$149 Cheap Flights from Boston (BOS) to Kalispell (FCA)

View $149 flight on Sun, May 24, 2026Opens in a new window

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

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Cheap Flights from Boston to Kalispell (BOS-FCA)

Prices were available within the past 7 days and start at $149 for one-way flights and $297 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Wed, Jun 3 - Wed, Jun 10
BOS
Boston
FCA
Kalispell
$297 Roundtrip, found 7 hours ago
$297
Roundtrip
found 7 hours ago
Select American Airlines flight, departing Wed, Jun 3 from Boston to Kalispell, returning Wed, Jun 10, priced at $297 found 7 hours ago
American Airlines
Wed, May 27 - Thu, May 28
BOS
Boston
FCA
Kalispell
$297 Roundtrip, found 6 days ago
$297
Roundtrip
found 6 days ago
Select American Airlines flight, departing Wed, May 27 from Boston to Kalispell, returning Thu, May 28, priced at $297 found 6 days ago
Delta
Sun, May 24 - Fri, May 29
BOS
Boston
FCA
Kalispell
$299 Roundtrip, found 3 days ago
$299
Roundtrip
found 3 days ago
Select Delta flight, departing Sun, May 24 from Boston to Kalispell, returning Fri, May 29, priced at $299 found 3 days ago
United
Wed, Jun 3 - Thu, Jun 4
BOS
Boston
FCA
Kalispell
$310 Roundtrip, found 17 hours ago
$310
Roundtrip
found 17 hours ago
Select United flight, departing Wed, Jun 3 from Boston to Kalispell, returning Thu, Jun 4, priced at $310 found 17 hours ago
American Airlines
Wed, Jun 3 - Thu, Jun 4
BOS
Boston
FCA
Kalispell
$313 Roundtrip, found 17 hours ago
$313
Roundtrip
found 17 hours ago
Select American Airlines flight, departing Wed, Jun 3 from Boston to Kalispell, returning Thu, Jun 4, priced at $313 found 17 hours ago
Delta
Sat, Aug 8 - Sat, Aug 29
BOS
Boston
FCA
Kalispell
$314 Roundtrip, found 1 day ago
$314
Roundtrip
found 1 day ago
Select Delta flight, departing Sat, Aug 8 from Boston to Kalispell, returning Sat, Aug 29, priced at $314 found 1 day ago
Delta
Mon, Mar 16 - Tue, Mar 24
BOS
Boston
FCA
Kalispell
$321 Roundtrip, found 15 hours ago
$321
Roundtrip
found 15 hours ago
Select Delta flight, departing Mon, Mar 16 from Boston to Kalispell, returning Tue, Mar 24, priced at $321 found 15 hours ago
American Airlines
Wed, Jun 3 - Wed, Jun 10
BOS
Boston
FCA
Kalispell
$327 Roundtrip, found 7 hours ago
$327
Roundtrip
found 7 hours ago
Select American Airlines flight, departing Wed, Jun 3 from Boston to Kalispell, returning Wed, Jun 10, priced at $327 found 7 hours ago
Alaska Airlines
Thu, Mar 19 - Fri, Mar 27
BOS
Boston
FCA
Kalispell
$329 Roundtrip, found 15 hours ago
$329
Roundtrip
found 15 hours ago
Select Alaska Airlines flight, departing Thu, Mar 19 from Boston to Kalispell, returning Fri, Mar 27, priced at $329 found 15 hours ago
Hawaiian Airlines
Fri, Mar 20 - Fri, Mar 27
BOS
Boston
FCA
Kalispell
$330 Roundtrip, found 2 days ago
$330
Roundtrip
found 2 days ago
Select Hawaiian Airlines flight, departing Fri, Mar 20 from Boston to Kalispell, returning Fri, Mar 27, priced at $330 found 2 days ago

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 $438
FCA
Glacier Park Intl.
CheapestClosest
Average driving time to city center13 min
Flights from $438

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

June is typically the cheapest month to fly

From $235 - $779 per traveler.
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
Roundtrip price
$296
Distance
2110 mi

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 June. 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 2026. You can also book with separate airlines for your outbound and return journeys, from $149 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.

 

Frequently asked questions

How much does a flight from Boston, MA (BOS-Logan Intl.) to Kalispell, MT (FCA-Glacier Park Intl.) cost?
You can find cheap one-way flights from $149 and cheap return flights from $297 Boston, MA (BOS-Logan Intl.) to Kalispell, MT (FCA-Glacier Park Intl.) with Expedia. One-way flights generally range between $217 and $1532, and roundtrip flights usually range from $514 to $1993. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Boston, MA (BOS-Logan Intl.) to Kalispell, MT (FCA-Glacier Park Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Boston, MA (BOS-Logan Intl.) to Kalispell, MT (FCA-Glacier Park Intl.)?
October is the cheapest month to fly from Boston, MA (BOS) to Kalispell, MT (FCA), with average round-trip fares around $465. This price is about 18% lower than the average throughout the year, as demand typically decreases after the summer travel season. Other budget-friendly months include January and May.*Averages based on flights available on Expedia in the last year.
Which airlines fly direct from Boston, MA (BOS-Logan Intl.) to Kalispell, MT (FCA-Glacier Park Intl.)?
Enter BOS to FCA and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Boston, MA (BOS-Logan Intl.) to Kalispell, MT (FCA-Glacier Park Intl.)?
American Airlines is one of the cheapest airlines offering connecting flights from Logan Intl. (BOS) to Glacier Park Intl. (FCA) starting from around $296 for a round-trip ticket with a layover in Ronald Reagan Washington National (DCA). Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Boston, MA (BOS-Logan Intl.) to Kalispell, MT (FCA-Glacier Park Intl.)?
To find a cheap flight from Boston, MA (BOS-Logan Intl.) to Kalispell, MT (FCA-Glacier Park Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Boston, MA (BOS-Logan Intl.) to Kalispell, MT (FCA-Glacier Park Intl.)?
When flying from Boston, MA (BOS) to Kalispell, MT (FCA), October and May are the best months to fly. You can expect to pay around $465 for a return flight during these months, which are the cheapest. These months are ideal as they fall outside the peak summer travel season, allowing for more affordable fares and a more pleasant travel experience.*Prices based on flights available on Expedia in the last year.
What is the earliest flight from Boston, MA (BOS-Logan Intl.) to Kalispell, MT (FCA-Glacier Park Intl.)?
The earliest flight from Boston, MA (BOS-Logan Intl.) to Kalispell, MT (FCA-Glacier Park Intl.) typically departs at around 5:00 AM, operated by American Airlines. This early start can help you make the most of your time in Kalispell. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Boston, MA (BOS-Logan Intl.) to Kalispell, MT (FCA-Glacier Park Intl.)?
The most popular departure times for flights from Boston (BOS) to Kalispell (FCA) are in the early morning, from 6am to 9am. About 53% of passengers prefer this time window. Many major carriers, including Delta, United and American Airlines, offer flights during this window. This timing is favored as it lets you arrive in Kalispell with plenty of time to enjoy the day.
How long does it take to fly from Boston, MA (BOS-Logan Intl.) to Kalispell, MT (FCA-Glacier Park Intl.)?
Flying from BOS to FCA with a connection usually takes about 8 hours 30 minutes, traveling roughly 2,111 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Boston, MA (BOS-Logan Intl.) to Kalispell, MT (FCA-Glacier Park Intl.)?
First class seats are offered on the BOS to FCA route. First class cabins are available on:

  • American Airlines
  • Delta Air Lines
  • United Airlines

How do I earn miles on a Boston, MA (BOS-Logan Intl.) to Kalispell, MT (FCA-Glacier Park Intl.) flight with Expedia?
It's easy to earn miles on a Boston, MA (BOS-Logan Intl.) to Kalispell, MT (FCA-Glacier Park Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Kalispell from Logan Intl. (BOS)?
From Logan Intl. (BOS), you can fly into Glacier Park Intl. (FCA) to reach Kalispell. Some flights may connect through major hubs like O'Hare Intl. (ORD), Liberty Intl. (EWR), Washington Dulles Intl. (IAD) before reaching Kalispell. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Boston, MA (BOS-Logan Intl.) to Kalispell, MT (FCA-Glacier Park Intl.) at the last minute?
Typically, booking a last minute flight from Boston, MA (BOS-Logan Intl.) to Kalispell, MT (FCA-Glacier Park Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Boston, MA (BOS-Logan Intl.) to Kalispell, MT (FCA-Glacier Park Intl.) flight and hotel package?
Securing a Boston, MA (BOS-Logan Intl.) to Kalispell, MT (FCA-Glacier Park Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Boston, MA (BOS-Logan Intl.) to Kalispell, MT (FCA-Glacier Park Intl.)?
If you booked your Boston, MA (BOS-Logan Intl.) to Kalispell, MT (FCA-Glacier Park Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. 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.

*Flight schedules are subject to change.

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*Available to One Key members.