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Cheap flights from Kalispell to Boston from $230

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 8/27. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Kalispell to Boston

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
12:26 pm - 9:59 pm
FCA
-
BOS
7h 33m
1 stop
United Airlines Logo
6:00 am - 3:21 pm
BOS
-
FCA
11h 21m
1 stop
$389United Airlines
Sat, Oct 17 - Fri, Oct 23
United Airlines Logo
12:26 pm - 9:59 pm
FCA
-
BOS
7h 33m
1 stop
United Airlines Logo
12:45 pm - 9:36 pm
BOS
-
FCA
10h 51m
2 stops
$394United Airlines
Sat, Oct 17 - Sat, Oct 24
Delta Logo
6:00 pm - 6:30 am
FCA
-
BOS
10h 30m
1 stop
Delta Logo
5:55 am - 1:25 pm
BOS
-
FCA
9h 30m
1 stop
$414Delta
Tue, Sep 22 - Sat, Oct 3
American Airlines Logo
4:50 pm - 10:32 am
FCA
-
BOS
15h 42m
1 stop
American Airlines Logo
7:33 am - 2:34 pm
BOS
-
FCA
9h 01m
1 stop
$418American Airlines
Fri, Aug 28 - Mon, Aug 31
Delta Logo
3:14 pm - 11:58 pm
FCA
-
BOS
6h 44m
1 stop
Delta Logo
11:20 am - 5:18 pm
BOS
-
FCA
7h 58m
1 stop
$424Delta
Wed, Sep 2 - Wed, Sep 16
American Airlines Logo
4:50 pm - 9:37 am
FCA
-
BOS
14h 47m
1 stop
American Airlines Logo
8:00 am - 2:33 pm
BOS
-
FCA
8h 33m
1 stop
$426American Airlines
Wed, Sep 2 - Wed, Sep 16
Delta Logo
1:29 pm - 11:53 pm
FCA
-
BOS
8h 24m
1 stop
Delta Logo
9:35 pm - 12:29 pm
BOS
-
FCA
16h 54m
2 stops
$432Delta
Tue, Oct 13 - Tue, Oct 20
Alaska Airlines Logo
8:21 pm - 7:39 am
FCA
-
BOS
9h 18m
1 stop
Alaska Airlines Logo
7:00 am - 7:05 pm
BOS
-
FCA
14h 05m
1 stop
$439Alaska Airlines
Tue, Sep 22 - Sat, Oct 3
Delta Logo
1:29 pm - 11:53 pm
FCA
-
BOS
8h 24m
1 stop
Delta Logo
9:35 pm - 12:29 pm
BOS
-
FCA
16h 54m
2 stops
$453Delta
Tue, Oct 13 - Wed, Oct 21
United Airlines Logo
3:58 pm - 1:11 am
FCA
-
BOS
7h 13m
1 stop
United Airlines Logo
8:05 am - 3:17 pm
BOS
-
FCA
9h 12m
1 stop
$454United Airlines
Thu, Sep 3 - Mon, Sep 7

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United Airlines flights from Kalispell to Boston

Our best United Airlines deals on Kalispell to Boston flight tickets
United Airlines
Oct 17
FCA12:26 pmKalispell Glacier Park
7h 33m
1 stop
BOS9:59 pmBoston Logan Intl
Oct 23
BOS6:00 amBoston Logan Intl
11h 21m
1 stop
FCA3:21 pmKalispell Glacier Park
$389
United Airlines
Oct 17
FCA12:26 pmKalispell Glacier Park
7h 33m
1 stop
BOS9:59 pmBoston Logan Intl
Oct 24
BOS12:45 pmBoston Logan Intl
10h 51m
2 stops
FCA9:36 pmKalispell Glacier Park
$394
United Airlines
Sep 3
FCA3:58 pmKalispell Glacier Park
7h 13m
1 stop
BOS1:11 amBoston Logan Intl
Sep 7
BOS8:05 amBoston Logan Intl
9h 12m
1 stop
FCA3:17 pmKalispell Glacier Park
$454

Alaska Airlines flights from Kalispell to Boston

Our best Alaska Airlines deals on Kalispell to Boston flight tickets
Alaska Airlines
Sep 22
FCA8:21 pmKalispell Glacier Park
9h 18m
1 stop
BOS7:39 amBoston Logan Intl
Oct 3
BOS7:00 amBoston Logan Intl
14h 05m
1 stop
FCA7:05 pmKalispell Glacier Park
$439
Alaska Airlines
Oct 19
FCA7:45 pmKalispell Glacier Park
9h 44m
1 stop
BOS7:29 amBoston Logan Intl
Oct 23
BOS4:55 pmBoston Logan Intl
21h 26m
1 stop
FCA12:21 pmKalispell Glacier Park
$489
Alaska Airlines
Sep 22
FCA6:15 amKalispell Glacier Park
21h 54m
2 stops
BOS6:09 amBoston Logan Intl
Oct 3
BOS7:00 amBoston Logan Intl
14h 05m
1 stop
FCA7:05 pmKalispell Glacier Park
$536

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 June 25, 2026.
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

Cheapest round-trip

KalispellBoston

FCA - BOS

FCABOS

Kalispell Glacier Park

Sat 10/17

12:26 pm-9:59 pm

1 stop7h 33m

Boston Logan Intl

Fri 10/23

6:00 am-3:21 pm

1 stop11h 21m

$389

KalispellBoston

FCA - BOS

FCABOS

Kalispell Glacier Park

Sat 10/17

12:26 pm-9:59 pm

1 stop7h 33m

Boston Logan Intl

Sat 10/24

12:45 pm-9:36 pm

2 stops10h 51m

$394

KalispellBoston

FCA - BOS

FCABOS

Kalispell Glacier Park

Tue 9/22

6:00 pm-6:30 am

1 stop10h 30m

Boston Logan Intl

Sat 10/3

5:55 am-1:25 pm

1 stop9h 30m

$414

KalispellBoston

FCA - BOS

FCABOS

Kalispell Glacier Park

Fri 8/28

4:50 pm-10:32 am

1 stop15h 42m

Boston Logan Intl

Mon 8/31

7:33 am-2:34 pm

1 stop9h 01m

$418
Quickest round-trip

KalispellBoston

FCA - BOS

FCABOS

Kalispell Glacier Park

Wed 9/2

3:14 pm-11:58 pm

1 stop6h 44m

Boston Logan Intl

Wed 9/16

11:20 am-5:18 pm

1 stop7h 58m

$424

KalispellBoston

FCA - BOS

FCABOS

Kalispell Glacier Park

Wed 9/2

4:50 pm-9:37 am

1 stop14h 47m

Boston Logan Intl

Wed 9/16

8:00 am-2:33 pm

1 stop8h 33m

$426

KalispellBoston

FCA - BOS

FCABOS

Kalispell Glacier Park

Tue 10/13

1:29 pm-11:53 pm

1 stop8h 24m

Boston Logan Intl

Tue 10/20

9:35 pm-12:29 pm

2 stops16h 54m

$432

KalispellBoston

FCA - BOS

FCABOS

Kalispell Glacier Park

Tue 9/22

8:21 pm-7:39 am

1 stop9h 18m

Boston Logan Intl

Sat 10/3

7:00 am-7:05 pm

1 stop14h 05m

$439

KalispellBoston

FCA - BOS

FCABOS

Kalispell Glacier Park

Tue 10/13

1:29 pm-11:53 pm

1 stop8h 24m

Boston Logan Intl

Wed 10/21

9:35 pm-12:29 pm

2 stops16h 54m

$453

KalispellBoston

FCA - BOS

FCABOS

Kalispell Glacier Park

Thu 9/3

3:58 pm-1:11 am

1 stop7h 13m

Boston Logan Intl

Mon 9/7

8:05 am-3:17 pm

1 stop9h 12m

$454

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 Boston from

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 typical price of a round-trip flight between Kalispell and Boston?

What is the cheapest month to fly to Boston?

In general, March 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 $0. If you aren’t able to travel during the month of March, then book flights to Boston from Kalispell during January instead. Flights to Boston in January, while not as cheap as those in March, still average around $0.

How have Kalispell to Boston flight prices changed over time?

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

Fastest flight time

6h 44m

Direct flights

None
The fastest flight from Kalispell to Boston takes 6h 44m
There are no direct flights from Kalispell to Boston. There are no popular flight routes from Kalispell to Boston.
Search flight deals

Frequently asked questions about flying from Kalispell to Boston

  • 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 44m 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 $296Free CancellationRating
7.8
8,440 reviews
Search Delta flights
American AirlinesPriceFrom $356Free CancellationRating
7.1
11,755 reviews
Search American Airlines flights
United AirlinesPriceFrom $381Free CancellationRating
7.4
9,886 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
Cambridge
York Beach
Kennebunkport
Plymouth
South Yarmouth
Laconia
Revere
Gloucester
Falmouth
Brockton
Warwick
Narragansett
South Portland
Chatham
Middletown

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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