$159 Cheap United flights Boston (BOS) to Kalispell (FCA)

View $159 flight on Tue, Jul 22, 2025Opens in a new window

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$159 Cheap United flights Boston (BOS) to Kalispell (FCA)

Prices were available within the past 7 days and start at $159 for one-way flights and $317 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Thu, Oct 16 - Wed, Oct 22
BOS
Boston
FCA
Kalispell
$317 Roundtrip, found 8 hours ago
$317
Roundtrip
found 8 hours ago
Select United flight, departing Thu, Oct 16 from Boston to Kalispell, returning Wed, Oct 22, priced at $317 found 8 hours ago
United
Tue, Sep 2 - Tue, Sep 9
BOS
Boston
FCA
Kalispell
$320 Roundtrip, found 2 hours ago
$320
Roundtrip
found 2 hours ago
Select United flight, departing Tue, Sep 2 from Boston to Kalispell, returning Tue, Sep 9, priced at $320 found 2 hours ago
United
Thu, Oct 16 - Wed, Oct 22
BOS
Boston
FCA
Kalispell
$322 Roundtrip, found 8 hours ago
$322
Roundtrip
found 8 hours ago
Select United flight, departing Thu, Oct 16 from Boston to Kalispell, returning Wed, Oct 22, priced at $322 found 8 hours ago
United
Wed, Oct 15 - Sat, Oct 18
BOS
Boston
FCA
Kalispell
$324 Roundtrip, found 1 day ago
$324
Roundtrip
found 1 day ago
Select United flight, departing Wed, Oct 15 from Boston to Kalispell, returning Sat, Oct 18, priced at $324 found 1 day ago
United
Thu, Oct 16 - Wed, Oct 22
BOS
Boston
FCA
Kalispell
$327 Roundtrip, found 8 hours ago
$327
Roundtrip
found 8 hours ago
Select United flight, departing Thu, Oct 16 from Boston to Kalispell, returning Wed, Oct 22, priced at $327 found 8 hours ago
United
Thu, Sep 25 - Tue, Sep 30
BOS
Boston
FCA
Kalispell
$328 Roundtrip, found 5 days ago
$328
Roundtrip
found 5 days ago
Select United flight, departing Thu, Sep 25 from Boston to Kalispell, returning Tue, Sep 30, priced at $328 found 5 days ago
Flights from Boston (BOS) to Kalispell (FCA)
Origin airport
Logan Intl.
Destination airport
Glacier Park Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Hawaiian Airlines, United
Popular airline
United
Distance
2110 mi

Frequently asked questions

How much is a United Airlines flight from Logan Intl. Airport (BOS) to Glacier Park Intl. Airport (FCA)?
Grab cheap round-trip United Airlines flights from $317 from BOS to FCA by sorting your results from "Price (lowest to highest)" on Expedia. Or look for options from $159 for a one-way trip.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from BOS to FCA with United Airlines?
United Airlines flights to Kalispell tend to be cheaper in the quieter months of January and December. Whether you're in search of a return or one-way ticket, you could score a better deal then.
What is the cheapest time to book flights from Logan Intl. Airport (BOS) to Glacier Park Intl. Airport (FCA) with United Airlines?
Start searching one to three months ahead of your departure date to find cheaper fares on United Airlines flights from Logan Intl. Airport (BOS) to Glacier Park Intl. Airport (FCA). You can save 25% by booking your domestic flight 34 to 86 days in advance versus last-minute reservations made 6 to 12 days out. You could also cut costs by buying your fare on a Sunday, as it's 6% cheaper on average than a Monday, the most expensive day to book.* Nail your timing, and you can enjoy significant savings on domestic trips.*Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does United Airlines fly nonstop from Logan Intl. Airport (BOS) to Glacier Park Intl. Airport (FCA)?
Use our "Nonstop" filter when looking for direct United Airlines flights from BOS to FCA. It's also a good way to compare other airlines offering the same nonstop trip.
What is the earliest United Airlines flight from BOS to FCA?
To find the earliest departures from BOS to FCA with United Airlines, filter your search by "Early Morning" and "Morning." Choosing an early flight usually means you're less likely to experience cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does United Airlines fly into in Kalispell?
Get on a United Airlines flight from Logan Intl. Airport (BOS) to Kalispell, and you'll probably land at Glacier Park Intl. Airport (FCA). This is the airline's main hub in this destination.
Why fly with United Airlines from BOS to FCA?
A rewarding loyalty program and the chance to rack up points through United Mileage Plus are the start of the reasons to leave from BOS to FCA with United Airlines. Plus, when you sign up to Expedia's free One Key™ program, you can receive OneKeyCash™* in addition to United Airlines's loyalty program earnings. It's yours to spend on future travel plans.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my United Airlines flight from Logan Intl. Airport (BOS) to Glacier Park Intl. Airport (FCA)?
Depending on the type of ticket you purchased, a fee may apply if you cancel or change your booking more than 24 hours after it's confirmed. To find plane tickets with more flexibility, select our "Changes included" and "No cancel fee" boxes when you search for flights. For more details on canceling or changing your reservation, visit "Trips," select your flight and click on "Manage Booking."

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