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Cheap flights from Kalispell to Boston from $169

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 10/28. 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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0 bags

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Find the cheapest flights from Kalispell to Boston

Cheap round-trip flights

Alaska Airlines Logo
2:15 pm - 12:27 amFCA-BOS
8h 12m1 stop
Alaska Airlines Logo
6:15 am - 1:52 pmBOS-FCA
9h 37m1 stop
$336Alaska Airlines
Find Deal
Mon, Sep 29 - Sat, Oct 4
Delta Logo
2:55 pm - 11:59 pmFCA-BOS
7h 04m1 stop
Delta Logo
8:10 am - 2:29 pmBOS-FCA
8h 19m1 stop
$337Delta
Find Deal
Fri, Oct 3 - Tue, Oct 7
United Airlines Logo
6:30 am - 7:54 pmFCA-BOS
11h 24m2 stops
United Airlines Logo
6:00 am - 11:35 amBOS-FCA
7h 35m1 stop
$342United Airlines
Find Deal
Wed, Oct 1 - Tue, Oct 7
United Airlines Logo
12:41 pm - 11:59 pmFCA-BOS
9h 18m2 stops
United Airlines Logo
5:30 am - 1:25 pmBOS-FCA
9h 55m2 stops
$347United Airlines
Find Deal
Wed, Oct 1 - Tue, Oct 7
Delta Logo
6:06 pm - 6:30 amFCA-BOS
10h 24m1 stop
Delta Logo
10:15 am - 11:00 pmBOS-FCA
14h 45m2 stops
$352Delta
Find Deal
Thu, Nov 20 - Thu, Nov 27
United Airlines Logo
4:08 pm - 6:07 amFCA-BOS
11h 59m1 stop
United Airlines Logo
6:00 am - 11:35 amBOS-FCA
7h 35m1 stop
$367United Airlines
Find Deal
Thu, Oct 2 - Mon, Oct 6
Delta Logo
6:06 pm - 6:30 amFCA-BOS
10h 24m1 stop
Delta Logo
5:50 am - 1:56 pmBOS-FCA
10h 06m1 stop
$368Delta
Find Deal
Mon, Nov 24 - Fri, Nov 28
Alaska Airlines Logo
2:15 pm - 12:27 amFCA-BOS
8h 12m1 stop
Alaska Airlines Logo
6:00 am - 1:30 pmBOS-FCA
9h 30m1 stop
$372Alaska Airlines
Find Deal
Tue, Sep 30 - Fri, Oct 3
American Airlines Logo
1:14 pm - 11:54 pmFCA-BOS
8h 40m1 stop
American Airlines Logo
5:24 am - 12:43 pmBOS-FCA
9h 19m1 stop
$410American Airlines
Find Deal
Fri, Oct 17 - Sun, Oct 19
American Airlines Logo
1:14 pm - 9:32 amFCA-BOS
18h 18m1 stop
American Airlines Logo
5:24 am - 12:43 pmBOS-FCA
9h 19m1 stop
$417American Airlines
Find Deal
Fri, Oct 17 - Sun, Oct 19

Delta flights from Kalispell to Boston

Our best Delta deals on Kalispell to Boston flight tickets
Delta
Oct 3
FCA2:55 pmKalispell Glacier Park
7h 04m
1 stop
BOS11:59 pmBoston Logan Intl
Oct 7
BOS8:10 amBoston Logan Intl
8h 19m
1 stop
FCA2:29 pmKalispell Glacier Park
$337
Find similar
Delta
Nov 20
FCA6:06 pmKalispell Glacier Park
10h 24m
1 stop
BOS6:30 amBoston Logan Intl
Nov 27
BOS10:15 amBoston Logan Intl
14h 45m
2 stops
FCA11:00 pmKalispell Glacier Park
$352
Find similar
Delta
Nov 24
FCA6:06 pmKalispell Glacier Park
10h 24m
1 stop
BOS6:30 amBoston Logan Intl
Nov 28
BOS5:50 amBoston Logan Intl
10h 06m
1 stop
FCA1:56 pmKalispell Glacier Park
$368
Find similar

Alaska Airlines flights from Kalispell to Boston

Our best Alaska Airlines deals on Kalispell to Boston flight tickets
Alaska Airlines
Sep 29
FCA2:15 pmKalispell Glacier Park
8h 12m
1 stop
BOS12:27 amBoston Logan Intl
Oct 4
BOS6:15 amBoston Logan Intl
9h 37m
1 stop
FCA1:52 pmKalispell Glacier Park
$336
Find similar
Alaska Airlines
Sep 30
FCA2:15 pmKalispell Glacier Park
8h 12m
1 stop
BOS12:27 amBoston Logan Intl
Oct 3
BOS6:00 amBoston Logan Intl
9h 30m
1 stop
FCA1:30 pmKalispell Glacier Park
$372
Find similar
Alaska Airlines
Sep 29
FCA2:15 pmKalispell Glacier Park
8h 12m
1 stop
BOS12:27 amBoston Logan Intl
Oct 7
BOS7:20 amBoston Logan Intl
12h 35m
1 stop
FCA5:55 pmKalispell Glacier Park
$399
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Kalispell to Boston 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 17, 2025.
Use the filters below to find and compare flights from Kalispell to Boston that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

KalispellBoston

FCA - BOS

FCABOS

Kalispell Glacier Park

Mon 9/29

2:15 pm-12:27 am

1 stop8h 12m

Boston Logan Intl

Sat 10/4

6:15 am-1:52 pm

1 stop9h 37m

$336

KalispellBoston

FCA - BOS

FCABOS

Kalispell Glacier Park

Fri 10/3

2:55 pm-11:59 pm

1 stop7h 04m

Boston Logan Intl

Tue 10/7

8:10 am-2:29 pm

1 stop8h 19m

$337

KalispellBoston

FCA - BOS

FCABOS

Kalispell Glacier Park

Wed 10/1

6:30 am-7:54 pm

2 stops11h 24m

Boston Logan Intl

Tue 10/7

6:00 am-11:35 am

1 stop7h 35m

$342

KalispellBoston

FCA - BOS

FCABOS

Kalispell Glacier Park

Wed 10/1

12:41 pm-11:59 pm

2 stops9h 18m

Boston Logan Intl

Tue 10/7

5:30 am-1:25 pm

2 stops9h 55m

$347

KalispellBoston

FCA - BOS

FCABOS

Kalispell Glacier Park

Thu 11/20

6:06 pm-6:30 am

1 stop10h 24m

Boston Logan Intl

Thu 11/27

10:15 am-11:00 pm

2 stops14h 45m

$352

KalispellBoston

FCA - BOS

FCABOS

Kalispell Glacier Park

Thu 10/2

4:08 pm-6:07 am

1 stop11h 59m

Boston Logan Intl

Mon 10/6

6:00 am-11:35 am

1 stop7h 35m

$367

KalispellBoston

FCA - BOS

FCABOS

Kalispell Glacier Park

Mon 11/24

6:06 pm-6:30 am

1 stop10h 24m

Boston Logan Intl

Fri 11/28

5:50 am-1:56 pm

1 stop10h 06m

$368

KalispellBoston

FCA - BOS

FCABOS

Kalispell Glacier Park

Tue 9/30

2:15 pm-12:27 am

1 stop8h 12m

Boston Logan Intl

Fri 10/3

6:00 am-1:30 pm

1 stop9h 30m

$372

KalispellBoston

FCA - BOS

FCABOS

Kalispell Glacier Park

Fri 10/17

1:14 pm-11:54 pm

1 stop8h 40m

Boston Logan Intl

Sun 10/19

5:24 am-12:43 pm

1 stop9h 19m

$410

KalispellBoston

FCA - BOS

FCABOS

Kalispell Glacier Park

Fri 10/17

1:14 pm-9:32 am

1 stop18h 18m

Boston Logan Intl

Sun 10/19

5:24 am-12:43 pm

1 stop9h 19m

$417

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Kalispell to Boston

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 Boston?

In general, January is the cheapest month to fly from Kalispell to Boston. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $428. If you aren’t able to travel during the month of January, then book flights to Boston from Kalispell during April instead. Flights to Boston in April, while not as cheap as those in January, still average around $454.

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

The cheapest day to depart from Kalispell to Boston is on a Monday when prices can be found for as low as $503. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Boston on Sunday is $846.

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

According to our data, the cheapest time of day to fly to Boston is at noon. momondo users have found flights departing from Kalispell to Boston at noon for as low as $518. 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 morning is when there is more demand to fly to Boston, so prices are often more expensive at around $653 per ticket.

Can stopping save me money on Kalispell to Boston flights?

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

How have Kalispell to Boston flight prices changed over time?

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

When to book flights from Kalispell to Boston

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

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

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

Direct flights

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

    Kalispell Glacier Park and Boston Logan Intl are 2110.7 mi apart from one another. 6h 35m is a normal flight duration for this route.

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

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

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Kalispell Glacier Park Airport to Boston Logan Intl Airport.

  • What documentation or ID do you need to fly to Boston Logan Intl Airport?

    The travel and health documents you'll need for your trip to Boston Logan Intl 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 Boston Logan Intl 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 Kalispell to Boston?

Best airlines flying from Kalispell to Boston

Compare and see reviews for airlines that fly from Kalispell to Boston with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $306Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $306Free CancellationRating
7.9
7,961 reviews
Search Delta flights
Alaska AirlinesPriceFrom $397Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $421Free CancellationRating
7.4
8,926 reviews
Search United Airlines flights

Traveling to a place near Boston?

Book flights to Boston if you plan to visit one of these locations
Hampton Beach
Salem
Ogunquit
Old Orchard Beach
Hampton
York Beach
Plymouth
Kennebunkport
Cambridge
South Yarmouth
Narragansett
Nashua
Gloucester
Brockton
Laconia
Falmouth
Concord
Everett
Wells
Chatham

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Kalispell to Boston. Millions of users trust and use momondo every year so you are in good hands.

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

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

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

Once all potential Kalispell to Boston flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are simply researching potential flights to Boston, momondo offers a useful price alert feature which will track prices for flights to Boston from Kalispell and alert you when they change.

An easier way to manage your Boston trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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