$159+ Cheap flights from Kalispell to Boston (FCA - BOS)
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 4/3. Fares are subject to change and may not be available on all flights or dates of travel.
FCA — BOS
Apr 9 — Apr 161
Round-trip
1 adult, Economy
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Cheapest flights from Kalispell to BostonExplore the most affordable flight options available from Kalispell to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 10, 2026.
Explore the most affordable flight options available from Kalispell to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 10, 2026.
This Delta deal was found by Cheapflights users on 3/9. 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.
Thu 10/223:00 pm
FCA
- BOS
1 stop6h 53m
Delta
Mon 10/265:40 am
BOS
- FCA
1 stop10h 09m
Delta
Deal found 3/9![Delta logo]()
$317
This United Airlines deal was found by Cheapflights users on 3/8. 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.
Fri 5/12:33 pm
FCA
- BOS
1 stop7h 26m
United Airlines
Tue 5/59:30 am
BOS
- FCA
2 stops14h 27m
United Airlines
Deal found 3/8![United Airlines logo]()
$331
This Expedia deal was found by Cheapflights users on 3/9. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/68:26 pm
FCA
- BOS
1 stop8h 13m
Alaska Airlines
Thu 4/97:15 am
BOS
- FCA
1 stop14h 31m
Alaska Airlines
Deal found 3/9![Alaska Airlines logo]()
$337
This Alaska Airlines deal was found by Cheapflights users on 3/9. 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 9/228:00 pm
FCA
- BOS
1 stop10h 02m
Alaska Airlines
Sat 10/36:32 pm
BOS
- FCA
1 stop19h 42m
Alaska Airlines
Deal found 3/9![Alaska Airlines logo]()
$340
This Alaska Airlines deal was found by Cheapflights users on 3/9. 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.
Fri 5/296:15 am
FCA
- BOS
1 stop9h 56m
Alaska Airlines
Tue 6/24:48 pm
BOS
- FCA
1 stop9h 10m
Alaska Airlines
Deal found 3/9![Alaska Airlines logo]()
$360
This American Airlines deal was found by Cheapflights users on 3/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/261:25 pm
FCA
- BOS
1 stop19h 04m
American Airlines
Tue 6/97:00 am
BOS
- FCA
1 stop7h 35m
American Airlines
Deal found 3/8![American Airlines logo]()
$362
This Expedia deal was found by Cheapflights users on 3/6. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/512:52 pm
FCA
- BOS
1 stop15h 01m
Alaska Airlines
Thu 4/99:00 am
BOS
- FCA
1 stop12h 46m
Alaska Airlines
Deal found 3/6![Alaska Airlines logo]()
$363
This Delta deal was found by Cheapflights users on 3/8. 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.
Sat 4/46:45 pm
FCA
- BOS
1 stop9h 25m
Delta
Thu 4/95:50 am
BOS
- FCA
1 stop9h 38m
Delta
Deal found 3/8![Delta logo]()
$368
This Alaska Airlines deal was found by Cheapflights users on 3/7. 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.
Fri 4/312:52 pm
FCA
- BOS
1 stop15h 01m
Alaska Airlines
Mon 4/66:10 pm
BOS
- FCA
1 stop27h 36m
Alaska Airlines
Deal found 3/7![Alaska Airlines logo]()
$370
This Delta deal was found by Cheapflights users on 3/8. 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.
Wed 10/215:25 am
FCA
- BOS
2 stops12h 36m
Delta
Sun 10/255:40 am
BOS
- FCA
1 stop10h 09m
Delta
Deal found 3/8![Delta logo]()
$373
This Delta deal was found by Cheapflights users on 3/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/25:56 pm
FCA
- BOS
1 stop10h 14m
Delta
Wed 4/86:00 am
BOS
- FCA
2 stops19h 41m
Delta
Deal found 3/6![Delta logo]()
$376
Best flights from Kalispell to BostonDiscover carefully curated flight deals from Kalispell to Boston that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 10, 2026.
Discover carefully curated flight deals from Kalispell to Boston that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 10, 2026.
This Alaska Airlines deal was found by Cheapflights users on 3/9. 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.
Fri 5/296:15 am
FCA
- BOS
1 stop9h 56m
Alaska Airlines
Tue 6/24:48 pm
BOS
- FCA
1 stop9h 10m
Alaska Airlines
Deal found 3/9![Alaska Airlines logo]()
$360
This Delta deal was found by Cheapflights users on 3/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/46:45 pm
FCA
- BOS
1 stop9h 25m
Delta
Thu 4/95:50 am
BOS
- FCA
1 stop9h 38m
Delta
Deal found 3/6![Delta logo]()
$368
This United Airlines deal was found by Cheapflights users on 3/7. 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.
Fri 5/2912:35 pm
FCA
- BOS
2 stops9h 24m
United Airlines
Tue 6/26:00 am
BOS
- FCA
1 stop7h 29m
United Airlines
Deal found 3/7![United Airlines logo]()
$422
This Alaska Airlines deal was found by Cheapflights users on 3/9. 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 5/264:14 pm
FCA
- BOS
1 stop12h 06m
Alaska Airlines
Tue 6/96:40 pm
BOS
- FCA
1 stop19h 50m
Alaska Airlines
Deal found 3/9![Alaska Airlines logo]()
$363
This Delta deal was found by Cheapflights users on 3/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/25:56 pm
FCA
- BOS
1 stop10h 14m
Delta
Wed 4/86:00 am
BOS
- FCA
2 stops19h 41m
Delta
Deal found 3/6![Delta logo]()
$376
This Delta deal was found by Cheapflights users on 3/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/65:56 pm
FCA
- BOS
1 stop10h 14m
Delta
Wed 4/86:00 am
BOS
- FCA
2 stops19h 41m
Delta
Deal found 3/6![Delta logo]()
$376
This Delta deal was found by Cheapflights users on 3/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/46:45 pm
FCA
- BOS
1 stop9h 25m
Delta
Wed 4/86:00 am
BOS
- FCA
2 stops19h 41m
Delta
Deal found 3/6![Delta logo]()
$376
This Alaska Airlines deal was found by Cheapflights users on 3/10. 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 4/38:26 pm
FCA
- BOS
1 stop8h 13m
Alaska Airlines
Mon 4/66:10 pm
BOS
- FCA
1 stop20h 02m
Alaska Airlines
Deal found 3/10![Alaska Airlines logo]()
$441
This Alaska Airlines deal was found by Cheapflights users on 3/8. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/211:33 am
FCA
- BOS
1 stop10h 26m
Alaska Airlines
Tue 6/168:28 am
BOS
- FCA
1 stop30h 02m
Alaska Airlines
Deal found 3/8![Alaska Airlines logo]()
$470
Last-minute flights from Kalispell to BostonDiscover last-minute flight deals from Kalispell to Boston. Data last updated March 10, 2026 and is based on user searches.
Discover last-minute flight deals from Kalispell to Boston. Data last updated March 10, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 3/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/25:56 pm
FCA
- BOS
1 stop10h 14m
Delta
Wed 4/86:00 am
BOS
- FCA
2 stops19h 41m
Delta
Deal found 3/6![Delta logo]()
$376
This Alaska Airlines deal was found by Cheapflights users on 3/7. 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.
Fri 4/312:52 pm
FCA
- BOS
1 stop15h 01m
Alaska Airlines
Mon 4/66:10 pm
BOS
- FCA
1 stop27h 36m
Alaska Airlines
Deal found 3/7![Alaska Airlines logo]()
$370
This Delta deal was found by Cheapflights users on 3/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/35:56 pm
FCA
- BOS
1 stop10h 14m
Delta
Thu 4/95:50 am
BOS
- FCA
1 stop9h 38m
Delta
Deal found 3/6![Delta logo]()
$419
This Delta deal was found by Cheapflights users on 3/8. 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.
Sat 4/46:45 pm
FCA
- BOS
1 stop9h 25m
Delta
Wed 4/85:50 am
BOS
- FCA
1 stop9h 38m
Delta
Deal found 3/8![Delta logo]()
$317
This Delta deal was found by Cheapflights users on 3/8. 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.
Sat 4/46:45 pm
FCA
- BOS
1 stop9h 25m
Delta
Thu 4/95:50 am
BOS
- FCA
1 stop9h 38m
Delta
Deal found 3/8![Delta logo]()
$368
This Expedia deal was found by Cheapflights users on 3/8. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/512:52 pm
FCA
- BOS
1 stop15h 01m
Alaska Airlines
Thu 4/97:15 am
BOS
- FCA
1 stop14h 31m
Alaska Airlines
Deal found 3/8![Alaska Airlines logo]()
$340
This Alaska Airlines deal was found by Cheapflights users on 3/8. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/58:26 pm
FCA
- BOS
1 stop8h 13m
Alaska Airlines
Wed 4/87:15 am
BOS
- FCA
1 stop18h 32m
Alaska Airlines
Deal found 3/8![Alaska Airlines logo]()
$413
This Expedia deal was found by Cheapflights users on 3/9. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/68:26 pm
FCA
- BOS
1 stop8h 13m
Alaska Airlines
Thu 4/97:15 am
BOS
- FCA
1 stop14h 31m
Alaska Airlines
Deal found 3/9![Alaska Airlines logo]()
$337
One-way flights from Kalispell to BostonSearch for one-way flight options from Kalispell to Boston. Find affordable one-way fares based on user searches. Data last updated March 10, 2026.
Search for one-way flight options from Kalispell to Boston. Find affordable one-way fares based on user searches. Data last updated March 10, 2026.
This Delta deal was found by Cheapflights users on 3/8. 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.
Fri 4/35:56 pm
FCA
- BOS
1 stop10h 14m
Delta
Deal found 3/8![Delta logo]()
$159
This Delta deal was found by Cheapflights users on 3/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/222:49 pm
FCA
- BOS
1 stop6h 46m
Delta
Deal found 3/5![Delta logo]()
$200
This Delta deal was found by Cheapflights users on 3/9. 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.
Fri 4/105:56 pm
FCA
- BOS
1 stop10h 14m
Delta
Deal found 3/9![Delta logo]()
$210
This Kiwi.com deal was found by Cheapflights users on 3/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/171:33 pm
FCA
- BOS
2 stops33h 58m
Multiple Airlines
Deal found 3/9![Multiple Airlines logo]()
$222
This United Airlines deal was found by Cheapflights users on 3/9. 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.
Thu 4/162:33 pm
FCA
- BOS
1 stop7h 26m
United Airlines
Deal found 3/9![United Airlines logo]()
$230
This United Airlines deal was found by Cheapflights users on 3/6. 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.
Wed 4/16:00 am
FCA
- BOS
2 stops13h 54m
United Airlines
Deal found 3/6![United Airlines logo]()
$243
This United Airlines deal was found by Cheapflights users on 3/9. 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.
Wed 3/252:41 pm
FCA
- BOS
1 stop7h 12m
United Airlines
Deal found 3/9![United Airlines logo]()
$253
This United Airlines deal was found by Cheapflights users on 3/8. 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.
Fri 4/36:00 am
FCA
- BOS
2 stops13h 54m
United Airlines
Deal found 3/8![United Airlines logo]()
$255
This Trip.com deal was found by Cheapflights users on 3/9. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/226:35 am
FCA
- BOS
2 stops14h 50m
Multiple Airlines
Deal found 3/9![Multiple Airlines logo]()
$256
This Alaska Airlines deal was found by Cheapflights users on 3/7. 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.
Fri 4/312:52 pm
FCA
- BOS
2 stops33h 07m
Alaska Airlines
Deal found 3/7![Alaska Airlines logo]()
$263
This Delta deal was found by Cheapflights users on 3/8. 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.
Mon 5/116:07 pm
FCA
- BOS
2 stops11h 28m
Delta
Deal found 3/8![Delta logo]()
$278
Find flight deals from Kalispell to Boston
Discover tips and strategies to find the most affordable flight options for your journey from Kalispell (FCA) to Boston (BOS). 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 March 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $317 (Delta) |
One-way from | $159 (Delta) |
Popular in | July |
Cheapest in | April |
Cheapflights Fare Finder
Customize your flight search to find flights from Kalispell to Boston 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 March 10, 2026.
Use the filters below to find and compare flights from Kalispell to Boston that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
KalispellBoston
FCA - BOS
FCABOS
Kalispell Glacier Park
Fri 5/29
6:15 am-6:11 pm
1 stop9h 56m
Boston Logan Intl
Tue 6/2
4:48 pm-11:58 pm
1 stop9h 10m
$360
KalispellBoston
FCA - BOS
FCABOS
Kalispell Glacier Park
Tue 5/26
4:14 pm-6:20 am
1 stop12h 06m
Boston Logan Intl
Tue 6/9
6:40 pm-12:30 pm
1 stop19h 50m
$363
KalispellBoston
FCA - BOS
FCABOS
Kalispell Glacier Park
Sat 4/4
6:45 pm-6:10 am
1 stop9h 25m
Boston Logan Intl
Thu 4/9
5:50 am-1:28 pm
1 stop9h 38m
$368
KalispellBoston
FCA - BOS
FCABOS
Kalispell Glacier Park
Thu 4/2
5:56 pm-6:10 am
1 stop10h 14m
Boston Logan Intl
Wed 4/8
6:00 am-11:41 pm
2 stops19h 41m
$376
KalispellBoston
FCA - BOS
FCABOS
Kalispell Glacier Park
Mon 4/6
5:56 pm-6:10 am
1 stop10h 14m
Boston Logan Intl
Wed 4/8
6:00 am-11:41 pm
2 stops19h 41m
$376
KalispellBoston
FCA - BOS
FCABOS
Kalispell Glacier Park
Sat 4/4
6:45 pm-6:10 am
1 stop9h 25m
Boston Logan Intl
Wed 4/8
6:00 am-11:41 pm
2 stops19h 41m
$376
Quickest round-trip
KalispellBoston
FCA - BOS
FCABOS
Kalispell Glacier Park
Fri 5/29
12:35 pm-11:59 pm
2 stops9h 24m
Boston Logan Intl
Tue 6/2
6:00 am-11:29 am
1 stop7h 29m
$422
KalispellBoston
FCA - BOS
FCABOS
Kalispell Glacier Park
Fri 4/3
8:26 pm-6:39 am
1 stop8h 13m
Boston Logan Intl
Mon 4/6
6:10 pm-12:12 pm
1 stop20h 02m
$441
KalispellBoston
FCA - BOS
FCABOS
Kalispell Glacier Park
Tue 6/2
11:33 am-11:59 pm
1 stop10h 26m
Boston Logan Intl
Tue 6/16
8:28 am-12:30 pm
1 stop30h 02m
$470
Cheapest one-way
Quickest one-way
KalispellBoston
FCA - BOS
FCABOS
Kalispell Glacier Park
Wed 4/22
2:49 pm-11:35 pm
1 stop6h 46m
$159
Showing 1-10 of 18 resultsSorted by cheapest first
Compare providers for flights from Kalispell to Boston
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 Kalispell to Boston in March.
| 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 Kalispell-Boston flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Kalispell-Boston flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Kalispell-Boston flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Kalispell-Boston 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 Kalispell-Boston 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 Kalispell to Boston
Have a flexible travel schedule? Discover the best time to fly to Boston from Kalispell with our price prediction graph.
FCA-BOS
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 Kalispell to Boston
Reviews of airlines servicing Boston
Get insights into the airlines that provide service to Boston. 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 Boston. Reviews last updated March 10, 2026.
Peruse reviews from past customers who have flown with Alaska Airlines,Delta, andUnited Airlines from Kalispell to Boston 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.
Entertainment
7.0
Food
7.1
Overall
8.0
Boarding
8.1
Crew
8.5
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Entertainment
7.0
Food
7.1
Overall
8.0
Boarding
8.1
Crew
8.5
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Entertainment
7.0
Food
7.1
Overall
8.0
Boarding
8.1
Crew
8.5
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Entertainment
7.0
Food
7.1
Overall
8.0
Boarding
8.1
Crew
8.5
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Entertainment
7.0
Food
7.1
Overall
8.0
Boarding
8.1
Crew
8.5
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Related info for your journey
Find useful and relevant information for your journey from Kalispell to Boston. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Top 4 airlines flying from Kalispell to Boston
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| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$286 | Average$498 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$388 | Average$582 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$396 | Average$694 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$405 | Average$614 | FlexibilityNo cancel fee | On-time71% |