$140 Cheap Flights from Boston (BOS) to Kalispell (FCA)

View $140 flight on Fri, Feb 20, 2026Opens in a new window

Popular airlines from Logan International Airport (BOS) to Glacier Park Intl. Airport (FCA)

Cheap Flights from Boston to Kalispell (BOS-FCA)

Prices were available within the past 7 days and start at $140 for one-way flights and $274 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sat, Jan 17 - Wed, Jan 21
BOS
Boston
FCA
Kalispell
$274 Roundtrip, found 5 days ago
$274
Roundtrip
found 5 days ago
Select United flight, departing Sat, Jan 17 from Boston to Kalispell, returning Wed, Jan 21, priced at $274 found 5 days ago
Hawaiian Airlines
Tue, Mar 3 - Wed, Mar 4
BOS
Boston
FCA
Kalispell
$283 Roundtrip, found 3 days ago
$283
Roundtrip
found 3 days ago
Select Hawaiian Airlines flight, departing Tue, Mar 3 from Boston to Kalispell, returning Wed, Mar 4, priced at $283 found 3 days ago
United
Sat, Jan 31 - Sat, Feb 7
BOS
Boston
FCA
Kalispell
$288 Roundtrip, found 3 days ago
$288
Roundtrip
found 3 days ago
Select United flight, departing Sat, Jan 31 from Boston to Kalispell, returning Sat, Feb 7, priced at $288 found 3 days ago
Alaska Airlines
Sat, Jan 17 - Wed, Jan 21
BOS
Boston
FCA
Kalispell
$288 Roundtrip, found 5 days ago
$288
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Sat, Jan 17 from Boston to Kalispell, returning Wed, Jan 21, priced at $288 found 5 days ago
United
Tue, Jun 9 - Tue, Jun 16
BOS
Boston
FCA
Kalispell
$295 Roundtrip, found 3 days ago
$295
Roundtrip
found 3 days ago
Select United flight, departing Tue, Jun 9 from Boston to Kalispell, returning Tue, Jun 16, priced at $295 found 3 days ago
Alaska Airlines
Mon, Jan 5 - Tue, Jan 20
BOS
Boston
FCA
Kalispell
$296 Roundtrip, found 6 hours ago
$296
Roundtrip
found 6 hours ago
Select Alaska Airlines flight, departing Mon, Jan 5 from Boston to Kalispell, returning Tue, Jan 20, priced at $296 found 6 hours ago
Delta
Tue, Jan 6 - Fri, Jan 9
BOS
Boston
FCA
Kalispell
$297 Roundtrip, found 6 hours ago
$297
Roundtrip
found 6 hours ago
Select Delta flight, departing Tue, Jan 6 from Boston to Kalispell, returning Fri, Jan 9, priced at $297 found 6 hours ago
United
Wed, Nov 12 - Wed, Nov 19
BOS
Boston
FCA
Kalispell
$299 Roundtrip, found 3 days ago
$299
Roundtrip
found 3 days ago
Select United flight, departing Wed, Nov 12 from Boston to Kalispell, returning Wed, Nov 19, priced at $299 found 3 days ago
Delta
Wed, Jan 21 - Mon, Jan 26
BOS
Boston
FCA
Kalispell
$299 Roundtrip, found 11 hours ago
$299
Roundtrip
found 11 hours ago
Select Delta flight, departing Wed, Jan 21 from Boston to Kalispell, returning Mon, Jan 26, priced at $299 found 11 hours ago
American Airlines
Wed, Aug 12 - Wed, Aug 19
BOS
Boston
FCA
Kalispell
$345 Roundtrip, found 5 days ago
$345
Roundtrip
found 5 days ago
Select American Airlines flight, departing Wed, Aug 12 from Boston to Kalispell, returning Wed, Aug 19, priced at $345 found 5 days ago

Find the cheapest month to fly from Boston (BOS) to Kalispell (FCA)

June is typically the cheapest month to fly

From $235 - $798 per traveler.

Alternative airports near Kalispell

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Glacier Park Intl. FCA. Cheapest and Closest option available. Average driving time to city center is 13 minutes. Flights from $323
FCA
Glacier Park Intl.
CheapestClosest
Average driving time to city center13 min
Flights from $323

Frequently asked questions

How much does a flight from Logan Intl. Airport (BOS) to Glacier Park Intl. Airport (FCA) cost?
Grab a cheap one-way flight from $140 or cheap return flight from $274 from Logan Intl. Airport (BOS) to Glacier Park Intl. Airport (FCA) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Logan Intl. Airport (BOS) to Glacier Park Intl. Airport (FCA)?
The cheapest month to fly from BOS to FCA is January, when demand is low. Off-peak months are generally when you'll find cheap fares for travel between these airports.
What is the cheapest airline that flies from Logan Intl. Airport (BOS) to Glacier Park Intl. Airport (FCA)?
Use the filters on Expedia to compare airlines and find the most affordable carrier that'll take you from BOS to FCA. Then, sort your results by "Price (lowest to highest)" to snag the best deal available.
How many flights per day from Logan Intl. Airport (BOS) to Glacier Park Intl. Airport (FCA)?
You'll have to catch a flight with a layover if you're traveling from Logan Intl. Airport (BOS) to Glacier Park Intl. Airport (FCA). There are no daily direct flights on this route. However, just filter your search to include one or more stops to find an option that works for you.
What day of the week has the most flights from BOS to FCA?
Usually you'll have the most choice when it comes to flights on a Friday. Tuesdays are often the quietest.* But this can change depending on the airline, season and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Logan Intl. Airport (BOS) to Glacier Park Intl. Airport (FCA)?
To avoid potential delays on the Logan Intl. Airport (BOS) to Glacier Park Intl. Airport (FCA) route, aim to travel before 3 PM. Departures after this time are 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Logan Intl. Airport (BOS) to Glacier Park Intl. Airport (FCA) last-minute?
Holding off until right before your break to book a ticket from BOS to FCA generally means paying more. Although you may find some last-minute discounts, they're not always guaranteed. Be flexible with your travel plans for the best chance of getting a bargain.
Is it cheaper to book a BOS to FCA flight and hotel package?
Booking a BOS to FCA flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip all in one place. Pick from our extensive range of stays and then add car rentals, flights and activities to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Logan Intl. Airport (BOS) to Glacier Park Intl. Airport (FCA)?
If you booked your BOS to FCA flight in the last 24 hours, you may be able to modify or cancel it at no cost. Depending on the airline and the fare type you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for further details.

Travel information

Origin airport
Logan Intl.
Destination airport
Glacier Park Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Hawaiian Airlines, United
Roundtrip price
$268
Distance
2110 mi

Book with confidence

Boston to Kalispell Flights

The cheapest times to fly from Boston to Kalispell

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Boston to Kalispell are during the month of January. You can find some of the cheapest flights from Boston to Kalispell with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Boston to Kalispell

Sunday is one of the best days to book for cheap flights from Boston to Kalispell: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Boston to Kalispell

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Boston to Kalispell in 2025. You can also book with separate airlines for your outbound and return journeys, from $140 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Boston to Kalispell flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Boston to Kalispell airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Boston to Kalispell Flights

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*Available to One Key members.