FCA - BOS

$179 Find Cheap Flights from Kalispell to Boston

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Kalispell to Boston departing on 9/11. 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, 0 bags

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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Kalispell to Boston, 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 Kalispell to Boston, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$357
Typical prices: $687-$466
Delta
Thu 10/22Mon 10/26
FCA - BOS • 1 stop
Cheapest one-way
$179
Typical prices: $289-$375
Delta
Fri 9/11
FCA - BOS • 1 stop
Top airlines
Cheapest • from $357 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Kalispell and Boston. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $480 (round-trip)
Shortest trip • 7h 16m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 100% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Boston!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Kalispell to Boston (FCA-BOS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Kalispell to Boston 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 Kalispell to Boston

Thu, Oct 22 - Mon, Oct 26
Delta Logo
1:29 pm - 11:53 pm
FCA
-
BOS
8h 24m
1 stop
Delta Logo
5:40 am - 12:29 pm
BOS
-
FCA
8h 49m
1 stop
$357Delta
Wed, Sep 2 - Wed, Sep 16
Delta Logo
3:14 pm - 11:58 pm
FCA
-
BOS
6h 44m
1 stop
Delta Logo
11:20 am - 5:28 pm
BOS
-
FCA
8h 08m
1 stop
$373Delta
Thu, Oct 22 - Mon, Oct 26
Delta Logo
1:29 pm - 10:24 pm
FCA
-
BOS
6h 55m
1 stop
Delta Logo
5:40 am - 12:29 pm
BOS
-
FCA
8h 49m
1 stop
$377Delta
Tue, Sep 22 - Sat, Oct 3
Alaska Airlines Logo
8:21 pm - 7:39 am
FCA
-
BOS
9h 18m
1 stop
Alaska Airlines Logo
6:37 pm - 12:21 pm
BOS
-
FCA
19h 44m
1 stop
$403Alaska Airlines
Thu, Jul 2 - Fri, Jul 10
Delta Logo
6:55 am - 4:45 pm
FCA
-
BOS
7h 50m
1 stop
Delta Logo
5:55 pm - 11:43 pm
BOS
-
FCA
7h 48m
1 stop
$408Delta
Tue, Sep 1 - Tue, Sep 15
American Airlines Logo
4:50 pm - 9:37 am
FCA
-
BOS
14h 47m
1 stop
American Airlines Logo
6:00 am - 2:33 pm
BOS
-
FCA
10h 33m
1 stop
$441American Airlines
Sat, Sep 5 - Sat, Sep 12
United Airlines Logo
4:17 pm - 1:14 am
FCA
-
BOS
6h 57m
1 stop
United Airlines Logo
7:45 am - 3:21 pm
BOS
-
FCA
9h 36m
1 stop
$444United Airlines
Thu, Aug 6 - Tue, Aug 11
American Airlines Logo
4:50 pm - 3:03 pm
FCA
-
BOS
20h 13m
1 stop
American Airlines Logo
6:14 am - 12:42 pm
BOS
-
FCA
8h 28m
1 stop
$446American Airlines
Fri, Aug 14 - Sun, Aug 23
United Airlines Logo
4:17 pm - 1:14 am
FCA
-
BOS
6h 57m
1 stop
United Airlines Logo
7:05 am - 3:36 pm
BOS
-
FCA
10h 31m
1 stop
$466United Airlines
Tue, Sep 1 - Tue, Sep 15
United Airlines Logo
4:17 pm - 1:14 am
FCA
-
BOS
6h 57m
1 stop
United Airlines Logo
9:00 am - 9:21 pm
BOS
-
FCA
14h 21m
2 stops
$472United Airlines
Booking Insights

KAYAK's insights & trends for Kalispell to Boston flights

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

How much is a round-trip flight from Kalispell to Boston?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Kalispell to Boston departing in October.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Kalispell to Boston, 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 Kalispell to Boston is January, where tickets cost $0 (return) on average. On the other hand, the most expensive months are August and July, where the average cost of round-trip tickets is $685 and $658 respectively.

Good to know

Low seasonDecember
Cheapest flight$179
Best time to beat the crowds with an average 28% drop in price.
Most popular time to fly and prices are also 6% lower on average.
Flight from Kalispell to Boston

When to book flights from Kalispell to Boston

Are your dates flexible? Find out the best times to travel from Kalispell to Boston 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 Kalispell to Boston

  • What is the cheapest flight from Kalispell to Boston?

    In the last 5 days, the lowest price for a flight from Kalispell to Boston was $179 for a one-way ticket and $357 for a round-trip.

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

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

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

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

  • Which airline alliances offer flights from Kalispell to Boston?

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

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

    The two airlines most popular with KAYAK users for flights from Kalispell to Boston are Delta and United Airlines. With an average price for the route of $517 and an overall rating of 7.9, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $604 and an overall rating of 7.4.

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

    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 Kalispell to Boston.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Boston from Kalispell 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 Kalispell to Boston?

    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 Boston with an airline and back to Kalispell with another airline. Booking your flights between Kalispell and BOS 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 Kalispell to Boston?

    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 Boston from Kalispell up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from Kalispell to Boston

 
See real verified KAYAK customer reviews for airlines flying from Kalispell to Boston. 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 Kalispell to Boston? 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.
7.9
DeltaOverall score based on 8396 reviews
7.8Entertainment
7.8Comfort
8.5Crew
8.1Boarding
7.2Food
Airline reviews

Only beverages were offered to first class and I thought the flight attendant could have also served the Delta Comfort as well instead of sitting down and staring at her phone and walking past all of us to the back of the plane to charge her phone more. There was a complete lack of turbulence and was safe enough for flights attendant to walk around in the front of the plane, collect trash and serve a few people water and turn off the seat belt light. Also didn’t enforce people putting their seats into the upright position and allowed two passengers to remain reclined during landing. They seemed out to lunch completely. Usually my experience on Delta is much better.

4.0 OkayMichelle, Jun 2026
ATL - PIT
Read more Delta reviews

Only beverages were offered to first class and I thought the flight attendant could have also served the Delta Comfort as well instead of sitting down and staring at her phone and walking past all of us to the back of the plane to charge her phone more. There was a complete lack of turbulence and was safe enough for flights attendant to walk around in the front of the plane, collect trash and serve a few people water and turn off the seat belt light. Also didn’t enforce people putting their seats into the upright position and allowed two passengers to remain reclined during landing. They seemed out to lunch completely. Usually my experience on Delta is much better.

Arrived early, comfortable seats (Comfort+). Mediocre food, poor wifi (intermittent).

Long story short, it was one of the better flight experiences I've had in some time when compared with other airlines.

Flight was great! This flight from Atlanta was even better than when I paid for Comfort from SNA to Atlanta.

Connection flights should be spaced out farther because too close I missed my connection.

Definitely a southern flavor. Cordiality was evident even though no drinks or snacks were served.

On time! There were plenty of airport employees who were able to keep us moving in the right direction. The crew on the plane were professional.

Left /arrived on time. Decent seat space. Like the wifi/plugs and entertainment. Windows and tray table were kinda gross. Attendants didn't start snack service til 40mins before landing. Two rows before us, captain came on to say there's turbulence and recalled staff to seats. So, no drink/snack. Later, attendants didn't stop to see if we had trash nor even look our way. Felt invisible! Almost all pilot announcements were not only unintelligible, but so quiet. We had no idea what she said.

Average seat comfort, a drink and chips were provided, early boarding because we checked a carryon at the gate was nice. Ticket pricing shenanigans, including fees to pick a seat, check a bag, and get food onboard - evidence the industry is reinvigorating last century’s strategies- destroys the experience before one ever arrives at the airport. It’s difficult to recognize any value or sustain loyalty in the end-to-end process making air travel more drudgery than pleasure.

Gate agent was unhelpful for handicapped boarding. Flight attendant seemed untrained.

Packed flight, which makes it tough on crew and boarding staff (and the customers of course). But this was great boarding, clear instructions, etc. Traveling on the weekends are always fraught with danger as you have families and less frequent flyers thus more confusion. But this flight went as planned.

Destroyed my suitcase. Tired of talking about it. Cancelling my unite mileage plus account.

Read the fine print. This was my flight home. I booked my flight for the quickest way home. Had a carry-on and a personal item. Same as my outbound flight. Apparently I needed to pre-pay extra for my carry-on. When I checked in, I was told that I had to check it. I said I’ll pay for it, and was told that this wasn’t an option anymore. They said I still had to pay $50 to check my carry-on. I told them I’ll pay whatever to just carry it in as intended. I was not allowed, so eventually I paid $50 to check my carry-on under a plane that was half full, with overhead compartments that were even less full. My white carry-on suitcase was practically destroyed getting from Idaho falls to Denver to Orange County. The low price air fair was a bait and switch. Got me to the gate, made me pay extra, then didn’t even allow me to pay for a carry on. Not to mention that I paid the $8 for WiFi that didn’t work. All to get my suitcase destroyed. I don’t think I’m going to even keep my Untied mileage plus membership and card. Apparently, membership does not have its privileges for this one.

The flight was delayed, they didn’t even have water for the toilets or for drinks

Even through the flight was delayed due to storms near IAH The flight was great! The crew was so hospitable and professional

I flew from Santa Fe to Denver to catch a flight to London and the transfer of my luggage on arrival at Denver to the London flight worked perfectly. The crew on the ground and on board for the London flight were so friendly and efficient.

Boarded early; and arrived home 40 mins early. After a long flight, it’s nice to be back home early. These flights have no amenities; no snacks. So need to bring your own

Boarded early, left early, arrived 40 mins early! A win win for me!

New plane was lovely. Crew customer service is always lax but expected. Kraft on time and arrived safely.

These airplanes should be illegal. The seats are two tight, it is a safety issue. Wheelchair support was ridiculously slow. We almost missed our flight.

The flight attendants were extremely sourly and borderline rude. I did not feel appreciated as an AA customer once.

The flight back to Dallas was delayed, which has happened to me several times with American Airlines. There was no announcement, no update sent out, no compensation offered for the inconvenience.

It wa sort of on time; the cab was left with some trash

Our flight from JFK to Madrid was delayed. We had to go from one side of the Madrid airport (Terminal 4s to the far end of terminal 4 - Gate K98) to our gate in less than 30 minutes. Put passport control and security/baggage check and that’s very hard unless you’re Usain Bolt. I called Iberia Airlines and the telephone customer service told me that I was going to have to pay to re-book. Luckily the help desk in the airport (who was dealing with dozens of people from the same JFK-Madrid flight) did not charge us extra to reschedule to a flight 8 hours later. They also gave us a voucher for breakfast and lunch. Glad the actual person at the airport had some actual sense.

As always, most AA flights that we fly are almost ALWAYS delayed and that too multiple times. Very frustrating

Boarding was smooth and seamless and the flight was without incident.

Very hard to beat a British Airways international flight…the crews are always so amazing! One flight attendant that really stood out was Emma…she was very personable and accommodating with any request we had!!

Our flight was repeatedly delayed for maintenance problems: scheduled for 9.30am, eventually delayed to 7pm! Very very inconvenient! AA should have provided a substitute plane much earlier.. On the other hand, Customer Service crew in Charlotte helped us to reach NY (LGA) by late afternoon. Thank you Patricia!! The actual flight was quick and very comfortable. As always a. excellent, professional crew. [no food on a a short hop).

Take-off delayed an hour because of a missing flight officer, so,arrived in Charlotte lates causing many passengers to miss connections. Otherwise a very good flight, safe and comfortable, with an excellent professional crew.

Little time between flight from Dallas to flight to Gainesville. We chose this one, 43 minutes between, because the price for a connection with at least an hour between, was so much higher. Had to ask passengers on the Dallas flight to please allow us to deplane ahead of them. The economy passengers allowed this. We had to walk very fast to the next gate, 35 gates away. Thankfully all in the same terminal. Getting to the small Gainesville plane was a little confusing as you enter an area that is boarding many small planes at the same time. We stood in the wrong line for about 15 seconds before realizing it was not our Gainesville flight. Since I had boarded at this gate in the past, I knew to check the signs carefully so we weren’t lost. The first class seat experience was wonderful. I really enjoyed the upgrade. We were offered an alcohol drink as soon as we sat down. I got something different but it was a great gesture especially since we really had to hurry to make the flight. We had packed expecting we might miss this connection, but made it. Our luggage didn’t miss the flight. American Airlines delivered our bags to our home the next day. That was very convenient!

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

Information on your arrival and departure airports