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Kalispell

$149+ Cheap flights from Boston to Kalispell (BOS - FCA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/18. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — FCA
Mar 14 — Mar 211
Sat 3/14
Sat 3/21
1 adult, Economy
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Cheap flight deals from Boston to Kalispell

Cheapest flights from Boston to Kalispell
Explore the most affordable flight options available from Boston to Kalispell. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 12, 2026.

This Delta deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/75:50 am
BOS
-
FCA
1 stop9h 38m
Delta
Tue 4/146:10 pm
FCA
-
BOS
1 stop9h 50m
Delta
Deal found 2/8$297
This Delta deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/18:05 am
BOS
-
FCA
1 stop7h 49m
Delta
Fri 5/86:13 pm
FCA
-
BOS
1 stop10h 08m
Delta
Deal found 2/11$313
This Alaska Airlines deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/84:25 pm
BOS
-
FCA
1 stop9h 34m
Alaska Airlines
Tue 9/1512:51 pm
FCA
-
BOS
1 stop9h 14m
Alaska Airlines
Deal found 2/9$329
This Alaska Airlines deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/146:32 pm
BOS
-
FCA
1 stop19h 42m
Alaska Airlines
Fri 9/1812:51 pm
FCA
-
BOS
1 stop9h 14m
Alaska Airlines
Deal found 2/11$338
This United Airlines deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/711:00 am
BOS
-
FCA
2 stops12h 27m
United Airlines
Tue 4/142:33 pm
FCA
-
BOS
1 stop7h 26m
United Airlines
Deal found 2/10$356
This Travelocity deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/266:00 am
BOS
-
FCA
1 stop9h 20m
Alaska Airlines
Tue 9/12:10 pm
FCA
-
BOS
1 stop7h 55m
Alaska Airlines
Deal found 2/11$361
This Alaska Airlines deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/114:25 pm
BOS
-
FCA
1 stop9h 34m
Alaska Airlines
Tue 9/1512:51 pm
FCA
-
BOS
1 stop9h 14m
Alaska Airlines
Deal found 2/10$370
This United Airlines deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/96:00 am
BOS
-
FCA
1 stop11h 17m
United Airlines
Tue 6/1612:35 pm
FCA
-
BOS
1 stop8h 41m
United Airlines
Deal found 2/9$379
This American Airlines deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/95:05 am
BOS
-
FCA
1 stop9h 30m
American Airlines
Tue 6/161:25 pm
FCA
-
BOS
1 stop8h 34m
American Airlines
Deal found 2/10$384

Find flight deals from Boston to Kalispell

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to Kalispell (FCA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 12, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$297
(Delta)

One-way from

$149
(Delta)

Popular in

December

Cheapest in

November

Average price

$706
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. 12% potential increase in price ($88 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($40 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boston to Kalispell 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, Cheapflights users made 2,558,603 searches. Data last updated February 12, 2026.
Use the filters below to find and compare flights from Boston to Kalispell that are best for you.

Fly from

Boston

Fly to

Kalispell

Route

Depart

Return

Price

BostonKalispell

BOS - FCA

BOSFCA

Boston Logan Intl

Tue 4/7

5:50 am-1:28 pm

1 stop9h 38m

Kalispell Glacier Park

Tue 4/14

6:10 pm-6:00 am

1 stop9h 50m

$297

BostonKalispell

BOS - FCA

BOSFCA

Boston Logan Intl

Fri 5/1

8:05 am-1:54 pm

1 stop7h 49m

Kalispell Glacier Park

Fri 5/8

6:13 pm-6:21 am

1 stop10h 08m

$313

BostonKalispell

BOS - FCA

BOSFCA

Boston Logan Intl

Tue 4/7

11:00 am-9:27 pm

2 stops12h 27m

Kalispell Glacier Park

Tue 4/14

2:33 pm-11:59 pm

1 stop7h 26m

$356

BostonKalispell

BOS - FCA

BOSFCA

Boston Logan Intl

Sat 5/9

4:33 pm-1:03 pm

2 stops22h 30m

Kalispell Glacier Park

Tue 5/12

1:43 pm-11:59 pm

1 stop8h 16m

$397

BostonKalispell

BOS - FCA

BOSFCA

Boston Logan Intl

Wed 3/18

5:50 am-1:28 pm

1 stop9h 38m

$149

BostonKalispell

BOS - FCA

BOSFCA

Boston Logan Intl

Sat 3/21

5:15 pm-11:41 pm

1 stop8h 26m

$149

BostonKalispell

BOS - FCA

BOSFCA

Boston Logan Intl

Thu 3/19

8:05 am-1:28 pm

1 stop7h 23m

$149

BostonKalispell

BOS - FCA

BOSFCA

Boston Logan Intl

Sun 3/22

5:50 am-1:28 pm

1 stop9h 38m

$149

BostonKalispell

BOS - FCA

BOSFCA

Boston Logan Intl

Tue 5/12

5:55 am-1:33 pm

1 stop9h 38m

$154

BostonKalispell

BOS - FCA

BOSFCA

Boston Logan Intl

Wed 3/18

5:45 am-10:08 am

3 stops30h 23m

$201

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/11

Compare providers for flights from Boston to Kalispell

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boston to Kalispell in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
MytripPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust 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
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

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?

Use this chart to determine the optimal time to book a round-trip flight from Boston to Kalispell. Price data was last updated on February 6, 2026.

To ensure you get the cheapest price possible for a flight from Boston to Kalispell, you should look to book at least 90 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 $230). Flying from Boston to Kalispell in December is currently the most expensive (average of $396). 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

Get insights into the airlines that provide service to Kalispell. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Kalispell. Reviews last updated February 12, 2026.
Peruse reviews from past customers who have flown with Alaska Airlines, Delta, and Hawaiian 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
8.0
Very good
11,878 reviews

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

robert,Feb 2026

LAS - SAN

The good customer service team made you fell welcome on the flight.
Alaska Airlines
8.0
Very good
11,878 reviews
Alaska Airlines
8.0
Very good
11,878 reviews

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

robert,Feb 2026

LAS - SAN

The good customer service team made you fell welcome on the flight.
Delta
7.9
Good
8,181 reviews
Alaska Airlines
8.0
Very good
11,878 reviews

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

robert,Feb 2026

LAS - SAN

The good customer service team made you fell welcome on the flight.
Hawaiian Airlines
7.8
Good
2,833 reviews
Alaska Airlines
8.0
Very good
11,878 reviews

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

robert,Feb 2026

LAS - SAN

The good customer service team made you fell welcome on the flight.
United Airlines
7.4
Good
9,279 reviews
Alaska Airlines
8.0
Very good
11,878 reviews

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

robert,Feb 2026

LAS - SAN

The good customer service team made you fell welcome on the flight.
American Airlines
7.2
Good
11,271 reviews
Alaska Airlines
8.0
Very good
11,878 reviews

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

robert,Feb 2026

LAS - SAN

The good customer service team made you fell welcome on the flight.

Related info for your journey

Find useful and relevant information for your journey from Boston to Kalispell. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Boston to Kalispell?

    A quick flight from Boston to Kalispell can take about 9h 38m. Delta provides one of the quickest options available for as low as $297. 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 Hawaiian Airlines. Our recent data shows that you can find tickets from as low as $260 on this airline. Additional options worth looking into are Delta and American Airlines, starting at $312 and $326 round-trip. Hawaiian Airlines is 55% 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 $158 while deals on United Airlines start at $158 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 $230). Flying from Boston to Kalispell in December is currently the most expensive (average of $396). 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

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Top 5 airlines flying from Boston to Kalispell

Discover the top 5 airlines that operate flights from Boston to Kalispell. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 12, 2026.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$260Average$558FlexibilityNo cancel feeOn-time85%
DeltaCheapest$312Average$551FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$326Average$524FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$330Average$662FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$378Average$619FlexibilityNo cancel feeOn-time75%

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