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Cheap flights from Kalispell to Boston from $297

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Kalispell to Boston departing on 12/9. 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

Enter your travel dates to find the best prices.
Delta Logo
12:11 pm - 11:41 pmFCA-BOS
9h 30m1 stop
Delta Logo
10:15 am - 5:25 pmBOS-FCA
9h 10m1 stop
$297Delta
Find Deal
Tue, Dec 9 - Sun, Dec 14
Delta Logo
6:06 pm - 6:20 amFCA-BOS
10h 14m1 stop
Delta Logo
12:00 pm - 11:21 pmBOS-FCA
13h 21m2 stops
$302Delta
Find Deal
Tue, Dec 9 - Sat, Dec 13
Delta Logo
6:06 pm - 11:15 amFCA-BOS
15h 09m2 stops
Delta Logo
12:00 pm - 11:21 pmBOS-FCA
13h 21m2 stops
$307Delta
Find Deal
Tue, Dec 9 - Sat, Dec 13
United Airlines Logo
7:00 am - 11:49 pmFCA-BOS
14h 49m2 stops
United Airlines Logo
3:15 pm - 9:59 pmBOS-FCA
8h 44m1 stop
$319United Airlines
Find Deal
Sat, Jan 17 - Mon, Jan 19
United Airlines Logo
2:42 pm - 11:52 pmFCA-BOS
7h 10m1 stop
United Airlines Logo
3:15 pm - 9:59 pmBOS-FCA
8h 44m1 stop
$323United Airlines
Find Deal
Sat, Jan 17 - Mon, Jan 19
United Airlines Logo
12:45 pm - 11:49 pmFCA-BOS
9h 04m2 stops
United Airlines Logo
12:08 pm - 9:59 pmBOS-FCA
11h 51m2 stops
$324United Airlines
Find Deal
Sat, Jan 17 - Mon, Jan 19
Delta Logo
5:00 am - 5:18 pmFCA-BOS
10h 18m2 stops
Delta Logo
8:05 am - 5:25 pmBOS-FCA
11h 20m2 stops
$333Delta
Find Deal
Tue, Dec 9 - Sun, Dec 14
Hawaiian Airlines Logo
6:40 am - 4:46 pmFCA-BOS
8h 06m1 stop
Hawaiian Airlines Logo
7:00 am - 3:23 pmBOS-FCA
10h 23m1 stop
$346Hawaiian Airlines
Find Deal
Tue, Mar 10 - Wed, Mar 11
Alaska Airlines Logo
4:09 pm - 7:16 amFCA-BOS
13h 07m2 stops
Alaska Airlines Logo
10:00 am - 11:59 pmBOS-FCA
15h 59m1 stop
$468Alaska Airlines
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Tue, Mar 10 - Wed, Mar 11
Alaska Airlines Logo
6:00 am - 5:51 amFCA-BOS
21h 51m2 stops
Alaska Airlines Logo
6:59 pm - 12:20 pmBOS-FCA
19h 21m1 stop
$913Alaska Airlines
Find Deal
Tue, Nov 25 - Tue, Dec 2

Delta flights from Kalispell to Boston

Our best Delta deals on Kalispell to Boston flight tickets
Delta
Dec 9
FCA12:11 pmKalispell Glacier Park
9h 30m
1 stop
BOS11:41 pmBoston Logan Intl
Dec 14
BOS10:15 amBoston Logan Intl
9h 10m
1 stop
FCA5:25 pmKalispell Glacier Park
$297
Find similar
Delta
Dec 9
FCA6:06 pmKalispell Glacier Park
10h 14m
1 stop
BOS6:20 amBoston Logan Intl
Dec 13
BOS12:00 pmBoston Logan Intl
13h 21m
2 stops
FCA11:21 pmKalispell Glacier Park
$302
Find similar
Delta
Dec 9
FCA6:06 pmKalispell Glacier Park
15h 09m
2 stops
BOS11:15 amBoston Logan Intl
Dec 13
BOS12:00 pmBoston Logan Intl
13h 21m
2 stops
FCA11:21 pmKalispell Glacier Park
$307
Find similar

Alaska Airlines flights from Kalispell to Boston

Our best Alaska Airlines deals on Kalispell to Boston flight tickets
Alaska Airlines
Mar 10
FCA4:09 pmKalispell Glacier Park
13h 07m
2 stops
BOS7:16 amBoston Logan Intl
Mar 11
BOS10:00 amBoston Logan Intl
15h 59m
1 stop
FCA11:59 pmKalispell Glacier Park
$468
Find similar
Alaska Airlines
Nov 25
FCA6:00 amKalispell Glacier Park
21h 51m
2 stops
BOS5:51 amBoston Logan Intl
Dec 2
BOS6:59 pmBoston Logan Intl
19h 21m
1 stop
FCA12:20 pmKalispell Glacier Park
$913
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 November 4, 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

Tue 12/9

12:11 pm-11:41 pm

1 stop9h 30m

Boston Logan Intl

Sun 12/14

10:15 am-5:25 pm

1 stop9h 10m

$297

KalispellBoston

FCA - BOS

FCABOS

Kalispell Glacier Park

Tue 12/9

6:06 pm-6:20 am

1 stop10h 14m

Boston Logan Intl

Sat 12/13

12:00 pm-11:21 pm

2 stops13h 21m

$302

KalispellBoston

FCA - BOS

FCABOS

Kalispell Glacier Park

Tue 12/9

6:06 pm-11:15 am

2 stops15h 09m

Boston Logan Intl

Sat 12/13

12:00 pm-11:21 pm

2 stops13h 21m

$307

KalispellBoston

FCA - BOS

FCABOS

Kalispell Glacier Park

Sat 1/17

7:00 am-11:49 pm

2 stops14h 49m

Boston Logan Intl

Mon 1/19

3:15 pm-9:59 pm

1 stop8h 44m

$319

KalispellBoston

FCA - BOS

FCABOS

Kalispell Glacier Park

Sat 1/17

2:42 pm-11:52 pm

1 stop7h 10m

Boston Logan Intl

Mon 1/19

3:15 pm-9:59 pm

1 stop8h 44m

$323

KalispellBoston

FCA - BOS

FCABOS

Kalispell Glacier Park

Sat 1/17

12:45 pm-11:49 pm

2 stops9h 04m

Boston Logan Intl

Mon 1/19

12:08 pm-9:59 pm

2 stops11h 51m

$324

KalispellBoston

FCA - BOS

FCABOS

Kalispell Glacier Park

Tue 12/9

5:00 am-5:18 pm

2 stops10h 18m

Boston Logan Intl

Sun 12/14

8:05 am-5:25 pm

2 stops11h 20m

$333

KalispellBoston

FCA - BOS

FCABOS

Kalispell Glacier Park

Tue 3/10

6:40 am-4:46 pm

1 stop8h 06m

Boston Logan Intl

Wed 3/11

7:00 am-3:23 pm

1 stop10h 23m

$346

KalispellBoston

FCA - BOS

FCABOS

Kalispell Glacier Park

Tue 3/10

4:09 pm-7:16 am

2 stops13h 07m

Boston Logan Intl

Wed 3/11

10:00 am-11:59 pm

1 stop15h 59m

$468

KalispellBoston

FCA - BOS

FCABOS

Kalispell Glacier Park

Tue 11/25

6:00 am-5:51 am

2 stops21h 51m

Boston Logan Intl

Tue 12/2

6:59 pm-12:20 pm

1 stop19h 21m

$913

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 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 December instead. Flights to Boston in December, while not as cheap as those in January, still average around $452.

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 40% 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 November 2025, prices for Kalispell to Boston flights are approximately 60% 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.
Search flight deals

  • 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 56m 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
DeltaPriceFrom $306Free CancellationRating
7.9
8,003 reviews
Search Delta flights
United AirlinesPriceFrom $388Free CancellationRating
7.4
9,002 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $397Free CancellationRating
8.0
11,241 reviews
Search Alaska Airlines flights
American AirlinesPriceFrom $405Free CancellationRating
7.2
11,040 reviews
Search American 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
Falmouth
Laconia
Brockton
Concord
Everett
Sturbridge
Warwick

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.

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