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Kalispell

$168+ 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 10/4. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — FCA
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheapflights Tip: The best prices from Boston Logan Intl to Kalispell Glacier Park are usually found in January or December, booked 90 days in advance, depart on a Tuesday or Friday and return on a Monday

Cheap 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 September 17, 2025.

Round-trip from

$337
(United Airlines)

One-way from

$168
(Hawaiian Airlines)

Popular in

July

Cheapest in

January

Average price

$504
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. 14% potential increase in price ($97 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($18 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find 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 September 17, 2025.

This United Airlines deal was found by Cheapflights users on 9/16. 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.
Thu 10/166:00 amBOS - FCA
1 stop11h 27mUnited Airlines
Thu 10/232:31 pmFCA - BOS
1 stop7h 13mUnited Airlines
Deal found 9/16$337
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Wed 10/156:00 amBOS - FCA
1 stop7h 35mUnited Airlines
Wed 10/2210:50 amFCA - BOS
2 stops12h 00mUnited Airlines
Deal found 9/15$342
This Delta deal was found by Cheapflights users on 9/16. 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.
Wed 10/225:34 amBOS - FCA
2 stops10h 55mDelta
Tue 10/285:20 amFCA - BOS
2 stops12h 50mDelta
Deal found 9/16$378
This American Airlines deal was found by Cheapflights users on 9/15. 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.
Wed 10/155:24 amBOS - FCA
1 stop9h 19mAmerican Airlines
Wed 10/221:14 pmFCA - BOS
1 stop8h 40mAmerican Airlines
Deal found 9/15$398
This United Airlines deal was found by Cheapflights users on 9/16. 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.
Wed 10/17:30 amBOS - FCA
1 stop7h 55mUnited Airlines
Sat 10/412:41 pmFCA - BOS
1 stop7h 04mUnited Airlines
Deal found 9/16$429
This American Airlines deal was found by Cheapflights users on 9/16. 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.
Wed 10/17:00 amBOS - FCA
1 stop7h 38mAmerican Airlines
Sun 10/55:23 pmFCA - BOS
1 stop21h 26mAmerican Airlines
Deal found 9/16$454
This Delta deal was found by Cheapflights users on 9/15. 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.
Sat 9/275:45 amBOS - FCA
1 stop10h 07mDelta
Sat 10/186:10 pmFCA - BOS
1 stop10h 30mDelta
Deal found 9/15$479

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 September 17, 2025.
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

Fri 1/9

3:05 pm-11:07 pm

2 stops10h 02m

Kalispell Glacier Park

Fri 1/16

6:12 pm-6:13 am

1 stop10h 01m

$342

BostonKalispell

BOS - FCA

BOSFCA

Boston Logan Intl

Wed 10/15

6:00 am-11:35 am

1 stop7h 35m

Kalispell Glacier Park

Wed 10/22

10:50 am-12:50 am

2 stops12h 00m

$342

BostonKalispell

BOS - FCA

BOSFCA

Boston Logan Intl

Wed 10/22

8:10 am-2:29 pm

1 stop8h 19m

Kalispell Glacier Park

Tue 10/28

6:10 pm-10:32 am

2 stops14h 22m

$342

BostonKalispell

BOS - FCA

BOSFCA

Boston Logan Intl

Wed 1/21

5:40 am-1:51 pm

1 stop10h 11m

Kalispell Glacier Park

Wed 1/28

3:00 pm-11:59 pm

1 stop6h 59m

$368

BostonKalispell

BOS - FCA

BOSFCA

Boston Logan Intl

Fri 1/9

5:55 pm-10:18 am

1 stop18h 23m

Kalispell Glacier Park

Fri 1/16

4:00 pm-4:46 pm

1 stop22h 46m

$386

BostonKalispell

BOS - FCA

BOSFCA

Boston Logan Intl

Wed 10/1

7:30 am-1:25 pm

1 stop7h 55m

Kalispell Glacier Park

Sat 10/4

6:30 am-6:56 pm

2 stops10h 26m

$434

BostonKalispell

BOS - FCA

BOSFCA

Boston Logan Intl

Mon 1/26

4:50 pm-1:13 pm

1 stop22h 23m

Kalispell Glacier Park

Sun 2/1

6:40 am-4:46 pm

1 stop8h 06m

$439

BostonKalispell

BOS - FCA

BOSFCA

Boston Logan Intl

Sat 10/4

6:15 am-1:52 pm

1 stop9h 37m

$168

BostonKalispell

BOS - FCA

BOSFCA

Boston Logan Intl

Sat 10/4

5:00 am-2:23 pm

2 stops11h 23m

$174

BostonKalispell

BOS - FCA

BOSFCA

Boston Logan Intl

Wed 10/1

6:00 am-1:25 pm

2 stops9h 25m

$174

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 12 results
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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 September 12, 2025.

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, October is the cheapest month in which you can book a flight from Boston to Kalispell (average of $373). Flying from Boston to Kalispell in July is currently the most expensive (average of $600). 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.

What is the cheapest time of day to fly from BOS to FCA?

Find hourly flight availability from Boston to Kalispell. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 17, 2025.

A simple way to save on the total cost of your ticket is to fly from Boston to Kalispell at noon. If you’re flexible enough to do this you can expect to save up to 24% on your trip compared to booking a flight in the afternoon.

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 September 17, 2025.
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
10,000 reviews

Entertainment

7.1

Food

7.1

Comfort

7.8

Overall

8.0

Boarding

8.1

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Food

7.1

Comfort

7.8

Overall

8.0

Boarding

8.1

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Delta
8.0
Very good
7,961 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Food

7.1

Comfort

7.8

Overall

8.0

Boarding

8.1

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Hawaiian Airlines
7.8
Good
2,729 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Food

7.1

Comfort

7.8

Overall

8.0

Boarding

8.1

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
United Airlines
7.4
Good
8,926 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Food

7.1

Comfort

7.8

Overall

8.0

Boarding

8.1

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Food

7.1

Comfort

7.8

Overall

8.0

Boarding

8.1

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.

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 7h 35m. Delta provides one of the quickest options available for as low as $342. 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 Delta. Our recent data shows that you can find tickets from as low as $312 on this airline. Additional options worth looking into are Hawaiian Airlines and American Airlines, starting at $332 and $334 round-trip. Delta is 43% 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 Hawaiian Airlines, which is currently one of the cheapest options available, starting at $168. American Airlines flights start at $174 while deals on United Airlines start at $174 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, October is the cheapest month in which you can book a flight from Boston to Kalispell (average of $373). Flying from Boston to Kalispell in July is currently the most expensive (average of $600). 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
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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$312Average$528FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$332Average$558FlexibilityNo cancel feeOn-time85%
American AirlinesCheapest$334Average$573FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$342Average$659FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$370Average$621FlexibilityNo cancel feeOn-time75%

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