$190+ Cheap flights from Boston to Kalispell (BOS - FCA)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/1. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — FCA
Oct 9 — Oct 161
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
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
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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 September 9, 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 September 9, 2026.
This American Airlines deal was found by Cheapflights users on 9/7. 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.
Sat 10/175:54 am -
1 stop9h 33m
Sat 10/241:58 pm -
1 stop7h 38m
Deal found 9/7![American Airlines logo]()
$379
This United Airlines deal was found by Cheapflights users on 9/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/156:00 am -
1 stop7h 28m
Thu 10/292:36 pm -
1 stop7h 14m
Deal found 9/8![United Airlines logo]()
$399
This American Airlines deal was found by Cheapflights users on 9/4. 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 10/147:00 am -
1 stop8h 42m
Sun 10/181:58 pm -
1 stop7h 38m
Deal found 9/4![American Airlines logo]()
$409
This United Airlines deal was found by Cheapflights users on 9/4. 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 11/31:29 pm -
2 stops10h 22m
Tue 11/106:14 am -
2 stops11h 00m
Deal found 9/4![United Airlines logo]()
$431
This United Airlines deal was found by Cheapflights users on 9/5. 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.
Sat 9/266:00 am -
1 stop7h 28m
Tue 10/610:45 am -
2 stops12h 09m
Deal found 9/5![United Airlines logo]()
$443
This United Airlines deal was found by Cheapflights users on 9/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/46:00 am -
1 stop7h 28m
Sat 10/1010:45 am -
2 stops12h 09m
Deal found 9/8![United Airlines logo]()
$458
This Delta deal was found by Cheapflights users on 9/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/166:05 am -
1 stop7h 42m
Sat 10/36:00 pm -
1 stop10h 30m
Deal found 9/9![Delta logo]()
$469
This United Airlines deal was found by Cheapflights users on 9/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/226:00 am -
1 stop7h 28m
Mon 10/266:14 am -
2 stops11h 00m
Deal found 9/8![United Airlines logo]()
$473
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Sat 9/197:45 am -
1 stop9h 36m
Sat 10/312:26 pm -
2 stops9h 33m
Deal found 9/9![United Airlines logo]()
$474
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 September 9, 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 September 9, 2026.
This United Airlines deal was found by Cheapflights users on 9/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/227:45 am -
1 stop7h 43m
Mon 10/262:36 pm -
1 stop7h 14m
Deal found 9/8![United Airlines logo]()
$399
This American Airlines deal was found by Cheapflights users on 9/4. 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 10/147:00 am -
1 stop8h 42m
Sun 10/181:58 pm -
1 stop7h 38m
Deal found 9/4![American Airlines logo]()
$409
This United Airlines deal was found by Cheapflights users on 9/4. 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 11/37:15 am -
1 stop8h 19m
Tue 11/106:14 am -
2 stops13h 45m
Deal found 9/4![United Airlines logo]()
$404
This United Airlines deal was found by Cheapflights users on 9/6. 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.
Sat 12/55:45 am -
2 stops9h 48m
Sat 12/126:15 am -
2 stops9h 43m
Deal found 9/6![United Airlines logo]()
$409
This United Airlines deal was found by Cheapflights users on 9/7. 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.
Sat 10/176:00 am -
2 stops9h 28m
Sat 10/2412:26 pm -
2 stops9h 33m
Deal found 9/7![United Airlines logo]()
$479
This United Airlines deal was found by Cheapflights users on 9/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/246:00 am -
1 stop7h 28m
Wed 10/282:36 pm -
1 stop7h 14m
Deal found 9/8![United Airlines logo]()
$489
Last-minute flights from Boston to KalispellDiscover last-minute flight deals from Boston to Kalispell. Data last updated September 9, 2026 and is based on user searches.
Discover last-minute flight deals from Boston to Kalispell. Data last updated September 9, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 9/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/166:05 am -
1 stop7h 42m
Sat 10/36:00 pm -
1 stop10h 30m
Deal found 9/9![Delta logo]()
$469
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Sat 9/197:45 am -
1 stop9h 36m
Sat 10/312:26 pm -
2 stops9h 33m
Deal found 9/9![United Airlines logo]()
$474
This United Airlines deal was found by Cheapflights users on 9/5. 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.
Sat 9/266:00 am -
1 stop7h 28m
Tue 10/610:45 am -
2 stops12h 09m
Deal found 9/5![United Airlines logo]()
$443
This United Airlines deal was found by Cheapflights users on 9/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/46:00 am -
1 stop7h 28m
Sat 10/1010:45 am -
2 stops12h 09m
Deal found 9/8![United Airlines logo]()
$458
This American Airlines deal was found by Cheapflights users on 9/4. 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 10/147:00 am -
1 stop8h 42m
Sun 10/181:58 pm -
1 stop7h 38m
Deal found 9/4![American Airlines logo]()
$409
This United Airlines deal was found by Cheapflights users on 9/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/156:00 am -
1 stop7h 28m
Thu 10/292:36 pm -
1 stop7h 14m
Deal found 9/8![United Airlines logo]()
$399
This American Airlines deal was found by Cheapflights users on 9/7. 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.
Sat 10/175:54 am -
1 stop9h 33m
Sat 10/241:58 pm -
1 stop7h 38m
Deal found 9/7![American Airlines logo]()
$379
This United Airlines deal was found by Cheapflights users on 9/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/226:00 am -
1 stop7h 28m
Mon 10/266:14 am -
2 stops11h 00m
Deal found 9/8![United Airlines logo]()
$473
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 September 9, 2026.
Search for one-way flight options from Boston to Kalispell. Find affordable one-way fares based on user searches. Data last updated September 9, 2026.
This American Airlines deal was found by Cheapflights users on 9/7. 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.
Thu 10/17:00 am -
1 stop7h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![American Airlines logo]()
$190
This United Airlines deal was found by Cheapflights users on 9/9. 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 10/612:45 pm -
2 stops10h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![United Airlines logo]()
$195
This Delta deal was found by Cheapflights users on 9/7. 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 10/67:27 am -
1 stop9h 14m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Delta logo]()
$200
This United Airlines deal was found by Cheapflights users on 9/7. 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 10/289:30 am -
2 stops14h 21m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![United Airlines logo]()
$205
This American Airlines deal was found by Cheapflights users on 9/7. 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.
Sun 10/255:54 am -
1 stop9h 33m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![American Airlines logo]()
$221
This American Airlines deal was found by Cheapflights users on 9/5. 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.
Sun 9/206:02 am -
1 stop10h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![American Airlines logo]()
$230
This United Airlines deal was found by Cheapflights users on 9/6. 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 10/27:01 am -
2 stops17h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![United Airlines logo]()
$260
This Alaska Airlines deal was found by Cheapflights users on 9/7. 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.
Sun 2/215:06 pm -
1 stop22h 14m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Alaska Airlines logo]()
$275
This American Airlines deal was found by Cheapflights users on 9/5. 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.
Thu 9/176:02 am -
1 stop10h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![American Airlines logo]()
$280
This Delta deal was found by Cheapflights users on 9/7. 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 9/146:35 pm -
1 stop7h 08m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Delta logo]()
$290
This deal was found by Cheapflights users on 9/5. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/206:00 am -
1 stop7h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![United Airlines logo]()
$295
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 September 9, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $379 (American Airlines) |
One-way from | $190 (American Airlines) |
Popular in | December |
Cheapest in | November |
Average price | $527 |
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 7,457,451 searches. Data last updated September 9, 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 Boston Logan Intl - FCA Kalispell Glacier Park
BOSFCA
Boston Logan Intl
Wed 10/28
7:00 am-1:27 pm
1 stop8h 27m
Kalispell Glacier Park
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$190
BostonKalispell
BOS Boston Logan Intl - FCA Kalispell Glacier Park
BOSFCA
Boston Logan Intl
Fri 10/2
7:02 am-2:33 pm
1 stop9h 31m
Kalispell Glacier Park
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$190
BostonKalispell
BOS Boston Logan Intl - FCA Kalispell Glacier Park
BOSFCA
Boston Logan Intl
Tue 10/6
7:00 am-1:27 pm
1 stop8h 27m
Kalispell Glacier Park
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$190
BostonKalispell
BOS Boston Logan Intl - FCA Kalispell Glacier Park
BOSFCA
Boston Logan Intl
Tue 10/6
12:45 pm-9:36 pm
2 stops10h 51m
Kalispell Glacier Park
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$195
BostonKalispell
BOS Boston Logan Intl - FCA Kalispell Glacier Park
BOSFCA
Boston Logan Intl
Fri 9/18
6:00 am-12:44 pm
1 stop8h 44m
Kalispell Glacier Park
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$280
Quickest round-trip
BostonKalispell
BOS Boston Logan Intl - FCA Kalispell Glacier Park
BOSFCA
Boston Logan Intl
Fri 9/18
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
Tue 9/22
7:45 am-3:54 pm
1 stop10h 09m
Kalispell Glacier Park
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$295
BostonKalispell
BOS Boston Logan Intl - FCA Kalispell Glacier Park
BOSFCA
Boston Logan Intl
Mon 10/5
9:23 am-9:36 pm
2 stops14h 13m
Kalispell Glacier Park
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$300
BostonKalispell
BOS Boston Logan Intl - FCA Kalispell Glacier Park
BOSFCA
Boston Logan Intl
Thu 10/1
9:51 am-9:36 pm
2 stops13h 45m
Kalispell Glacier Park
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$300
BostonKalispell
BOS Boston Logan Intl - FCA Kalispell Glacier Park
BOSFCA
Boston Logan Intl
Sun 9/20
5:45 am-3:54 pm
2 stops12h 09m
Kalispell Glacier Park
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$300
Showing 1-10 of 17 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 September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | 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?
To ensure you get the cheapest price possible for a flight from Boston to Kalispell, you should look to book at least 83 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, November is the cheapest month in which you can book a flight from Boston to Kalispell (average of $423). 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 below average for this route at the moment.
Boston to Kalispell flights typically cost between $397 and $588 in October.The cheapest round-trip price found within the last 5 days was $379 on American Airlines (Oct 17-Oct 24).
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 9, 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.
Food
7.0
Comfort
7.8
Crew
8.5
Entertainment
7.0
Boarding
8.1
Overall
7.9
Reviews
1 / 20
2.0
MediocreChris,Aug 2026
GEG - SFO
Food
7.0
Comfort
7.8
Crew
8.5
Entertainment
7.0
Boarding
8.1
Overall
7.9
Reviews
1 / 20
2.0
MediocreChris,Aug 2026
GEG - SFO
Food
7.0
Comfort
7.8
Crew
8.5
Entertainment
7.0
Boarding
8.1
Overall
7.9
Reviews
1 / 20
2.0
MediocreChris,Aug 2026
GEG - SFO
Food
7.0
Comfort
7.8
Crew
8.5
Entertainment
7.0
Boarding
8.1
Overall
7.9
Reviews
1 / 20
2.0
MediocreChris,Aug 2026
GEG - SFO
Food
7.0
Comfort
7.8
Crew
8.5
Entertainment
7.0
Boarding
8.1
Overall
7.9
Reviews
1 / 20
2.0
MediocreChris,Aug 2026
GEG - SFO
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
Browse thousands of different options on Cheapflights for your next trip
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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 September 9, 2026.
Boston and Kalispell flights
Browse other Boston and Kalispell flight options. Last updated on September 9, 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 September 9, 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 7,457,451 searches. Data last updated September 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$316 | Average$632 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$346 | Average$558 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$356 | Average$587 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$362 | Average$611 | FlexibilityNo cancel fee | On-timeN/A |