HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Kalispell

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

BOS — FCA
Dec 5 — Dec 121
Sat 12/5
Sat 12/12
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Boston to Kalispell with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Boston to Kalispell

Cheapest flights from Boston to Kalispell

Thu 12/37:30 am -
1 stop8h 06m
Thu 12/106:15 am -
1 stop7h 16m
Deal found 11/3$399
Fri 12/411:00 am -
1 stop8h 36m
Thu 12/105:10 am -
2 stops11h 48m
Deal found 11/4$414
Mon 12/147:30 am -
1 stop8h 06m
Fri 12/182:45 pm -
1 stop7h 14m
Deal found 10/31$425
Sun 12/135:35 am -
1 stop9h 31m
Fri 12/1812:28 pm -
1 stop9h 45m
Deal found 11/3$429
Tue 11/1711:00 am -
1 stop8h 37m
Tue 12/16:16 pm -
1 stop10h 03m
Deal found 11/3$439
Tue 11/177:15 am -
1 stop9h 25m
Sat 11/213:35 pm -
1 stop6h 09m
Deal found 11/2$479
Sun 12/137:30 am -
1 stop8h 06m
Fri 12/181:36 pm -
2 stops14h 18m
Deal found 11/3$483

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
(Travelocity)

Popular in

December

Cheapest in

May

Average price

$543
Provider with most accurate pricing for Boston Logan Intl-Kalispell Glacier Park flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boston Logan Intl-Kalispell Glacier Park flights.
Search Deals
From Boston Logan Intl to Kalispell Glacier Park
Search Deals
One-way flight from Boston Logan Intl to Kalispell Glacier Park
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($70 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($38 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2026
Search Deals

Cheapflights Fare Finder

 
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

Cheapest round-trip

BostonKalispell

BOS Boston Logan Intl - FCA Kalispell Glacier Park

BOSFCA

Boston Logan Intl

Thu 12/17

6:00 am-1:28 pm

1 stop9h 28m

Kalispell Glacier Park

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$230

BostonKalispell

BOS Boston Logan Intl - FCA Kalispell Glacier Park

BOSFCA

Boston Logan Intl

Thu 12/17

8:28 am-10:54 am

3 stops28h 26m

Kalispell Glacier Park

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$328

BostonKalispell

BOS Boston Logan Intl - FCA Kalispell Glacier Park

BOSFCA

Boston Logan Intl

Fri 12/18

12:06 pm-8:06 pm

1 stop10h 00m

Kalispell Glacier Park

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$380

BostonKalispell

BOS Boston Logan Intl - FCA Kalispell Glacier Park

BOSFCA

Boston Logan Intl

Tue 11/24

5:30 am-1:34 pm

2 stops10h 04m

Kalispell Glacier Park

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$407

BostonKalispell

BOS Boston Logan Intl - FCA Kalispell Glacier Park

BOSFCA

Boston Logan Intl

Sat 12/19

10:25 am-9:52 am

2 stops25h 27m

Kalispell Glacier Park

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$430

BostonKalispell

BOS Boston Logan Intl - FCA Kalispell Glacier Park

BOSFCA

Boston Logan Intl

Thu 12/17

6:05 am-5:36 pm

2 stops13h 31m

Kalispell Glacier Park

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$468
Quickest round-trip

BostonKalispell

BOS Boston Logan Intl - FCA Kalispell Glacier Park

BOSFCA

Boston Logan Intl

Sat 12/19

3:30 pm-10:51 pm

1 stop9h 21m

Kalispell Glacier Park

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$480

BostonKalispell

BOS Boston Logan Intl - FCA Kalispell Glacier Park

BOSFCA

Boston Logan Intl

Wed 11/25

2:59 pm-10:45 pm

2 stops9h 46m

Kalispell Glacier Park

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$495

BostonKalispell

BOS Boston Logan Intl - FCA Kalispell Glacier Park

BOSFCA

Boston Logan Intl

Mon 3/1

1:22 pm-9:59 pm

2 stops10h 37m

Kalispell Glacier Park

Tue 3/9

6:31 am-7:38 pm

2 stops11h 07m

$529

BostonKalispell

BOS Boston Logan Intl - FCA Kalispell Glacier Park

BOSFCA

Boston Logan Intl

Wed 12/9

6:00 am-1:36 pm

2 stops9h 36m

Kalispell Glacier Park

Sat 12/12

6:15 am-9:53 pm

2 stops13h 38m

$579

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/4

Showing 1-10 of 18 resultsSorted by cheapest first
1
2

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 November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy2 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 $439). 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.

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
13,140 reviews

Crew

8.5

Boarding

8.1

Food

7.0

Overall

7.9

Comfort

7.8

Entertainment

7.0

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
13,140 reviews
Alaska Airlines
7.9
Good
13,140 reviews

Crew

8.5

Boarding

8.1

Food

7.0

Overall

7.9

Comfort

7.8

Entertainment

7.0

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
8,698 reviews
Alaska Airlines
7.9
Good
13,140 reviews

Crew

8.5

Boarding

8.1

Food

7.0

Overall

7.9

Comfort

7.8

Entertainment

7.0

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
7.3
Good
10,461 reviews
Alaska Airlines
7.9
Good
13,140 reviews

Crew

8.5

Boarding

8.1

Food

7.0

Overall

7.9

Comfort

7.8

Entertainment

7.0

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
12,228 reviews
Alaska Airlines
7.9
Good
13,140 reviews

Crew

8.5

Boarding

8.1

Food

7.0

Overall

7.9

Comfort

7.8

Entertainment

7.0

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 10h. United Airlines provides one of the quickest options available for as low as $609. 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 $168. 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 $439). 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$614FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$368Average$648FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.