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Kalispell

$200+ Cheap flights from Boston to Kalispell (BOS - FCA)

BOS — FCA
Oct 22 — Oct 291
Thu 10/22
Thu 10/29
1 adult, Economy
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1. Tell us where you want to go

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Cheap flight deals from Boston to Kalispell

Cheapest flights from Boston to Kalispell

Wed 10/146:00 am -
1 stop7h 28m
Sun 10/184:17 pm -
1 stop11h 54m
Deal found 9/20$399
Fri 10/166:00 am -
1 stop7h 28m
Tue 10/2010:45 am -
2 stops12h 09m
Deal found 9/18$404
Fri 10/27:05 am -
1 stop8h 20m
Mon 10/56:00 pm -
1 stop10h 10m
Deal found 9/17$479
Mon 11/27:27 am -
1 stop9h 14m
Fri 11/63:36 pm -
1 stop6h 44m
Deal found 9/18$499
Fri 10/26:05 am -
1 stop7h 42m
Tue 10/66:00 am -
1 stop6h 10m
Deal found 9/18$509
Wed 10/146:00 am -
1 stop7h 28m
Sat 10/172:30 pm -
1 stop7h 29m
Deal found 9/18$529
Sat 10/177:01 am -
2 stops15h 01m
Thu 10/2212:26 pm -
1 stop8h 58m
Deal found 9/18$534
Sat 10/177:01 am -
2 stops15h 01m
Tue 10/2010:45 am -
2 stops12h 09m
Deal found 9/18$539
Sun 10/46:00 am -
1 stop7h 28m
Sat 10/1010:45 am -
2 stops12h 09m
Deal found 9/21$557
Sun 10/186:00 am -
1 stop7h 28m
Wed 10/2112:26 pm -
1 stop8h 58m
Deal found 9/18$569
Sun 10/186:00 am -
1 stop7h 28m
Fri 10/2310:45 am -
2 stops12h 09m
Deal found 9/18$574

Find flight deals from Boston to Kalispell

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$399
(United Airlines)

One-way from

$200
(Delta)

Popular in

December

Cheapest in

May

Average price

$534
Provider with most accurate pricing for Boston Logan Intl-Kalispell Glacier Park flight deals.
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Provider most trusted by Cheapflights users for Boston Logan Intl-Kalispell Glacier Park flights.
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From Boston Logan Intl to Kalispell Glacier Park
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One-way flight from Boston Logan Intl to Kalispell Glacier Park
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Highest demand for flights based on searches. 15% potential increase in price ($114 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($38 potential savings vs. average RT price).
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Average for round-trip flights in September 2026
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Boston to Kalispell that are best for you.

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Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonKalispell

BOS Boston Logan Intl - FCA Kalispell Glacier Park

BOSFCA

Boston Logan Intl

Wed 11/4

7:27 am-2:41 pm

1 stop9h 14m

Kalispell Glacier Park

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$200

BostonKalispell

BOS Boston Logan Intl - FCA Kalispell Glacier Park

BOSFCA

Boston Logan Intl

Wed 11/4

3:05 pm-9:51 pm

1 stop8h 46m

Kalispell Glacier Park

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$200

BostonKalispell

BOS Boston Logan Intl - FCA Kalispell Glacier Park

BOSFCA

Boston Logan Intl

Tue 9/29

7:45 am-3:34 pm

1 stop9h 49m

Kalispell Glacier Park

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$290
Quickest round-trip

BostonKalispell

BOS Boston Logan Intl - FCA Kalispell Glacier Park

BOSFCA

Boston Logan Intl

Sat 9/26

6:05 am-11:47 am

1 stop7h 42m

Kalispell Glacier Park

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$290

BostonKalispell

BOS Boston Logan Intl - FCA Kalispell Glacier Park

BOSFCA

Boston Logan Intl

Sun 11/22

9:00 am-7:15 pm

1 stop12h 15m

Kalispell Glacier Park

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$335

BostonKalispell

BOS Boston Logan Intl - FCA Kalispell Glacier Park

BOSFCA

Boston Logan Intl

Sat 9/26

6:00 am-4:21 pm

2 stops12h 21m

Kalispell Glacier Park

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$350

BostonKalispell

BOS Boston Logan Intl - FCA Kalispell Glacier Park

BOSFCA

Boston Logan Intl

Sat 10/24

6:00 am-11:28 am

1 stop7h 28m

Kalispell Glacier Park

Wed 10/28

2:36 pm-11:50 pm

1 stop7h 14m

$529

BostonKalispell

BOS Boston Logan Intl - FCA Kalispell Glacier Park

BOSFCA

Boston Logan Intl

Wed 10/14

6:00 am-11:28 am

1 stop7h 28m

Kalispell Glacier Park

Mon 10/19

12:26 pm-9:59 pm

1 stop7h 33m

$529

BostonKalispell

BOS Boston Logan Intl - FCA Kalispell Glacier Park

BOSFCA

Boston Logan Intl

Sat 10/17

7:45 am-3:16 pm

1 stop9h 31m

Kalispell Glacier Park

Mon 10/19

12:26 pm-11:24 pm

1 stop8h 58m

$529

BostonKalispell

BOS Boston Logan Intl - FCA Kalispell Glacier Park

BOSFCA

Boston Logan Intl

Wed 2/24

6:05 am-11:07 pm

2 stops19h 02m

Kalispell Glacier Park

Tue 3/2

1:29 pm-11:53 pm

1 stop8h 24m

$537

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/19

Showing 1-10 of 15 resultsSorted by cheapest first
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Compare providers for flights from Boston to Kalispell

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boston to Kalispell in September.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Boston-Kalispell flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boston-Kalispell flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Boston-Kalispell flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Boston-Kalispell flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Boston-Kalispell flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Boston to Kalispell

Have a flexible travel schedule? Discover the best time to fly to Kalispell from Boston with our price prediction graph.
Estimated round-trip price

Cheapflights Insights

Everything you need to know about your flight from Boston to Kalispell

How far ahead should I book a flight from Boston to Kalispell?

To ensure you get the cheapest price possible for a flight from Boston to Kalispell, you should look to book at least 37 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Boston to Kalispell?

Currently, May is the cheapest month in which you can book a flight from Boston to Kalispell (average of $453). Flying from Boston to Kalispell in December is currently the most expensive (average of $1,042). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from Boston to Kalispell?

Airfare is typical for this route at the moment.

Boston to Kalispell flights typically cost between $388 and $616 in October.
The cheapest round-trip price found within the last 5 days was $399 on United Airlines (Oct 14-Oct 18).

Reviews of airlines servicing Kalispell

Peruse reviews from past customers who have flown with Alaska Airlines,Delta, andUnited Airlines from Boston to Kalispell to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
7.9
Good
12,953 reviews

Comfort

7.8

Entertainment

7.0

Crew

8.5

Boarding

8.1

Food

7.0

Overall

7.9

Reviews

1 / 20
2.0
Mediocre

Chris,Aug 2026

GEG - SFO

Our flight was delayed multiple times over the course of the day for a total of almost ten hours. It was supposed to be a two-hour flight from San Francisco to Spokane. It turned into a nightmare of waiting all day in the airport, not knowing whether we would fly or not, whether we would miss my son's wedding and lose the expenses already incurred for car rental and accommodations. The Alaska staff seemed clueless and never gave us any convincing or definitive information. The airline offered food vouchers and discounts on future flights to make up for the trouble. However, the information about these concessions was not timely, nor were the vouchers themselves very useful. We were a family group of four people. The airline decided to give us one food voucher for $96, which is barely enough for four to get a sandwich and a drink each. Only by persistently addressing the airport food retailers were we able to get anything at all. Then, taking the exact opposite approach, the airline sent me, the original purchaser of all four tickets and the only email account they had, four vouchers for $150 each in the names of each of the four passengers. So, any one of us could get a discount on a future flight with Alaska in that amount. But I originally paid for all the tickets. It makes no sense, except to suggest that Alaska chooses the way to distribute vouchers that seems most likely to minimize the probability that they will be utilized. In my opinion, I should be offered a total refund for the ordeal we were forced to endure or at least a discount voucher for the entire $600.
Alaska Airlines
7.9
Good
12,953 reviews
Alaska Airlines
7.9
Good
12,953 reviews

Comfort

7.8

Entertainment

7.0

Crew

8.5

Boarding

8.1

Food

7.0

Overall

7.9

Reviews

1 / 20
2.0
Mediocre

Chris,Aug 2026

GEG - SFO

Our flight was delayed multiple times over the course of the day for a total of almost ten hours. It was supposed to be a two-hour flight from San Francisco to Spokane. It turned into a nightmare of waiting all day in the airport, not knowing whether we would fly or not, whether we would miss my son's wedding and lose the expenses already incurred for car rental and accommodations. The Alaska staff seemed clueless and never gave us any convincing or definitive information. The airline offered food vouchers and discounts on future flights to make up for the trouble. However, the information about these concessions was not timely, nor were the vouchers themselves very useful. We were a family group of four people. The airline decided to give us one food voucher for $96, which is barely enough for four to get a sandwich and a drink each. Only by persistently addressing the airport food retailers were we able to get anything at all. Then, taking the exact opposite approach, the airline sent me, the original purchaser of all four tickets and the only email account they had, four vouchers for $150 each in the names of each of the four passengers. So, any one of us could get a discount on a future flight with Alaska in that amount. But I originally paid for all the tickets. It makes no sense, except to suggest that Alaska chooses the way to distribute vouchers that seems most likely to minimize the probability that they will be utilized. In my opinion, I should be offered a total refund for the ordeal we were forced to endure or at least a discount voucher for the entire $600.
Delta
7.8
Good
8,597 reviews
Alaska Airlines
7.9
Good
12,953 reviews

Comfort

7.8

Entertainment

7.0

Crew

8.5

Boarding

8.1

Food

7.0

Overall

7.9

Reviews

1 / 20
2.0
Mediocre

Chris,Aug 2026

GEG - SFO

Our flight was delayed multiple times over the course of the day for a total of almost ten hours. It was supposed to be a two-hour flight from San Francisco to Spokane. It turned into a nightmare of waiting all day in the airport, not knowing whether we would fly or not, whether we would miss my son's wedding and lose the expenses already incurred for car rental and accommodations. The Alaska staff seemed clueless and never gave us any convincing or definitive information. The airline offered food vouchers and discounts on future flights to make up for the trouble. However, the information about these concessions was not timely, nor were the vouchers themselves very useful. We were a family group of four people. The airline decided to give us one food voucher for $96, which is barely enough for four to get a sandwich and a drink each. Only by persistently addressing the airport food retailers were we able to get anything at all. Then, taking the exact opposite approach, the airline sent me, the original purchaser of all four tickets and the only email account they had, four vouchers for $150 each in the names of each of the four passengers. So, any one of us could get a discount on a future flight with Alaska in that amount. But I originally paid for all the tickets. It makes no sense, except to suggest that Alaska chooses the way to distribute vouchers that seems most likely to minimize the probability that they will be utilized. In my opinion, I should be offered a total refund for the ordeal we were forced to endure or at least a discount voucher for the entire $600.
United Airlines
7.4
Good
10,222 reviews
Alaska Airlines
7.9
Good
12,953 reviews

Comfort

7.8

Entertainment

7.0

Crew

8.5

Boarding

8.1

Food

7.0

Overall

7.9

Reviews

1 / 20
2.0
Mediocre

Chris,Aug 2026

GEG - SFO

Our flight was delayed multiple times over the course of the day for a total of almost ten hours. It was supposed to be a two-hour flight from San Francisco to Spokane. It turned into a nightmare of waiting all day in the airport, not knowing whether we would fly or not, whether we would miss my son's wedding and lose the expenses already incurred for car rental and accommodations. The Alaska staff seemed clueless and never gave us any convincing or definitive information. The airline offered food vouchers and discounts on future flights to make up for the trouble. However, the information about these concessions was not timely, nor were the vouchers themselves very useful. We were a family group of four people. The airline decided to give us one food voucher for $96, which is barely enough for four to get a sandwich and a drink each. Only by persistently addressing the airport food retailers were we able to get anything at all. Then, taking the exact opposite approach, the airline sent me, the original purchaser of all four tickets and the only email account they had, four vouchers for $150 each in the names of each of the four passengers. So, any one of us could get a discount on a future flight with Alaska in that amount. But I originally paid for all the tickets. It makes no sense, except to suggest that Alaska chooses the way to distribute vouchers that seems most likely to minimize the probability that they will be utilized. In my opinion, I should be offered a total refund for the ordeal we were forced to endure or at least a discount voucher for the entire $600.
American Airlines
7.0
Good
12,080 reviews
Alaska Airlines
7.9
Good
12,953 reviews

Comfort

7.8

Entertainment

7.0

Crew

8.5

Boarding

8.1

Food

7.0

Overall

7.9

Reviews

1 / 20
2.0
Mediocre

Chris,Aug 2026

GEG - SFO

Our flight was delayed multiple times over the course of the day for a total of almost ten hours. It was supposed to be a two-hour flight from San Francisco to Spokane. It turned into a nightmare of waiting all day in the airport, not knowing whether we would fly or not, whether we would miss my son's wedding and lose the expenses already incurred for car rental and accommodations. The Alaska staff seemed clueless and never gave us any convincing or definitive information. The airline offered food vouchers and discounts on future flights to make up for the trouble. However, the information about these concessions was not timely, nor were the vouchers themselves very useful. We were a family group of four people. The airline decided to give us one food voucher for $96, which is barely enough for four to get a sandwich and a drink each. Only by persistently addressing the airport food retailers were we able to get anything at all. Then, taking the exact opposite approach, the airline sent me, the original purchaser of all four tickets and the only email account they had, four vouchers for $150 each in the names of each of the four passengers. So, any one of us could get a discount on a future flight with Alaska in that amount. But I originally paid for all the tickets. It makes no sense, except to suggest that Alaska chooses the way to distribute vouchers that seems most likely to minimize the probability that they will be utilized. In my opinion, I should be offered a total refund for the ordeal we were forced to endure or at least a discount voucher for the entire $600.

Related info for your journey

  • How long is the flight from Boston to Kalispell?

    A quick flight from Boston to Kalispell can take about 7h 28m. United Airlines provides one of the quickest options available for as low as $529. The distance from Boston to Kalispell is about 2110 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Boston to Kalispell round-trip?

    Our cheapest airline available from Boston to Kalispell is Alaska Airlines. Our recent data shows that you can find tickets from as low as $346 on this airline. Additional options worth looking into are American Airlines and Delta, starting at $356 and $362 round-trip. Alaska Airlines is 44% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Boston to Kalispell one-way?

    To fly one-way, consider booking your trip with Delta, which is currently one of the cheapest options available, starting at $148. American Airlines flights start at $178 while deals on United Airlines start at $189 one-way.

  • Can I find deals for flights from Boston to Kalispell that include hotel bookings?

    Yes. In addition to deals on Boston to Kalispell flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Boston to Kalispell?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boston to Kalispell.

  • Can I find deals for business class flights from Boston to Kalispell?

    Yes. Cheapflights offers flight deals from Boston to Kalispell by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Boston to Kalispell?

    Currently, May is the cheapest month in which you can book a flight from Boston to Kalispell (average of $453). Flying from Boston to Kalispell in December is currently the most expensive (average of $1,042). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Kalispell?

Book flights to Kalispell if you plan to visit one of these locations
Columbia Falls
East Glacier Park

Browse thousands of different options on Cheapflights for your next trip

Top 4 airlines flying from Boston to Kalispell

AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$346Average$548FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$356Average$587FlexibilityNo cancel feeOn-time71%
DeltaCheapest$362Average$608FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$368Average$645FlexibilityNo cancel feeOn-time69%

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