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 5/3. 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: $664-$467
Alaska Airlines
Tue 6/2Fri 6/5
FCA - BOS • 1 stop
Cheapest one-way
$179
Typical prices: $363-$403
Alaska Airlines
Sun 5/3
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 23m (one-way)
Insights
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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

Tue, Jun 2 - Fri, Jun 5
Alaska Airlines Logo
4:14 pm - 6:24 am
FCA
-
BOS
12h 10m
1 stop
Alaska Airlines Logo
7:11 pm - 10:51 am
BOS
-
FCA
17h 40m
1 stop
$357Alaska Airlines
Thu, May 28 - Tue, Jun 2
American Airlines Logo
1:25 pm - 12:15 am
FCA
-
BOS
8h 50m
1 stop
American Airlines Logo
7:00 am - 4:03 pm
BOS
-
FCA
11h 03m
2 stops
$362American Airlines
Wed, May 27 - Wed, Jun 3
Delta Logo
6:07 pm - 6:20 am
FCA
-
BOS
10h 13m
1 stop
Delta Logo
5:51 am - 1:33 pm
BOS
-
FCA
9h 42m
1 stop
$373Delta
Fri, May 1 - Tue, May 5
Alaska Airlines Logo
1:43 pm - 11:59 pm
FCA
-
BOS
8h 16m
1 stop
Alaska Airlines Logo
6:42 pm - 12:03 pm
BOS
-
FCA
19h 21m
1 stop
$406Alaska Airlines
Tue, Sep 22 - Sat, Oct 3
American Airlines Logo
12:35 pm - 11:55 pm
FCA
-
BOS
9h 20m
1 stop
American Airlines Logo
5:32 am - 12:27 pm
BOS
-
FCA
8h 55m
1 stop
$408American Airlines
Wed, May 27 - Mon, Jun 1
Delta Logo
2:30 pm - 7:41 am
FCA
-
BOS
15h 11m
2 stops
Delta Logo
5:51 am - 1:33 pm
BOS
-
FCA
9h 42m
1 stop
$411Delta
Tue, Sep 22 - Sat, Oct 3
American Airlines Logo
12:35 pm - 11:55 pm
FCA
-
BOS
9h 20m
1 stop
American Airlines Logo
6:30 am - 3:56 pm
BOS
-
FCA
11h 26m
2 stops
$413American Airlines
Thu, May 28 - Tue, Jun 2
American Airlines Logo
12:25 pm - 12:40 am
FCA
-
BOS
10h 15m
2 stops
American Airlines Logo
8:04 am - 4:03 pm
BOS
-
FCA
9h 59m
2 stops
$419American Airlines
Tue, Jun 2 - Fri, Jun 5
Alaska Airlines Logo
6:15 am - 6:24 am
FCA
-
BOS
22h 09m
2 stops
Alaska Airlines Logo
7:11 pm - 10:51 am
BOS
-
FCA
17h 40m
1 stop
$420Alaska Airlines
Fri, May 29 - Mon, Jun 1
Delta Logo
1:20 pm - 11:10 am
FCA
-
BOS
19h 50m
2 stops
Delta Logo
5:51 am - 1:33 pm
BOS
-
FCA
9h 42m
1 stop
$426Delta
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 June.

Good to know

Low seasonDecember
Cheapest flight$179
Best time to beat the crowds with an average 25% drop in price.
Most popular time to fly with an average 11% increase in price.
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 3 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?

    SkyTeam, and Star Alliance are the airline alliances operating flights between Kalispell and Boston, with SkyTeam 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 $504 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 $563 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 airlines flying 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 8405 reviews
8.1Boarding
7.9Comfort
7.8Entertainment
7.2Food
8.5Crew
Airline reviews

While they turned off most cabin lights to allow people to sleep, I was bothered by how bright the side lights still were. It was still quite bright for me in a window seat, when I wish I could have slept!

10.0 ExcellentTeresa, Apr 2026
SMF - LAX
Read more Delta reviews

While they turned off most cabin lights to allow people to sleep, I was bothered by how bright the side lights still were. It was still quite bright for me in a window seat, when I wish I could have slept!

One of the flight attendants was a little cranky. I appreciated the free wifi and plug to charge my laptop

No entertainment. Plane was so small had to pink tag a carry on ive used for 20 years easily on board. The fact the flight got in at midnight, had to wait for crew in fort wayne to allow the plane to approach the gate, THEN had to wait for bag on jet bridge made experience irritating at best.

Crew was great. Near on time departure and early arrival. Snacks are always meh. Not a fan of the "pay for everything including miles " proposal unless base flight rate going to be 100 bucks.

Would have been better if there was a nonstop flight from Tampa to Norfolk or Tampa to New Port News.

Overall Good! The weather delayed our takeoff from Atlanta and our arrival in Miami! If Mother Nature can mess up a flight she will do it every time!

The flight was smooth, the crew was great but the plane was quite old

Everything was great until I lost my water bottle and they can’t seem to locate it. I know I left it on the plane though.

WiFi didn’t work most of the time. The usb chargers would work only occasionally for 5 mins and wouldn’t charge after that. Had to keep trying repeatedly at each of the seats in the row.

The crew bent over backwards to thank us for flying and make us comfortable. The food service was quick and efficient. The Captain communicated and said goodbye and thank you as we departed. They really stood out!

It was a red-eye, but the flight felt surprisingly quick. The seats were very comfortable, and that made resting much easier. I also want to thank the gentleman seated next to me, who graciously moved so my mom could sit beside me. We slept almost the entire way. The cabin crew was respectful in not disturbing us, while also being courteous and professional throughout. Thank you, United.

Packed in plane small uncomfortable seats elbow to elbow nobody wants to be in that situation for the money they paid

Overall flight was ok. Flight attendant was receptive to assisting passengers with tight connections.

Checking in united could not figure out my star alliance gold. Baggage did not get marked priority and didn't receive boarding passes. When got to SFO lounge personal fixed everything Immediately

Very comfortable flight, snacks and drinks were good, good communication from crew. Could have used a little more information on timing of boarding for group 5

Great flight. Got to watch a movie. Smooth flight and early arrival at ORD.

This was the first flight in the morning. We boarded fine. The cabin door was closed and we were ready to go. We were notified by the Captain that ATC issued and ground stop for 40 minutes. So, without even pushing back from the gate, we were already 40 minutes late. We actually were released to push-back and taxi at 30 minutes. But, some passengers had tight connections and were not going to make their connections. Some passengers asked about the delay and the effect on the connections and were told by the cabin attendant that all flights will be delayed and so they should be OK. However, that was not true. My connecting flight was on time and I arrived at IAH with 21 minutes to make my connection. I did and I'm happy about that, but the flight crew should not have given assurances to the passengers who might have missed their connections.

Poor communication, flight was delayed for preventable reasons. I missed my connection.

It was better than excellent. The staff in Mason City were great. The young woman that pushed my wheelchair did more than could be expected of her. She came from India 17 years ago. I don't remember her name.

After arriving in Chicago, we were taxiing for 1.5 hours with infrequent and untruthful updates about the amount of time it would take to arrive at the gate. Minimally, the team could have provided timing expectations that were more truthful, especially one their original expectations were not met.

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

Information on your arrival and departure airports