$158 Cheap Flights from Kalispell (FCA) to Boston (BOS)

View $158 flight on Sun, Nov 2, 2025Opens in a new window

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

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Cheap Flights from Kalispell to Boston (FCA-BOS)

Prices were available within the past 7 days and start at $158 for one-way flights and $312 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Bargain Flight
Tue, Sep 16 - Tue, Sep 23
FCA
Kalispell
BOS
Boston
$312 Roundtrip, found 3 days ago
$312
Roundtrip
found 3 days ago
Select Bargain Flight flight, departing Tue, Sep 16 from Kalispell to Boston, returning Tue, Sep 23, priced at $312 found 3 days ago
Alaska Airlines
Tue, Sep 16 - Tue, Sep 23
FCA
Kalispell
BOS
Boston
$316 Roundtrip, found 3 days ago
$316
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Tue, Sep 16 from Kalispell to Boston, returning Tue, Sep 23, priced at $316 found 3 days ago
United
Fri, Nov 7 - Mon, Nov 10
FCA
Kalispell
BOS
Boston
$317 Roundtrip, found 3 days ago
$317
Roundtrip
found 3 days ago
Select United flight, departing Fri, Nov 7 from Kalispell to Boston, returning Mon, Nov 10, priced at $317 found 3 days ago
Delta
Tue, Oct 28 - Thu, Nov 6
FCA
Kalispell
BOS
Boston
$317 Roundtrip, found 12 hours ago
$317
Roundtrip
found 12 hours ago
Select Delta flight, departing Tue, Oct 28 from Kalispell to Boston, returning Thu, Nov 6, priced at $317 found 12 hours ago
American Airlines
Thu, Sep 4 - Mon, Sep 8
FCA
Kalispell
BOS
Boston
$317 Roundtrip, found 1 day ago
$317
Roundtrip
found 1 day ago
Select American Airlines flight, departing Thu, Sep 4 from Kalispell to Boston, returning Mon, Sep 8, priced at $317 found 1 day ago
American Airlines
Thu, Sep 4 - Mon, Sep 8
FCA
Kalispell
BOS
Boston
$317 Roundtrip, found 1 day ago
$317
Roundtrip
found 1 day ago
Select American Airlines flight, departing Thu, Sep 4 from Kalispell to Boston, returning Mon, Sep 8, priced at $317 found 1 day ago
American Airlines
Tue, Oct 28 - Thu, Nov 6
FCA
Kalispell
BOS
Boston
$319 Roundtrip, found 12 hours ago
$319
Roundtrip
found 12 hours ago
Select American Airlines flight, departing Tue, Oct 28 from Kalispell to Boston, returning Thu, Nov 6, priced at $319 found 12 hours ago
Alaska Airlines
Tue, Sep 16 - Tue, Sep 23
FCA
Kalispell
BOS
Boston
$320 Roundtrip, found 3 days ago
$320
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Tue, Sep 16 from Kalispell to Boston, returning Tue, Sep 23, priced at $320 found 3 days ago
Delta
Fri, Sep 5 - Tue, Sep 9
FCA
Kalispell
BOS
Boston
$322 Roundtrip, found 23 hours ago
$322
Roundtrip
found 23 hours ago
Select Delta flight, departing Fri, Sep 5 from Kalispell to Boston, returning Tue, Sep 9, priced at $322 found 23 hours ago
Delta
Wed, Dec 24 - Tue, Jan 6
FCA
Kalispell
BOS
Boston
$322 Roundtrip, found 1 day ago
$322
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Dec 24 from Kalispell to Boston, returning Tue, Jan 6, priced at $322 found 1 day ago

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

June is typically the cheapest month to fly

From $272 - $767 per traveler.

Graph displaying average flight prices per month

Alternative airports near Boston

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

Select flight to Logan Intl. BOS. Cheapest and Closest option available. Average driving time to city center is 7 minutes. Flights from $514
BOS
Logan Intl.
CheapestClosest
Average driving time to city center7 min
Flights from $514
Flights from Kalispell (FCA) to Boston (BOS)
Origin airport
Glacier Park Intl.
Destination airport
Logan Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Hawaiian Airlines, United
Roundtrip price
$312
Distance
2110 mi

Kalispell to Boston Flights

The cheapest times to fly from Kalispell to Boston

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 Kalispell to Boston are during the month of September. You can find some of the cheapest flights from Kalispell to Boston with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Kalispell to Boston

Sunday is one of the best days to book for cheap flights from Kalispell to Boston: 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 Kalispell to Boston

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 Kalispell to Boston in 2025. You can also book with separate airlines for your outbound and return journeys, from $158 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 Kalispell to Boston 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 Kalispell to Boston 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.

 

Frequently asked questions

How much does a flight from Glacier Park Intl. Airport (FCA) to Logan Intl. Airport (BOS) cost?
Discover the latest flight deals from FCA to BOS by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from FCA to BOS?
The cheapest flights from FCA to BOS are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from FCA to BOS?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from FCA to BOS. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Glacier Park Intl. Airport (FCA) to Logan Intl. Airport (BOS)?
You'll need to hop on a flight with a layover if you're traveling from Glacier Park Intl. Airport (FCA) to Logan Intl. Airport (BOS). Direct flights don't operate daily on this route. However, just filter your search to include one or two stops to find an option that works for you.
What day of the week has the most flights from FCA to BOS?
Usually you'll find the widest variety of flight choices on a Friday. Tuesdays are often the quietest.* However, this can change based 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 Glacier Park Intl. Airport (FCA) to Logan Intl. Airport (BOS)?
To arrive at Logan Intl. Airport (BOS) on time, pick a flight that takes off from Glacier Park Intl. Airport (FCA) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**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 Glacier Park Intl. Airport (FCA) to Logan Intl. Airport (BOS) last-minute?
Booking your ticket from FCA to BOS right before your trip is typically more expensive. But if there's some wiggle room with your departure dates and times, you could score a cheap last-minute fare.
Is it cheaper to book a FCA to BOS flight and hotel package?
You can save money by booking a FCA to BOS flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one place. Once you've chosen your preferred flights and accommodations, consider other add-ons like car rentals, tours and activities.
Can I cancel or change the date of my flight from Glacier Park Intl. Airport (FCA) to Logan Intl. Airport (BOS)?
If you reserved your FCA to BOS flight in the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of fare you have, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

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*Available to One Key members.