$169+ 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 4/26. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — FCA
May 2 — May 91
Round-trip
1 adult, Economy
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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
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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
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Best
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Cheapest flights from Boston to KalispellExplore 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 April 2, 2026.
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 April 2, 2026.
This Delta deal was found by Cheapflights users on 4/1. 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 4/255:50 am
BOS
- FCA
1 stop9h 29m
Delta
Sat 5/22:16 pm
FCA
- BOS
1 stop7h 20m
Delta
Deal found 4/1![Delta logo]()
$297
This Alaska Airlines deal was found by Cheapflights users on 4/2. 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.
Sat 5/235:32 pm
BOS
- FCA
1 stop25h 28m
Alaska Airlines
Sat 5/304:14 pm
FCA
- BOS
1 stop12h 06m
Alaska Airlines
Deal found 4/2![Alaska Airlines logo]()
$357
This Alaska Airlines deal was found by Cheapflights users on 4/1. 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 5/126:42 pm
BOS
- FCA
1 stop18h 09m
Alaska Airlines
Tue 5/194:14 pm
FCA
- BOS
1 stop12h 07m
Alaska Airlines
Deal found 4/1![Alaska Airlines logo]()
$360
This Delta deal was found by Cheapflights users on 3/30. 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 5/161:55 pm
BOS
- FCA
2 stops11h 19m
Delta
Sat 5/236:07 pm
FCA
- BOS
1 stop10h 13m
Delta
Deal found 3/30![Delta logo]()
$362
This Delta deal was found by Cheapflights users on 3/29. 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 5/55:50 am
BOS
- FCA
1 stop10h 04m
Delta
Tue 5/126:07 pm
FCA
- BOS
1 stop10h 13m
Delta
Deal found 3/29![Delta logo]()
$363
This Delta deal was found by Cheapflights users on 3/31. 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.
Thu 5/76:10 am
BOS
- FCA
1 stop8h 29m
Delta
Mon 5/112:30 pm
FCA
- BOS
1 stop7h 24m
Delta
Deal found 3/31![Delta logo]()
$368
This United Airlines deal was found by Cheapflights users on 4/1. 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 4/157:09 am
BOS
- FCA
1 stop8h 22m
United Airlines
Sat 4/182:33 pm
FCA
- BOS
1 stop7h 26m
United Airlines
Deal found 4/1![United Airlines logo]()
$389
This Delta deal was found by Cheapflights users on 3/30. 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.
Thu 5/76:10 am
BOS
- FCA
1 stop8h 29m
Delta
Sun 5/102:30 pm
FCA
- BOS
1 stop7h 24m
Delta
Deal found 3/30![Delta logo]()
$398
Best flights from Boston to KalispellDiscover carefully curated flight deals from Boston to Kalispell that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 2, 2026.
Discover carefully curated flight deals from Boston to Kalispell that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 2, 2026.
This Delta deal was found by Cheapflights users on 3/30. 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 5/161:55 pm
BOS
- FCA
2 stops11h 19m
Delta
Sat 5/236:07 pm
FCA
- BOS
1 stop10h 13m
Delta
Deal found 3/30![Delta logo]()
$362
This United Airlines deal was found by Cheapflights users on 3/29. 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 4/147:09 am
BOS
- FCA
1 stop8h 22m
United Airlines
Sat 4/182:33 pm
FCA
- BOS
1 stop7h 26m
United Airlines
Deal found 3/29![United Airlines logo]()
$389
This Alaska Airlines deal was found by Cheapflights users on 4/2. 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.
Sat 5/166:00 am
BOS
- FCA
1 stop13h 00m
Alaska Airlines
Sat 5/234:14 pm
FCA
- BOS
1 stop12h 06m
Alaska Airlines
Deal found 4/2![Alaska Airlines logo]()
$390
This United Airlines deal was found by Cheapflights users on 4/1. 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 4/157:09 am
BOS
- FCA
1 stop8h 22m
United Airlines
Sat 4/186:00 am
FCA
- BOS
2 stops12h 54m
United Airlines
Deal found 4/1![United Airlines logo]()
$394
This Delta deal was found by Cheapflights users on 3/28. 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 5/88:10 am
BOS
- FCA
2 stops11h 17m
Delta
Tue 5/126:07 pm
FCA
- BOS
1 stop10h 13m
Delta
Deal found 3/28![Delta logo]()
$403
This Delta deal was found by Cheapflights users on 3/29. 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 4/228:20 am
BOS
- FCA
2 stops11h 10m
Delta
Mon 4/276:10 pm
FCA
- BOS
1 stop9h 50m
Delta
Deal found 3/29![Delta logo]()
$443
This Alaska Airlines deal was found by Cheapflights users on 4/2. 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 9/43:28 pm
BOS
- FCA
1 stop9h 28m
Alaska Airlines
Sun 9/61:08 pm
FCA
- BOS
1 stop15h 01m
Alaska Airlines
Deal found 4/2![Alaska Airlines logo]()
$578
This Delta deal was found by Cheapflights users on 4/2. 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.
Thu 6/112:13 pm
BOS
- FCA
2 stops11h 25m
Delta
Fri 6/196:55 am
FCA
- BOS
2 stops12h 36m
Delta
Deal found 4/2![Delta logo]()
$478
This Delta deal was found by Cheapflights users on 3/31. 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.
Mon 5/116:10 am
BOS
- FCA
1 stop8h 29m
Delta
Mon 5/186:07 pm
FCA
- BOS
2 stops13h 39m
Delta
Deal found 3/31![Delta logo]()
$484
This Delta deal was found by Cheapflights users on 3/30. 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 8/77:10 am
BOS
- FCA
1 stop9h 20m
Delta
Sat 8/1511:45 am
FCA
- BOS
1 stop8h 35m
Delta
Deal found 3/30![Delta logo]()
$574
Last-minute flights from Boston to KalispellDiscover last-minute flight deals from Boston to Kalispell. Data last updated April 2, 2026 and is based on user searches.
Discover last-minute flight deals from Boston to Kalispell. Data last updated April 2, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 4/1. 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 4/157:09 am
BOS
- FCA
1 stop8h 22m
United Airlines
Sat 4/182:33 pm
FCA
- BOS
1 stop7h 26m
United Airlines
Deal found 4/1![United Airlines logo]()
$389
This Delta deal was found by Cheapflights users on 4/1. 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 4/255:50 am
BOS
- FCA
1 stop9h 29m
Delta
Sat 5/22:16 pm
FCA
- BOS
1 stop7h 20m
Delta
Deal found 4/1![Delta logo]()
$297
This Delta deal was found by Cheapflights users on 3/29. 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 5/55:50 am
BOS
- FCA
1 stop10h 04m
Delta
Tue 5/126:07 pm
FCA
- BOS
1 stop10h 13m
Delta
Deal found 3/29![Delta logo]()
$363
This Delta deal was found by Cheapflights users on 3/31. 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.
Thu 5/76:10 am
BOS
- FCA
1 stop8h 29m
Delta
Mon 5/112:30 pm
FCA
- BOS
1 stop7h 24m
Delta
Deal found 3/31![Delta logo]()
$368
This Delta deal was found by Cheapflights users on 3/30. 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.
Thu 5/76:10 am
BOS
- FCA
1 stop8h 29m
Delta
Sun 5/102:30 pm
FCA
- BOS
1 stop7h 24m
Delta
Deal found 3/30![Delta logo]()
$398
This Alaska Airlines deal was found by Cheapflights users on 4/1. 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 5/126:42 pm
BOS
- FCA
1 stop18h 09m
Alaska Airlines
Tue 5/194:14 pm
FCA
- BOS
1 stop12h 07m
Alaska Airlines
Deal found 4/1![Alaska Airlines logo]()
$360
This Delta deal was found by Cheapflights users on 3/30. 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 5/161:55 pm
BOS
- FCA
2 stops11h 19m
Delta
Sat 5/236:07 pm
FCA
- BOS
1 stop10h 13m
Delta
Deal found 3/30![Delta logo]()
$362
This Alaska Airlines deal was found by Cheapflights users on 4/2. 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.
Sat 5/235:32 pm
BOS
- FCA
1 stop25h 28m
Alaska Airlines
Sat 5/304:14 pm
FCA
- BOS
1 stop12h 06m
Alaska Airlines
Deal found 4/2![Alaska Airlines logo]()
$357
One-way flights from Boston to KalispellSearch for one-way flight options from Boston to Kalispell. Find affordable one-way fares based on user searches. Data last updated April 2, 2026.
Search for one-way flight options from Boston to Kalispell. Find affordable one-way fares based on user searches. Data last updated April 2, 2026.
This Delta deal was found by Cheapflights users on 4/1. 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 5/295:51 am
BOS
- FCA
1 stop9h 42m
Delta
Deal found 4/1![Delta logo]()
$169
This Delta deal was found by Cheapflights users on 4/2. 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.
Sun 5/245:51 am
BOS
- FCA
1 stop9h 42m
Delta
Deal found 4/2![Delta logo]()
$179
This Kiwi.com deal was found by Cheapflights users on 4/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/912:01 pm
BOS
- FCA
3 stops25h 42m
Multiple Airlines
Deal found 4/1![Multiple Airlines logo]()
$205
This Expedia deal was found by Cheapflights users on 4/1. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/96:42 pm
BOS
- FCA
1 stop19h 21m
Alaska Airlines
Deal found 4/1![Alaska Airlines logo]()
$217
This American Airlines deal was found by Cheapflights users on 3/31. 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 8/115:29 am
BOS
- FCA
1 stop9h 05m
American Airlines
Deal found 3/31![American Airlines logo]()
$230
This United Airlines deal was found by Cheapflights users on 4/1. 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.
Fri 5/296:00 am
BOS
- FCA
3 stops12h 11m
United Airlines
Deal found 4/1![United Airlines logo]()
$234
This American Airlines deal was found by Cheapflights users on 3/31. 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 6/176:00 am
BOS
- FCA
1 stop11h 00m
American Airlines
Deal found 3/31![American Airlines logo]()
$240
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 April 2, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $297 (Delta) |
One-way from | $169 (Delta) |
Popular in | December |
Cheapest in | November |
Average price | $478 |
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 April 2, 2026.
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
Cheapest round-trip
BostonKalispell
BOS - FCA
BOSFCA
Boston Logan Intl
Sat 5/16
1:55 pm-11:14 pm
2 stops11h 19m
Kalispell Glacier Park
Sat 5/23
6:07 pm-6:20 am
1 stop10h 13m
$362
Quickest round-trip
BostonKalispell
BOS - FCA
BOSFCA
Boston Logan Intl
Tue 4/14
7:09 am-1:31 pm
1 stop8h 22m
Kalispell Glacier Park
Sat 4/18
2:33 pm-11:59 pm
1 stop7h 26m
$389
BostonKalispell
BOS - FCA
BOSFCA
Boston Logan Intl
Sat 5/16
6:00 am-5:00 pm
1 stop13h 00m
Kalispell Glacier Park
Sat 5/23
4:14 pm-6:20 am
1 stop12h 06m
$390
BostonKalispell
BOS - FCA
BOSFCA
Boston Logan Intl
Wed 4/15
7:09 am-1:31 pm
1 stop8h 22m
Kalispell Glacier Park
Sat 4/18
6:00 am-8:54 pm
2 stops12h 54m
$394
BostonKalispell
BOS - FCA
BOSFCA
Boston Logan Intl
Fri 5/8
8:10 am-5:27 pm
2 stops11h 17m
Kalispell Glacier Park
Tue 5/12
6:07 pm-6:20 am
1 stop10h 13m
$403
BostonKalispell
BOS - FCA
BOSFCA
Boston Logan Intl
Wed 4/22
8:20 am-5:30 pm
2 stops11h 10m
Kalispell Glacier Park
Mon 4/27
6:10 pm-6:00 am
1 stop9h 50m
$443
BostonKalispell
BOS - FCA
BOSFCA
Boston Logan Intl
Thu 6/11
2:13 pm-11:38 pm
2 stops11h 25m
Kalispell Glacier Park
Fri 6/19
6:55 am-9:31 pm
2 stops12h 36m
$478
BostonKalispell
BOS - FCA
BOSFCA
Boston Logan Intl
Mon 5/11
6:10 am-12:39 pm
1 stop8h 29m
Kalispell Glacier Park
Mon 5/18
6:07 pm-9:46 am
2 stops13h 39m
$484
BostonKalispell
BOS - FCA
BOSFCA
Boston Logan Intl
Fri 8/7
7:10 am-2:30 pm
1 stop9h 20m
Kalispell Glacier Park
Sat 8/15
11:45 am-10:20 pm
1 stop8h 35m
$574
BostonKalispell
BOS - FCA
BOSFCA
Boston Logan Intl
Fri 9/4
3:28 pm-10:56 pm
1 stop9h 28m
Kalispell Glacier Park
Sun 9/6
1:08 pm-6:09 am
1 stop15h 01m
$578
Showing 1-10 of 16 resultsSorted by cheapest first
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 April.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- 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.
BOS-FCA
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 April 2, 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, July is the cheapest month in which you can book a flight from Boston to Kalispell (average of $268). Flying from Boston to Kalispell in March is currently the most expensive (average of $414). 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?
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 April 2, 2026.
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.
Comfort
7.8
Boarding
8.1
Food
7.0
Crew
8.5
Entertainment
7.0
Overall
7.9
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Comfort
7.8
Boarding
8.1
Food
7.0
Crew
8.5
Entertainment
7.0
Overall
7.9
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Comfort
7.8
Boarding
8.1
Food
7.0
Crew
8.5
Entertainment
7.0
Overall
7.9
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Comfort
7.8
Boarding
8.1
Food
7.0
Crew
8.5
Entertainment
7.0
Overall
7.9
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Comfort
7.8
Boarding
8.1
Food
7.0
Crew
8.5
Entertainment
7.0
Overall
7.9
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
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.
Traveling to a place near Kalispell?
Book flights to Kalispell if you plan to visit one of these locationsColumbia Falls
East Glacier Park
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Find flights from Boston to Kalispell, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Other flights to Kalispell
Explore flights to Kalispell departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on April 2, 2026.
Boston and Kalispell flights
Browse other Boston and Kalispell flight options. Last updated on April 2, 2026.
Other flights from Boston
Browse through other flights departing from Boston. Flights are based on user searches made on Cheapflights and were last updated on April 2, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 4 airlines flying from Boston to Kalispell
Discover the top 4 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 April 2, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$300 | Average$544 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$322 | Average$511 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$335 | Average$634 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$346 | Average$603 | FlexibilityNo cancel fee | On-time75% |