BOS - FCA

$144 Find Cheap Flights from Boston to Kalispell

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boston to Kalispell departing on 8/24. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Kalispell

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Kalispell, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Kalispell, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 20% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flights Deals
Useful Info
Flights Deals

Cheap Flights from Boston to Kalispell (BOS-FCA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Boston to Kalispell that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Boston to Kalispell

Tue, Aug 26 - Tue, Aug 26
American Airlines Logo
5:55 am - 2:39 pmBOS-FCA
10h 44m1 stop
American Airlines Logo
3:49 pm - 7:35 amFCA-BOS
13h 46m2 stops
$286American Airlines
Find Deal
Tue, Aug 19 - Tue, Aug 26
American Airlines Logo
5:29 am - 2:39 pmBOS-FCA
11h 10m2 stops
American Airlines Logo
3:49 pm - 7:35 amFCA-BOS
13h 46m2 stops
$291American Airlines
Find Deal
Wed, Aug 20 - Tue, Aug 26
Delta Logo
6:45 pm - 12:25 amBOS-FCA
7h 40m1 stop
Delta Logo
6:11 pm - 6:25 amFCA-BOS
10h 14m1 stop
$297Delta
Find Deal
Tue, Aug 26 - Thu, Sep 4
Alaska Airlines Logo
7:20 am - 4:11 pmBOS-FCA
10h 51m1 stop
Alaska Airlines Logo
8:02 pm - 8:00 amFCA-BOS
9h 58m1 stop
$301Alaska Airlines
Find Deal
Wed, Aug 20 - Tue, Aug 26
Delta Logo
2:30 pm - 11:53 pmBOS-FCA
11h 23m2 stops
Delta Logo
6:11 pm - 6:25 amFCA-BOS
10h 14m1 stop
$302Delta
Find Deal
Wed, Sep 3 - Fri, Sep 19
Alaska Airlines Logo
4:00 pm - 11:59 pmBOS-FCA
9h 59m1 stop
Alaska Airlines Logo
8:02 pm - 8:00 amFCA-BOS
9h 58m1 stop
$316Alaska Airlines
Find Deal
Tue, Jul 15 - Tue, Jul 22
 Logo
6:00 am - 9:19 amBOS-FCA
29h 19m2 stops
 Logo
1:15 pm - 11:03 pmFCA-BOS
31h 48m3 stops
Mon, Aug 25 - Wed, Sep 3
United Airlines Logo
11:00 am - 9:40 pmBOS-FCA
12h 40m2 stops
United Airlines Logo
6:30 am - 6:55 pmFCA-BOS
10h 25m2 stops
$399United Airlines
Find Deal
Fri, Jul 4 - Thu, Jul 10
 Logo
6:30 am - 4:11 pmBOS-FCA
11h 41m1 stop
 Logo
10:40 am - 8:37 amFCA-BOS
19h 57m2 stops
Sun, Aug 24 - Wed, Sep 3
United Airlines Logo
7:45 am - 4:07 pmBOS-FCA
10h 22m2 stops
United Airlines Logo
6:30 am - 6:55 pmFCA-BOS
10h 25m2 stops
$451United Airlines
Find Deal
Useful Info

KAYAK's insights & trends for Boston to Kalispell flights

Get data-powered insights and trends into flights from Boston to Kalispell to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Boston to Kalispell?

The average price of all round-trip flights from Boston to Kalispell clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Kalispell on a Tuesday and more expensive on a Sunday. On your return trip to Boston, you should consider flying back on a Monday, and avoid Sundays for better deals.

What is the cheapest month to fly from Boston to Kalispell?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Boston to Kalispell, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Boston to Kalispell is January, where tickets cost $400 (return) on average. On the other hand, the most expensive months are July and June, where the average cost of round-trip tickets is $748 and $660 respectively.

How far in advance should I book a flight from Boston to Kalispell?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Boston to Kalispell, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Boston to Kalispell, you should book around 4 weeks before departure. For the absolute cheapest price, our data suggests you should book 13 weeks before departure.

Good to know

Low seasonApril
High seasonAugust
Cheapest flight$144
Best time to beat the crowds but there is an average 2% increase in price.
Most popular time to fly with an average 4% increase in price.
Flight from Boston to Kalispell

When to book flights from Boston to Kalispell

Are your dates flexible? Find out the best times to travel from Boston to Kalispell based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Boston to Kalispell

  • Can I change or cancel my flight from Boston to Kalispell after booking?

    All domestic flights within the US have a 24-hour window from the time of original booking. During this time, you can change or cancel the flight with no penalty. After this 24-hour period, additional fees may apply for itinerary changes. Delta gives a refundable ticket option for each of their cabins, which includes free changes and is refundable. United Airlines also offers their Economy Flex fare for free changes.

  • Do I have to pay extra for bags on this flight?

    Baggage fees are determined by the airline and will also depend on the ticket type you choose. On Delta flights, all passengers can bring a personal item (that can fit under the seas) and a carry-on free of charge. Fees will be charged for any checked baggage unless you decide to upgrade to the First-Class cabin, which includes two checked bags. The Basic Economy fare on United does not include a carry-on bag and must be paid for along with any checked bags. Pay online for checked bags to get a discount and make the check-in process easier.

  • Can my child travel alone from Boston to Kalispell?

    Kids aged 5 to 14 can travel alone on United and Delta Air Lines through their Unaccompanied Minor programs. With this service, they will receive an escort through the airport upon arrival, as well as special snacks and entertainment during the flight. Parents are given a special pass that permits them to take their child up to the boarding gate. They will even be given a barcoded wristband which allows parents to track their journey.

  • How can I get from Kalispell Airport to Glacier National Park?

    Kalispell Airport is the nearest one to the West Entrance of Glacier National Park. From the airport, you can take a shuttle to the Whitefish Amtrak Station. Glacier Park operates these shuttles, and they leave every 15 minutes. Once at the station, take the train to West Glacier, where the park entrance is located. Car rental companies like Avis and Hertz are available at the airport to give you the most flexibility during your trip. Check KAYAK for some of the best rental rates.

  • What is the cheapest flight from Boston to Kalispell?

    In the last 3 days, the lowest price for a flight from Boston to Kalispell was $144 for a one-way ticket and $286 for a round-trip.

  • Do I need a passport to fly between Boston and Kalispell?

    No

  • Which aircraft models fly most regularly from Boston to Kalispell?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Boston to Kalispell?

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between Boston and Kalispell, with oneworld being the most commonly used for this route.

  • What is the most popular layover when flying to Kalispell from Boston?

    Chicago is the most popular layover city among KAYAK users traveling from Boston to Kalispell.

  • Which is the best airline for flights from Boston to Kalispell, Delta or Alaska Airlines?

    The two airlines most popular with KAYAK users for flights from Boston to Kalispell are Delta and Alaska Airlines. With an average price for the route of $553 and an overall rating of 8.0, Delta is the most popular choice. Alaska Airlines is also a great choice for the route, with an average price of $620 and an overall rating of 8.0.

  • How does KAYAK find such low prices on flights from Boston to Kalispell?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Boston to Kalispell.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Boston to Kalispell?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Kalispell from Boston is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Boston to Kalispell?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Kalispell with an airline and back to Boston with another airline. Booking your flights between Boston and FCA can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boston to Kalispell?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Kalispell from Boston up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Boston to Kalispell

  • There are no direct flights along this route from Boston (BOS) to Kalispell (FCA), but most of them will have only one stop. Your flight might have a layover in Chicago (ORD), Seattle (SEA), Minneapolis (MSP), or Denver (DEN).
  • When you upgrade your Alaska Airlines flight from the Saver to the Main fare, you will have the freedom to choose your seat and change or cancel your flight. The Premium Class seats add 4 inches of legroom and complimentary cocktails during the flight.
  • Some Alaska Airlines flights will have a long layover of over 4 hours in Seattle (SEA). During the layover, you can relax in the Seattle D Concourse Lounge with complimentary food and drinks. You may purchase a day pass or have it included with a Business Class ticket.
  • If you need more time to think before booking your flight, United offers FareLock. For a small fee, you can lock in the price of a flight for up to 14 days.
  • Join Delta SkyMiles rewards program to stay connected during your flight. They now have free Wi-Fi available on most domestic flights.

Reviews of the top 4 airlines serving from Boston to Kalispell

 
See real verified KAYAK customer reviews for airlines flying from Boston to Kalispell. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Boston to Kalispell? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 10000 reviews
7.1Entertainment
8.5Crew
7.1Food
8.1Boarding
7.8Comfort
Airline reviews

Food was just ok..had snack box :( Crew was very nice

8.0 ExcellentAnonymous, Jun 2025SEA - MKE
Read more Alaska Airlines reviews

Food was just ok..had snack box :( Crew was very nice

The Alaska app and website were not fully operational. I had to spend about 15 minutes at the counter doing things that should have been completed online. The agent was very nice and helpful, however.

Could have service kiosks, had to find a gate with an attendant

Flying on Hawaiian Airlines was good. But, getting a boarding pass was a hassle. I booked what I thought was an Alaska Airlines flight that was actually a Hawaiian Airlines flight. I couldn't check in online. I had to wait for the Hawaiian Airlines counter to open so I could get my boarding pass which was a requirement for me to get in The Club or the Centurion Lounge. (I had no check in luggage so I didn't expect to have to physically check in.) The Alaska Airlines staff blamed the FAA for the problem.

Passengers were not informed timely of delays. The staff appeared like they didn't really care about the passengers.

Food and entertainment aren’t a thing on these regional flights. But it was a smooth flight. Could see gorgeous countryside through the large windows. The earplugs are a nice touch for the prop engines but the hum of the engines did not bother me. Grateful the option exists to easily get from A to B.

Both flights were delayed going to our destination and leaving, and communication about the delays was not great by the airlines, now the crews were phenomenal and great to be around!!

Both flights were delayed due to an incident at SEA. The problem really rests with inadequate customer & plane facilities for Skywest at SEA. You feel like you are in a cattle enclosure. And planes were sitting on taxiways waiting for parking so every plane was late. SEA appears to be over capacity. It is not a fun passenger experience waiting. But crews and flights were all fine. Alaska needs to step up.

Really good except my daughter's tv broke during the flight so she could watch tv

Staff are helpful and patient. I don’t appreciate the almost 5 hours delay and also the delay of our luggage and being switched from one carousel to another to pick them up.

I like for how they process during check in. It was very smoothly.

The flight was scheduled for 2:30 PM. Early in the morning we got a text message saying the flight was delayed and rescheduled for 3:00 PM. We got to the airport with that in mind. Then we got a message during check-in at the flight was rescheduled again for 2:30 PM. We almost missed our flight. In fact, our bags Were told that they would not make it. At the end, everything worked out. But it is very stressful.

Most aspects were good however if they assign boarding zones they ought to enforce them or why bother? My luggage from SAN-JFK-MAD was lost in NY so I without my main bag for two days upon arrival in Spain. They were helpful in tracking it and eventually delivered it to my hotel. The flub was because of a delay upon arrival in NYC. I had booked 2 1/2 hours between flights but we had to hold on the taxiway for an hour after landing while waiting for a clear gate which likely caused the baggage error.

I want to single out flight attendant Mitch who was in the Premium Economy section. When my wife’s hearing aide dropped through the cushion under the seat he was able to locate it and return it to her. Food was a different matter. Dinner was fine. Breakfast was another matter. They had a yogurt dish that the ran out of and the alternative was not very good according to those we talked to.

Excellent check-in. Crew was good. Excellent communication from flight deck.

Great overall. There was a bit of turbulence so they could only serve water because too much turbulence for the carts. Was glad they prioritized safety though

Excellent flight, the planes were newer, they did a nice job with boarding, great service overall.

Great service. Flight was delayed while we sat on the runway for a couple of hours. Weather related. Staff made is very bearable. The steward servicing the first class cabin was exceptional. Thank you! 💗

5 hours of delay that could've been much shorter if Delta had taken the 1 hour delay they imposed on the flight before boarding to run any of the plane checks required for flight to find the hydraulic issue that required nearly 3 hours to fix. $24 of meal credit buys a sandwich and a soft drink. Poor communication within the terminal about what gate we'd be re-boarding from and when we'd be re-boarding.

Great flight! Only complaint I had was that I didn’t get breakfast that morning because I don’t eat eggs for breakfast.. I ate an energy bar I bought in the airport which I had never done before. Otherwise, another great Delta flight!

Gate agent did not hold flight for connection, provided no assistance to get new flight

Evidently, my seat had the only broken TV. I couldn’t plug it in, get it to come on, or watch anything, and of course, no one could fix it while we were on the plane. The service was good and the boarding was quick

United airlines, mediocre at best. No issues , nothing great . Worked for me

it was so bad. I tried to board my flight from vancouver to saskatoon. And to my surprise they did not board me cause the flight was changed and no email was send to me. and on my boarding pass which i got from seattle says different flight. I did not knew anyone from Vancouver, air canada crew was rude, i asked for today flight but they were rude and i had early morning dental appointment in saskatoon. I was so much in pain and my whole day is wasted today. and i suffered alot. They did provide me hotel but they did not provide me any food. I am really really disappointed first time had so bad experience with air canada. I may think twice to book it again. If i can get any reply or any composition that would be great. Thanks

It was fine, definitely older planes with no charging or anything. There’s no entertainment set up on board, but it is nice that they allow you to access the in flight entertainment from your phone without having to pay for the Wi-Fi and they do offer free texting.

Boarding was mayhem. Late boarding by 15 minutes because of lack of staff (missing 1 flight attendant. We had to wait for an arrival of another plane before we could board). Flight was a little rough, but cannot blame on airlines.

Impressed with the service despite turbulence because of the weather. Both flights arrived before their scheduled times.

Very comfortable (upgraded to business class). The audio on my screen didn’t work, but I managed to play the audio through my phone while watching the screen.

Great experience…left a bit behind schedule but made up fir that in the air and landed 10 minutes early 😁

I was supposed to be on business class at first class from Denver back to Miami due to weather changes. I missed my connection and it’s put on a flight to Fort Lauderdale. Instead of honoring my business class/1st class ticket, they put me in coach, but there were two first class seats open. I think it’s absolutely disgusting that I paid for first class $1300 ticket and they put me in economy and they had to open seats available and I have still not been refunded the difference. I ended up having to eat a snack box instead of the meal I was supposed to get and did not get home till 2 AM so I think that’s a little pathetic that I had to live off crackers for dinner And my poor dog ate some cheese and salami. Oh yes, apparently when they switched me to the new flight they forgot to mention I had a service dog

Loved the staff, boarding and drink options! Wish the comfort of the seat could have been better nevertheless

The chair cushions may need an upgrade. I have been noticing they are so worn out, thin so you’d sit in a dip 😄. Other than that, all was an enjoyable trip. Thanks AA!

I’m impressed that we were on time in Sacramento after having a late departure in Newark and our made it. The staff was friendly and warm.

Cramped seats. FAA should make airlines have more legroom, for even short people complain

5.5 hour delay with no explanation on why, along with no proactive effort to reaccomodate me.

It was one of my worst flight ever. First they were changing the gate for at least 4 times, changing from gate D7 to D12 to D44. Considering the size of the Miami Airport, we are talking about long distance and the train at the airport was not working. Then the flight was delayed around one hour. Then finally we boarded into the plane and when everybody was seated, there was an announcement that there is an issue with one of the tire of the plane, so we all had to get out of the plane with our belongings, to replace the tire. So we had around 2.5-hour delay

Most miserable flight ever. We waited almost 2 hours on the runway because the flight was oversold. American offered $1200 credit. Then there was some nonsense about weight distribution. Ridiculous. No food for 8 plus hours on the flight. I will be writing a letter.

Honestly, I haven’t flown American in years, probably due to the pandemic and my being unable to travel for certain periods in the last two years, but it was a good experience to dig out or obtain a new American Airlines account after many years of traveling for business with American in the past.

The plane was probably full boarding was easy. We were able to check our carry-on luggage for free. It was a return flight through Philly to LA. Never saw a stewardess do a demonstration of emergency Procedures. I think my flight was pretty full

Plane, flight, crew, captain were all great. The first flight had a Chipotle box lunch...delicious.

Everything you need to know for your flight from Boston to Kalispell

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.