h 50m
2 stops
BOS8:10 pmBoston Logan Intl
$378
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Boston to Kalispell 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 September 16, 2025.
Use the filters below to find and compare flights from Boston to Kalispell that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BostonKalispell

BOS - FCA

BOSFCA

Boston Logan Intl

Wed 10/22

6:57 am-12:43 pm

1 stop7h 46m

Kalispell Glacier Park

Tue 10/28

1:14 pm-11:54 pm

1 stop8h 40m

$337

BostonKalispell

BOS - FCA

BOSFCA

Boston Logan Intl

Wed 10/15

6:00 am-11:35 am

1 stop7h 35m

Kalispell Glacier Park

Wed 10/22

10:50 am-12:50 am

2 stops12h 00m

$342

BostonKalispell

BOS - FCA

BOSFCA

Boston Logan Intl

Thu 10/30

8:10 am-2:29 pm

1 stop8h 19m

Kalispell Glacier Park

Sat 11/22

6:06 pm-6:30 am

1 stop10h 24m

$368

BostonKalispell

BOS - FCA

BOSFCA

Boston Logan Intl

Fri 1/9

12:55 pm-11:07 pm

2 stops12h 12m

Kalispell Glacier Park

Fri 1/16

6:12 pm-6:13 am

1 stop10h 01m

$373

BostonKalispell

BOS - FCA

BOSFCA

Boston Logan Intl

Wed 10/22

5:34 am-2:29 pm

2 stops10h 55m

Kalispell Glacier Park

Tue 10/28

5:20 am-8:10 pm

2 stops12h 50m

$378

BostonKalispell

BOS - FCA

BOSFCA

Boston Logan Intl

Wed 10/15

6:00 am-1:25 pm

2 stops9h 25m

Kalispell Glacier Park

Wed 10/22

12:41 pm-11:59 pm

2 stops9h 18m

$380

BostonKalispell

BOS - FCA

BOSFCA

Boston Logan Intl

Fri 1/9

5:55 pm-10:18 am

1 stop18h 23m

Kalispell Glacier Park

Fri 1/16

4:00 pm-4:46 pm

1 stop22h 46m

$386

BostonKalispell

BOS - FCA

BOSFCA

Boston Logan Intl

Sun 2/22

4:50 pm-1:13 pm

1 stop22h 23m

Kalispell Glacier Park

Thu 2/26

11:05 am-11:59 pm

1 stop10h 54m

$428

BostonKalispell

BOS - FCA

BOSFCA

Boston Logan Intl

Wed 10/1

7:00 am-12:38 pm

1 stop7h 38m

Kalispell Glacier Park

Sun 10/5

5:23 pm-4:49 pm

1 stop21h 26m

$454

BostonKalispell

BOS - FCA

BOSFCA

Boston Logan Intl

Sun 2/22

7:00 am-3:23 pm

1 stop10h 23m

Kalispell Glacier Park

Thu 2/26

4:00 pm-7:16 am

1 stop13h 16m

$537

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 resultsSorted by cheapest first
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See travel insights to Kalispell from

How to get the cheapest flight ticket from Boston to Kalispell

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 Kalispell?

The month of January is, on average, the cheapest month to fly to Kalispell from Boston, with most prices found around $422. If you aren’t able to travel to Kalispell during the month of January, then flying in December is also cheap. Prices for this month can be found on momondo for an average of $482.

What is the cheapest day to depart on your flight to Kalispell?

The cheapest day to depart from Boston to Kalispell is on a Tuesday. Travelers who choose to depart for Kalispell on a Tuesday will often find tickets for as low as $573. The most expensive day to fly to Kalispell is Sunday, with ticket prices averaging around $717.

What is the cheapest time of day to depart on your flight to Kalispell?

According to our data, the cheapest time of day to fly to Kalispell is at noon. momondo users have found flights departing from Boston to Kalispell at noon for as low as $516. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the afternoon is when there is more demand to fly to Kalispell, so prices are often more expensive at around $676 per ticket.

How far in advance should I book a flight to Kalispell?

You are more likely to see cheaper flights to Kalispell from Boston when booking weeks ahead of your departure date. In general, you can expect to find flights to Kalispell for around $554 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Kalispell from Boston for as low as $429 on momondo.

How have Boston to Kalispell flight prices changed over time?

As of September 2025, prices for Boston to Kalispell flights are approximately 33% cheaper when compared to flights at the same time last year.

When to book flights from Boston to Kalispell

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

Cheap Boston to Kalispell (BOS to FCA) flight deals and tips

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

Direct flights

None
There are no direct flights from Boston to Kalispell. There are no popular flight routes from Boston to Kalispell.
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  • How far is Boston Logan Intl to Kalispell Glacier Park by plane?

    Kalispell Glacier Park is 2110.7 mi away from Boston Logan Intl. By plane, this route typically takes 7h 35m.

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

    Prices for flights from Boston Logan Intl Airport to Kalispell Glacier Park Airport were last updated today.

  • How many operators does momondo search for flights from Boston Logan Intl Airport to Kalispell Glacier Park Airport?

  • How old do you have to be to fly from Boston Logan Intl Airport to Kalispell Glacier Park Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Boston Logan Intl Airport to Kalispell Glacier Park Airport.

  • What documentation or ID do you need to fly to Kalispell Glacier Park Airport?

    The travel and health documents you'll need for your trip to Kalispell Glacier Park Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Kalispell Glacier Park Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Boston to Kalispell?

Best airlines flying from Boston to Kalispell

Compare and see reviews for airlines that fly from Boston to Kalispell with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $312Free CancellationRating
7.9
7,957 reviews
Search Delta flights
Hawaiian AirlinesPriceFrom $332Free CancellationRating
7.8
2,724 reviews
Search Hawaiian Airlines flights
American AirlinesPriceFrom $334Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $342Free CancellationRating
7.4
8,924 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $370Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights

Traveling to a place near Kalispell?

Book flights to Kalispell if you plan to visit one of these locations
Whitefish
Columbia Falls
Polson
East Glacier Park
Essex
Eureka
Cut Bank

Why use momondo?

Why should I use momondo to find a flight deal from Boston to Kalispell?

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 Boston to Kalispell for you.

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

All flight searches from Boston to Kalispell on momondo can be filtered to show those which offer flexible booking policies.

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

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 Boston to Kalispell.

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

Of course. momondo tracks the price of Boston to Kalispell flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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