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Cheap Flights from Boston Logan International to Kalispell

Compare Boston Logan International to Kalispell flight deals

Find the cheapest month or even day of the year to fly to Kalispell

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Flight deals from Boston Logan International to Kalispell

Looking for a cheap last-minute deal or the best return flight from Boston Logan International Airport to Kalispell Airport? If you want to travel next month, return fares start from $854. Find the lowest prices on one-way and return tickets right here.
Kalispell.$675 per passenger.Departing Fri, 16 Oct, returning Mon, 19 Oct.Return flight with Delta.Outbound indirect flight with Delta, departs from Boston Logan International on Fri, 16 Oct, arriving in Kalispell.Inbound indirect flight with Delta, departs from Kalispell on Mon, 19 Oct, arriving in Boston Logan International.Price includes taxes and charges.From $675, select.
Kalispell.$678 per passenger.Departing Wed, 23 Sep, returning Wed, 30 Sep.Return flight with Delta.Outbound indirect flight with Delta, departs from Boston Logan International on Wed, 23 Sep, arriving in Kalispell.Inbound indirect flight with Delta, departs from Kalispell on Wed, 30 Sep, arriving in Boston Logan International.Price includes taxes and charges.From $678, select.
Kalispell.$785 per passenger.Departing Thu, 20 Aug, returning Thu, 3 Sep.Return flight with United.Outbound indirect flight with United, departs from Boston Logan International on Thu, 20 Aug, arriving in Kalispell.Inbound indirect flight with United, departs from Kalispell on Thu, 3 Sep, arriving in Boston Logan International.Price includes taxes and charges.From $785, select.
Kalispell.$854 per passenger.Departing Wed, 19 Aug, returning Wed, 26 Aug.Return flight with United.Outbound indirect flight with United, departs from Boston Logan International on Wed, 19 Aug, arriving in Kalispell.Inbound indirect flight with United, departs from Kalispell on Wed, 26 Aug, arriving in Boston Logan International.Price includes taxes and charges.From $854, select.
Kalispell.$1,004 per passenger.Departing Thu, 31 Dec, returning Thu, 14 Jan.Return flight with United.Outbound indirect flight with United, departs from Boston Logan International on Thu, 31 Dec, arriving in Kalispell.Inbound indirect flight with United, departs from Kalispell on Thu, 14 Jan, arriving in Boston Logan International.Price includes taxes and charges.From $1,004, select.
Kalispell.$1,034 per passenger.Departing Fri, 10 Jul, returning Mon, 13 Jul.Return flight with Delta.Outbound indirect flight with Delta, departs from Boston Logan International on Fri, 10 Jul, arriving in Kalispell.Inbound indirect flight with Delta, departs from Kalispell on Mon, 13 Jul, arriving in Boston Logan International.Price includes taxes and charges.From $1,034, select.
Kalispell.$1,284 per passenger.Departing Sat, 2 Jan, returning Sat, 16 Jan.Return flight with United.Outbound indirect flight with United, departs from Boston Logan International on Sat, 2 Jan, arriving in Kalispell.Inbound indirect flight with United, departs from Kalispell on Sat, 16 Jan, arriving in Boston Logan International.Price includes taxes and charges.From $1,284, select.
Kalispell.$1,311 per passenger.Departing Fri, 24 Jul, returning Tue, 4 Aug.Return flight with Delta.Outbound indirect flight with Delta, departs from Boston Logan International on Fri, 24 Jul, arriving in Kalispell.Inbound indirect flight with Delta, departs from Kalispell on Tue, 4 Aug, arriving in Boston Logan International.Price includes taxes and charges.From $1,311, select.
Kalispell.$2,412 per passenger.Departing Wed, 25 Nov, returning Sat, 28 Nov.Return flight with United.Outbound indirect flight with United, departs from Boston Logan International on Wed, 25 Nov, arriving in Kalispell.Inbound indirect flight with United, departs from Kalispell on Sat, 28 Nov, arriving in Boston Logan International.Price includes taxes and charges.From $2,412, select.

Find the cheapest month to fly from Boston Logan International to Kalispell

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Boston Logan International to Kalispell flights are currently cheapest in October.
Jul
from $1,034
Aug
from $854
Sep
from $678
Oct
from $675
Nov
from $2,412
Dec
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Jan
from $1,284
Feb
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Mar
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Apr
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May
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Jun
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Boston Logan International to Kalispell: Alternative routes

Compare routes from Boston Logan International to Kalispell below. You may find an airport to fly into that's cheaper, faster, or easier than Kalispell.

Kalispell

13km from central Kalispell
ClosestCheapest
from $675
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Boston to Kalispell: Flight information

The things to know before you go.
Cheapest flight found$675
Cheapest month to flyOctober

Finding cheap flights from Boston Logan International to Kalispell: Frequently asked questions

The best price we found for a return flight from Boston Logan International to Kalispell is $675. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Boston Logan International to Kalispell. But we found flights with one or more stops from $675.
As of July 2026, there are no flights flying from Boston Logan International to Kalispell.
The cheapest month to fly from Boston Logan International to Kalispell is usually October.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Boston Logan International Airport to Kalispell Airport on Friday, 16 October 2026.
No airlines currently offer direct flights between Boston Logan International Airport and Kalispell Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Kalispell but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Kalispell is around 40 days in advance, so don’t leave your flight to the last minute.

Currently, Delta offers the cheapest flight tickets to Kalispell.

Flying from Boston Logan International Airport (BOS) to Kalispell Airport (FCA): what you need to know

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are golden rules for hassle-free flying. Be at the airport with enough time to board your BOS to FCA flight.

  • You can expect longer queues in popular months like July. Arriving up to four hours ahead of international flights and two hours for a domestic departure is a good idea.

  • Think about adding a stopover when booking your ticket from Boston Logan International Airport to Kalispell Airport. Just uncheck 'Direct flights only' to break up your trip, or enjoy a detour to a new and interesting place. Here's where you can stop between BOS and FCA:

    • Chicago O'Hare International Airport

    • Denver International Airport

    • Minneapolis St Paul Airport

How to find the cheapest flights from Boston Logan International Airport (BOS) to Kalispell Airport (FCA)

  • At the moment, $338 is the cheapest price we've found for a one-way Boston Logan International Airport to Kalispell Airport flight. The best price for a return ticket is $675. Keep in mind that fares could change due to demand when booking.

  • It's usually smart to book in advance if you're looking for cheap tickets from BOS to FCA. That's because airlines change prices based on demand, which tends to rise closer to the date of departure.

  • Finding cheap flights from Boston Logan International Airport to Kalispell Airport is easier if you can be flexible with your travel plans. Use the 'Whole month' function to see the best prices across the month and land a great deal.

  • Save time searching for cheap flights from BOS to FCA by setting up a Price Alert. You'll receive an email or notification through the app when a new discounted fare appears.

  • Secure the ideal flight for you by using the filters. To see the 'Cheapest,' 'Fastest' or 'Best' flights from Boston Logan International Airport to Kalispell Airport, use the 'Sort by' tool. You can also filter results by airline, departure and arrival times, and number of stops.

Handy information about Boston Logan International Airport (BOS)

  • BOS is located at One Harborside Drive.

  • When it comes to the on-time performance of Boston Logan International Airport, 75% of flights meet their scheduled arrival time.

  • Central Boston to Boston Logan International Airport is around 8 kilometres. Depending on traffic, it'll take you about 20 minutes to get there if you're catching a taxi, ride-sharing or driving.

  • The trip on public transport typically takes 25 minutes.

  • Catching an early flight from Boston Logan International Airport to Kalispell Airport? Avoid the stress of rushing to the terminal (and sneak in some extra snooze time) by choosing one of these stays near BOS:

Arriving at Kalispell Airport (FCA)

When to fly to Kalispell Airport (FCA)

  • It's time to pick your dates for your flight from Boston Logan International Airport to Kalispell Airport. August is the busiest month to head to Kalispell. If you like a more relaxed vibe, go in March.

  • When booking your flight from Boston Logan International Airport to Kalispell Airport, think about the type of weather you like. July is the warmest month in Kalispell, with temperatures ranging from 7ºC to 32ºC.

  • February sees average temperatures of between -17ºC and 1ºC. Look for cheap tickets from BOS to FCA sometime around then if you like travelling in cooler conditions.

Explore more of the United States

  • Kalispell has its own special appeal, but there are so many other parts of the United States waiting to be explored. About 241 kilometres west of Kalispell, a trip to Spokane will keep you on the go. Start with leading sights like Riverside State Park, Spokane Falls (Upper Falls) and Cathedral of Our Lady of Lourdes.

  • If there's time to check out another major stop in the United States, head for Spokane Valley, about 225 kilometres west of Kalispell. Appleway Trail, Splash Down Waterpark and Honour Point Military and Aerospace Museum are the start of reasons to visit.

Plan the rest of your trip from Boston to Kalispell

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.