HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Boston

$149+ Cheap flights from Kalispell to Boston (FCA - BOS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/14. Fares are subject to change and may not be available on all flights or dates of travel.
FCA — BOS
may. 4 — may. 111
dom. 5/4
dom. 5/11
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Kalispell to Boston with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Kalispell Glacier Park to Boston Logan Intl are usually found in January or April, booked 41 days in advance, depart on a Monday or Saturday and return on a Tuesday

Cheap flight deals from Kalispell to Boston

Discover tips and strategies to find the most affordable flight options for your journey from Kalispell (FCA) to Boston (BOS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated abril 29, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$223
(American Airlines)

One-way from

$149
(Delta)

Popular in

July

Cheapest in

January

Average price

$489
Provider with most accurate pricing for Kalispell Glacier Park-Boston Logan Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Kalispell Glacier Park-Boston Logan Intl flights.
Search Deals
From Kalispell Glacier Park to Boston Logan Intl
Search Deals
One-way flight from Kalispell Glacier Park to Boston Logan Intl
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($92 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

Find flight deals from Kalispell to Boston

Cheapest flights from Kalispell to Boston
Explore the most affordable flight options available from Kalispell to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on abril 29, 2025.

This American Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 6/61:10 pmFCA - BOS
1 stop7h 28mAmerican Airlines
mar. 6/108:21 amBOS - FCA
1 stop9h 48mAmerican Airlines
Deal found 4/29$223
This United Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/58:15 amFCA - BOS
1 stop9h 04mUnited Airlines
dom. 9/76:00 amBOS - FCA
1 stop7h 35mUnited Airlines
Deal found 4/29$317
This Delta deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 7/16:11 pmFCA - BOS
1 stop10h 17mDelta
mié. 7/26:05 pmBOS - FCA
1 stop7h 41mDelta
Deal found 4/29$335
This Alaska Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 6/16:32 pmFCA - BOS
2 stops21h 20mAlaska Airlines
jue. 6/56:00 amBOS - FCA
1 stop9h 00mAlaska Airlines
Deal found 4/29$413
This Hawaiian Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 6/11:40 pmFCA - BOS
1 stop8h 26mHawaiian Airlines
jue. 6/56:00 amBOS - FCA
1 stop9h 00mHawaiian Airlines
Deal found 4/29$438

Cheapflights Fare Finder

Customize your flight search to find flights from Kalispell to Boston that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated abril 29, 2025.
Use the filters below to find and compare flights from Kalispell to Boston that are best for you.

Fly from

Kalispell

Fly to

Boston

Route

Depart

Return

Price

KalispellBoston

FCA - BOS

FCABOS

Kalispell Glacier Park

vie. 6/6

1:10 pm-10:38 pm

1 stop7h 28m

Boston Logan Intl

mar. 6/10

8:21 am-4:09 pm

1 stop9h 48m

$223

KalispellBoston

FCA - BOS

FCABOS

Kalispell Glacier Park

vie. 9/5

8:15 am-7:19 pm

1 stop9h 04m

Boston Logan Intl

dom. 9/7

6:00 am-11:35 am

1 stop7h 35m

$317

KalispellBoston

FCA - BOS

FCABOS

Kalispell Glacier Park

mar. 7/1

6:11 pm-6:28 am

1 stop10h 17m

Boston Logan Intl

mié. 7/2

6:05 pm-11:46 pm

1 stop7h 41m

$335

KalispellBoston

FCA - BOS

FCABOS

Kalispell Glacier Park

dom. 6/1

6:32 pm-5:52 pm

2 stops21h 20m

Boston Logan Intl

jue. 6/5

6:00 am-1:00 pm

1 stop9h 00m

$413

KalispellBoston

FCA - BOS

FCABOS

Kalispell Glacier Park

dom. 6/1

1:40 pm-12:06 am

1 stop8h 26m

Boston Logan Intl

jue. 6/5

6:00 am-1:00 pm

1 stop9h 00m

$438

KalispellBoston

FCA - BOS

FCABOS

Kalispell Glacier Park

sáb. 6/14

6:11 pm-6:28 am

1 stop10h 17m

$149

KalispellBoston

FCA - BOS

FCABOS

Kalispell Glacier Park

dom. 6/15

8:00 pm-8:00 am

1 stop10h 00m

$189

KalispellBoston

FCA - BOS

FCABOS

Kalispell Glacier Park

sáb. 9/13

4:09 pm-6:00 am

1 stop11h 51m

$206

KalispellBoston

FCA - BOS

FCABOS

Kalispell Glacier Park

sáb. 6/28

2:40 pm-1:30 am

1 stop8h 50m

$240

KalispellBoston

FCA - BOS

FCABOS

Kalispell Glacier Park

sáb. 8/9

4:15 pm-6:00 am

1 stop11h 45m

$255

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Compare providers for flights from Kalispell to Boston

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Kalispell to Boston in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Kalispell-Boston flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Kalispell-Boston flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Kalispell-Boston flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Kalispell-Boston flights, Cheapflights users trust Expedia the most. Expedia has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Kalispell-Boston flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Kalispell to Boston

Have a flexible travel schedule? Discover the best time to fly to Boston from Kalispell with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

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

Use this chart to determine the optimal time to book a round-trip flight from Kalispell to Boston. Price data was last updated on April 25, 2025.

The price you pay for your flight from Kalispell to Boston may vary depending on when you book. For the best chance of a lower fare, look to book 40 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Kalispell to Boston?

Currently, January is the cheapest month in which you can book a flight from Kalispell to Boston (average of $218). Flying from Kalispell to Boston in July is currently the most expensive (average of $311). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from FCA to BOS?

Find hourly flight availability from Kalispell to Boston. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated abril 29, 2025.

It’s optimal to fly from Kalispell to Boston at noon. By choosing this option you can save up to 21% on the cost of your flight, compared to a flight in the morning.

Rainfall in Boston by month

Plan your trip to Boston by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Boston ranges from 3.1 - 4.0 inches per month. March is typically the wettest month, when rainfall can reach 4.0 in. July is typically the driest time to visit Boston when rainfall is around 3.1 in.

Temperature in Boston by month

Plan your trip to Boston by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Boston, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

Reviews of airlines servicing Boston

Get insights into the airlines that provide service to Boston. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Boston. Reviews last updated abril 29, 2025.
Alaska Airlines
8.0
Very good
9,968 reviews

Entertainment

7.1

Boarding

8.2

Overall

8.0

Crew

8.5

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
9,968 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Entertainment

7.1

Boarding

8.2

Overall

8.0

Crew

8.5

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,936 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Entertainment

7.1

Boarding

8.2

Overall

8.0

Crew

8.5

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,406 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Entertainment

7.1

Boarding

8.2

Overall

8.0

Crew

8.5

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,696 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Entertainment

7.1

Boarding

8.2

Overall

8.0

Crew

8.5

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Entertainment

7.1

Boarding

8.2

Overall

8.0

Crew

8.5

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

Find useful and relevant information for your journey from Kalispell to Boston. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Kalispell to Boston round-trip?

    Our cheapest airline available from Kalispell to Boston is American Airlines. Our recent data shows that you can find tickets from as low as $223 on this airline. Additional options worth looking into are United Airlines and Delta, starting at $317 and $335 round-trip. American Airlines is 60% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Kalispell to Boston one-way?

    For one-way options, check prices for Delta. According to our data, you can fly for as low as $149. Users have also found prices from $189 and $206 on Hawaiian Airlines and United Airlines, respectively.

  • Can I find deals for flights from Kalispell to Boston that include hotel bookings?

    Yes. In addition to deals on Kalispell to Boston flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Kalispell to Boston?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Kalispell to Boston.

  • Can I find deals for business class flights from Kalispell to Boston?

    Yes. Cheapflights offers flight deals from Kalispell to Boston by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Kalispell to Boston?

    Currently, January is the cheapest month in which you can book a flight from Kalispell to Boston (average of $218). Flying from Kalispell to Boston in July is currently the most expensive (average of $311). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Kalispell?

Book flights to Kalispell if you plan to visit one of these locations
Marlborough
Warwick
Cambridge
Waltham
Framingham
Chestnut Hill
Randolph
Brockton
Lowell
Woburn
Somerville
York Beach
Saco
Burlington
West Yarmouth
Smithfield
Lincoln
Salem
Chelsea
Seabrook

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 4 airlines flying from Kalispell to Boston

Discover the top 4 airlines that operate flights from Kalispell to Boston. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated abril 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$306Average$559FlexibilityNo cancel feeOn-time71%
DeltaCheapest$306Average$501FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$397Average$660FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$434Average$655FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.