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Kalispell

$257+ Cheap flights from St. Louis to Kalispell (STL - FCA)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/5. Fares are subject to change and may not be available on all flights or dates of travel.
STL — FCA
Nov 27 — Dec 41
Thu 11/27
Thu 12/4
1 adult, Economy
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1. Tell us where you want to go

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Cheapflights Tip: The best prices from Lambert-St Louis to Kalispell Glacier Park are usually found in December or November, booked 81 days in advance, depart on a Wednesday or Tuesday and return on a Friday

Find flight deals from St. Louis to Kalispell

Cheapest flights from St. Louis to Kalispell
Explore the most affordable flight options available from St. Louis to Kalispell. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 28, 2025.

This Delta deal was found by Cheapflights users on 10/27. 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.
Fri 12/56:30 amSTL - FCA
1 stop6h 01mDelta
Wed 12/106:06 pmFCA - STL
1 stop5h 55mDelta
Deal found 10/27$257
This United Airlines deal was found by Cheapflights users on 10/26. 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.
Mon 11/104:43 pmSTL - FCA
1 stop6h 01mUnited Airlines
Fri 11/142:38 pmFCA - STL
1 stop6h 16mUnited Airlines
Deal found 10/26$274
This Delta deal was found by Cheapflights users on 10/26. 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.
Mon 11/102:36 pmSTL - FCA
2 stops9h 24mDelta
Fri 11/146:06 pmFCA - STL
1 stop5h 40mDelta
Deal found 10/26$314
This Delta deal was found by Cheapflights users on 10/27. 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.
Tue 11/48:53 amSTL - FCA
1 stop6h 36mDelta
Sat 11/83:24 pmFCA - STL
1 stop6h 43mDelta
Deal found 10/27$379

Cheap flight deals from St. Louis to Kalispell

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Kalispell (FCA). 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 October 28, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$257
(Delta)

Popular in

July

Cheapest in

December

Average price

$424
Provider with most accurate pricing for Lambert-St Louis-Kalispell Glacier Park flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-Kalispell Glacier Park flights.
Search Deals
From Lambert-St Louis to Kalispell Glacier Park
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($85 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Kalispell 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 October 28, 2025.
Use the filters below to find and compare flights from St. Louis to Kalispell that are best for you.

Fly from

St. Louis

Fly to

Kalispell

Route

Depart

Return

Price

St. LouisKalispell

STL - FCA

STLFCA

Lambert-St Louis

Sat 12/6

6:30 am-11:31 am

1 stop6h 01m

Kalispell Glacier Park

Wed 12/10

5:00 am-1:30 pm

1 stop7h 30m

$257

St. LouisKalispell

STL - FCA

STLFCA

Lambert-St Louis

Fri 12/5

6:30 am-11:31 am

1 stop6h 01m

Kalispell Glacier Park

Wed 12/10

5:00 am-5:10 pm

2 stops11h 10m

$262

St. LouisKalispell

STL - FCA

STLFCA

Lambert-St Louis

Thu 1/22

2:50 pm-11:58 pm

1 stop10h 08m

Kalispell Glacier Park

Mon 1/26

6:25 am-1:54 pm

1 stop6h 29m

$269

St. LouisKalispell

STL - FCA

STLFCA

Lambert-St Louis

Mon 11/10

2:36 pm-11:00 pm

2 stops9h 24m

Kalispell Glacier Park

Fri 11/14

6:06 pm-12:46 am

1 stop5h 40m

$314

St. LouisKalispell

STL - FCA

STLFCA

Lambert-St Louis

Mon 11/10

4:43 pm-9:44 pm

1 stop6h 01m

Kalispell Glacier Park

Fri 11/14

2:38 pm-9:54 pm

1 stop6h 16m

$339

St. LouisKalispell

STL - FCA

STLFCA

Lambert-St Louis

Tue 11/4

8:53 am-2:29 pm

1 stop6h 36m

Kalispell Glacier Park

Sat 11/8

3:24 pm-11:07 pm

1 stop6h 43m

$379

St. LouisKalispell

STL - FCA

STLFCA

Lambert-St Louis

Fri 12/26

10:10 pm-5:05 pm

1 stop19h 55m

$343

St. LouisKalispell

STL - FCA

STLFCA

Lambert-St Louis

Fri 12/26

3:30 pm-12:15 am

2 stops33h 45m

$713

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Compare providers for flights from St. Louis to Kalispell

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 St. Louis to Kalispell in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 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 St. Louis-Kalispell flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on St. Louis-Kalispell flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from St. Louis-Kalispell flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Louis-Kalispell flights, Cheapflights users trust eDreams the most. eDreams 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 St. Louis-Kalispell 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 St. Louis to Kalispell

Have a flexible travel schedule? Discover the best time to fly to Kalispell from St. Louis 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 St. Louis to Kalispell

How far ahead should I book a flight from St. Louis to Kalispell?

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Kalispell. Price data was last updated on October 24, 2025.

Booking 81 days in advance of your planned departure date is, on average, the best time to get cheap flights from St. Louis to Kalispell. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from St. Louis to Kalispell?

Currently, November is the cheapest month in which you can book a flight from St. Louis to Kalispell (average of $240). Flying from St. Louis to Kalispell in February is currently the most expensive (average of $356). 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 STL to FCA?

Find hourly flight availability from St. Louis to Kalispell. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 28, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 24% on flights from St. Louis to Kalispell by exploring options for tickets in the afternoon.

Reviews of airlines servicing Kalispell

Get insights into the airlines that provide service to Kalispell. 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 Kalispell. Reviews last updated October 28, 2025.
Read through reviews of airlines operating flights from St. Louis to Kalispell, such as Alaska Airlines, Delta, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,203 reviews

Boarding

8.1

Comfort

7.8

Crew

8.5

Entertainment

7.0

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Alaska Airlines
8.0
Very good
11,203 reviews
Alaska Airlines
8.0
Very good
11,203 reviews

Boarding

8.1

Comfort

7.8

Crew

8.5

Entertainment

7.0

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Delta
7.9
Good
7,994 reviews
Alaska Airlines
8.0
Very good
11,203 reviews

Boarding

8.1

Comfort

7.8

Crew

8.5

Entertainment

7.0

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
United Airlines
7.4
Good
9,001 reviews
Alaska Airlines
8.0
Very good
11,203 reviews

Boarding

8.1

Comfort

7.8

Crew

8.5

Entertainment

7.0

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
American Airlines
7.2
Good
11,032 reviews
Alaska Airlines
8.0
Very good
11,203 reviews

Boarding

8.1

Comfort

7.8

Crew

8.5

Entertainment

7.0

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.

Related info for your journey

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

  • How long is the flight from St. Louis to Kalispell?

    There are many flights that can get you from St. Louis to Kalispell in 6h 01m. Fly via Delta or Alaska Airlines to get the fastest option. The distance from St. Louis to Kalispell is about 1358 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from St. Louis to Kalispell round-trip?

    Currently priced at $251, American Airlines will fly you from St. Louis to Kalispell and back. In addition to American Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Alaska Airlines and Delta - these airlines can fly you to your destination from $257 and $306, respectively. American Airlines is currently priced 44% below the average price you’ll pay for this route.

  • Can I find deals for flights from St. Louis to Kalispell that include hotel bookings?

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

  • How can I find direct flights from St. Louis to Kalispell?

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

  • Can I find deals for business class flights from St. Louis to Kalispell?

    Yes. Cheapflights offers flight deals from St. Louis to Kalispell 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 St. Louis to Kalispell?

    Currently, November is the cheapest month in which you can book a flight from St. Louis to Kalispell (average of $240). Flying from St. Louis to Kalispell in February is currently the most expensive (average of $356). 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
East Glacier Park

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Top 4 airlines flying from St. Louis to Kalispell

Discover the top 4 airlines that operate flights from St. Louis to Kalispell. 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 October 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$251Average$484FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$257Average$487FlexibilityNo cancel feeOn-time75%
DeltaCheapest$306Average$425FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$308Average$516FlexibilityNo cancel feeOn-time69%

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