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Cheap flights from Boston to Kalispell from $149

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to Kalispell departing on 5/12. 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 Boston to Kalispell

Cheap round-trip flights

Enter your travel dates to find the best prices.
Alaska Airlines Logo
6:24 pm - 12:12 pm
BOS
-
FCA
19h 48m
1 stop
Alaska Airlines Logo
7:53 pm - 6:54 am
FCA
-
BOS
9h 01m
1 stop
$297Alaska Airlines
lun., feb. 23 - lun., mar. 2
Delta Logo
8:05 am - 1:28 pm
BOS
-
FCA
7h 23m
1 stop
Delta Logo
5:05 am - 5:04 pm
FCA
-
BOS
9h 59m
2 stops
$302Delta
mar., abr. 7 - mar., abr. 14
Delta Logo
5:30 am - 1:28 pm
BOS
-
FCA
9h 58m
2 stops
Delta Logo
5:05 am - 5:04 pm
FCA
-
BOS
9h 59m
2 stops
$308Delta
mar., abr. 7 - mar., abr. 14
Delta Logo
8:05 am - 1:28 pm
BOS
-
FCA
7h 23m
1 stop
Delta Logo
2:49 pm - 11:40 pm
FCA
-
BOS
6h 51m
1 stop
$309Delta
mar., abr. 7 - mar., abr. 14
Delta Logo
5:50 am - 1:28 pm
BOS
-
FCA
9h 38m
1 stop
Delta Logo
5:05 am - 8:15 pm
FCA
-
BOS
13h 10m
2 stops
$314Delta
mar., abr. 7 - mar., abr. 14
Delta Logo
5:30 am - 1:28 pm
BOS
-
FCA
9h 58m
2 stops
Delta Logo
5:05 am - 5:04 pm
FCA
-
BOS
9h 59m
2 stops
$320Delta
mar., abr. 7 - mar., abr. 14
Alaska Airlines Logo
6:24 pm - 12:12 pm
BOS
-
FCA
19h 48m
1 stop
Alaska Airlines Logo
7:53 pm - 6:54 am
FCA
-
BOS
9h 01m
1 stop
$330Alaska Airlines
sáb., feb. 28 - mar., mar. 3
Alaska Airlines Logo
4:36 pm - 1:13 pm
BOS
-
FCA
22h 37m
1 stop
Alaska Airlines Logo
7:53 pm - 6:54 am
FCA
-
BOS
9h 01m
1 stop
$337Alaska Airlines
lun., feb. 23 - mié., mar. 4
Delta Logo
5:50 am - 1:28 pm
BOS
-
FCA
9h 38m
1 stop
Delta Logo
5:56 pm - 6:10 am
FCA
-
BOS
10h 14m
1 stop
$338Delta
lun., mar. 23 - mié., mar. 25
American Airlines Logo
6:22 am - 12:30 pm
BOS
-
FCA
8h 08m
1 stop
American Airlines Logo
1:23 pm - 11:59 pm
FCA
-
BOS
8h 36m
1 stop
$357American Airlines
mar., jun. 9 - mar., jun. 16

American Airlines flights from Boston to Kalispell

Our best American Airlines deals on Boston to Kalispell flight tickets
American Airlines
Jun 9
BOS6:22 amBoston Logan Intl
8h 08m
1 stop
FCA12:30 pmKalispell Glacier Park
Jun 16
FCA1:23 pmKalispell Glacier Park
8h 36m
1 stop
BOS11:59 pmBoston Logan Intl
$357
American Airlines
Jun 9
BOS7:00 amBoston Logan Intl
11h 04m
2 stops
FCA4:04 pmKalispell Glacier Park
Jun 16
FCA1:23 pmKalispell Glacier Park
8h 36m
1 stop
BOS11:59 pmBoston Logan Intl
$403
American Airlines
May 21
BOS6:22 amBoston Logan Intl
8h 08m
1 stop
FCA12:30 pmKalispell Glacier Park
May 24
FCA1:23 pmKalispell Glacier Park
8h 36m
1 stop
BOS11:59 pmBoston Logan Intl
$468

United Airlines flights from Boston to Kalispell

Our best United Airlines deals on Boston to Kalispell flight tickets
United Airlines
Mar 23
BOS7:00 amBoston Logan Intl
8h 34m
1 stop
FCA1:34 pmKalispell Glacier Park
Mar 25
FCA6:00 amKalispell Glacier Park
12h 15m
2 stops
BOS8:15 pmBoston Logan Intl
$392
United Airlines
Jun 11
BOS6:00 amBoston Logan Intl
7h 41m
1 stop
FCA11:41 amKalispell Glacier Park
Jun 17
FCA12:35 pmKalispell Glacier Park
7h 05m
1 stop
BOS9:40 pmBoston Logan Intl
$539
United Airlines
Mar 23
BOS10:30 amBoston Logan Intl
13h 27m
2 stops
FCA9:57 pmKalispell Glacier Park
Mar 25
FCA6:00 amKalispell Glacier Park
13h 41m
2 stops
BOS9:41 pmBoston Logan Intl
$549

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 enero 29, 2026.
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

lun. 2/23

6:24 pm-12:12 pm

1 stop19h 48m

Kalispell Glacier Park

lun. 3/2

7:53 pm-6:54 am

1 stop9h 01m

$297

BostonKalispell

BOS - FCA

BOSFCA

Boston Logan Intl

mar. 4/7

8:05 am-1:28 pm

1 stop7h 23m

Kalispell Glacier Park

mar. 4/14

5:05 am-5:04 pm

2 stops9h 59m

$302

BostonKalispell

BOS - FCA

BOSFCA

Boston Logan Intl

mar. 4/7

5:30 am-1:28 pm

2 stops9h 58m

Kalispell Glacier Park

mar. 4/14

5:05 am-5:04 pm

2 stops9h 59m

$308

BostonKalispell

BOS - FCA

BOSFCA

Boston Logan Intl

mar. 4/7

8:05 am-1:28 pm

1 stop7h 23m

Kalispell Glacier Park

mar. 4/14

2:49 pm-11:40 pm

1 stop6h 51m

$309

BostonKalispell

BOS - FCA

BOSFCA

Boston Logan Intl

mar. 4/7

5:50 am-1:28 pm

1 stop9h 38m

Kalispell Glacier Park

mar. 4/14

5:05 am-8:15 pm

2 stops13h 10m

$314

BostonKalispell

BOS - FCA

BOSFCA

Boston Logan Intl

mar. 4/7

5:30 am-1:28 pm

2 stops9h 58m

Kalispell Glacier Park

mar. 4/14

5:05 am-5:04 pm

2 stops9h 59m

$320

BostonKalispell

BOS - FCA

BOSFCA

Boston Logan Intl

sáb. 2/28

6:24 pm-12:12 pm

1 stop19h 48m

Kalispell Glacier Park

mar. 3/3

7:53 pm-6:54 am

1 stop9h 01m

$330

BostonKalispell

BOS - FCA

BOSFCA

Boston Logan Intl

lun. 2/23

4:36 pm-1:13 pm

1 stop22h 37m

Kalispell Glacier Park

mié. 3/4

7:53 pm-6:54 am

1 stop9h 01m

$337

BostonKalispell

BOS - FCA

BOSFCA

Boston Logan Intl

lun. 3/23

5:50 am-1:28 pm

1 stop9h 38m

Kalispell Glacier Park

mié. 3/25

5:56 pm-6:10 am

1 stop10h 14m

$338

BostonKalispell

BOS - FCA

BOSFCA

Boston Logan Intl

mar. 6/9

6:22 am-12:30 pm

1 stop8h 08m

Kalispell Glacier Park

mar. 6/16

1:23 pm-11:59 pm

1 stop8h 36m

$357

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 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 November is, on average, the cheapest month to fly to Kalispell from Boston, with most prices found around $410. If you aren’t able to travel to Kalispell during the month of November, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $420.

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 $584 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 $447 on momondo.

Can stopping save me money on Boston to Kalispell flights?

You could potentially save up to 8% on your flight if you consider stops on a Boston to Kalispell flight.

How have Boston to Kalispell flight prices changed over time?

As of January 2026, prices for Boston to Kalispell flights are approximately 45% 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

Fastest flight time

7h 23m

Direct flights

None
The fastest flight from Boston to Kalispell takes 7h 23m
There are no direct flights from Boston to Kalispell. There are no popular flight routes from Boston to Kalispell.
Search flight deals

  • 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 23m.

  • 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
Hawaiian AirlinesPriceFrom $260Free CancellationRating
7.8
2,830 reviews
Search Hawaiian Airlines flights
DeltaPriceFrom $312Free CancellationRating
7.9
8,128 reviews
Search Delta flights
American AirlinesPriceFrom $326Free CancellationRating
7.2
11,205 reviews
Search American Airlines flights
United AirlinesPriceFrom $330Free CancellationRating
7.4
9,215 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $378Free CancellationRating
8.0
11,807 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
Cut Bank
Essex
Eureka

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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