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Kalispell

$185+ Cheap flights from St. Louis to Kalispell (STL - FCA)

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 2/14. Fares are subject to change and may not be available on all flights or dates of travel.
STL — FCA
Feb 26 — Mar 51
Thu 2/26
Thu 3/5
1 adult, Economy
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Cheap 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 January 27, 2026.

This United Airlines deal was found by Cheapflights users on 1/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/235:15 am
STL
-
FCA
1 stop5h 53m
United Airlines
Tue 5/265:00 pm
FCA
-
STL
1 stop5h 58m
United Airlines
Deal found 1/27$252
This Delta deal was found by Cheapflights users on 1/25. 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.
Thu 4/96:29 am
STL
-
FCA
1 stop7h 59m
Delta
Mon 4/132:49 pm
FCA
-
STL
1 stop7h 25m
Delta
Deal found 1/25$257
This Delta deal was found by Cheapflights users on 1/27. 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.
Sun 8/232:18 pm
STL
-
FCA
2 stops10h 28m
Delta
Thu 8/273:00 pm
FCA
-
STL
1 stop7h 01m
Delta
Deal found 1/27$273
This United Airlines deal was found by Cheapflights users on 1/24. 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 5/256:00 am
STL
-
FCA
1 stop6h 41m
United Airlines
Sun 5/3112:35 pm
FCA
-
STL
1 stop7h 36m
United Airlines
Deal found 1/24$283
This Alaska Airlines deal was found by Cheapflights users on 1/24. 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.
Tue 4/213:50 pm
STL
-
FCA
1 stop8h 57m
Alaska Airlines
Wed 4/226:35 am
FCA
-
STL
1 stop8h 15m
Alaska Airlines
Deal found 1/24$304
This Delta deal was found by Cheapflights users on 1/26. 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 2/236:40 pm
STL
-
FCA
1 stop6h 10m
Delta
Thu 2/263:20 pm
FCA
-
STL
1 stop7h 03m
Delta
Deal found 1/26$309
This United Airlines deal was found by Cheapflights users on 1/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/225:15 am
STL
-
FCA
1 stop5h 53m
United Airlines
Mon 5/255:00 pm
FCA
-
STL
1 stop5h 58m
United Airlines
Deal found 1/27$311
This Alaska Airlines deal was found by Cheapflights users on 1/26. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/147:56 pm
STL
-
FCA
1 stop15h 36m
Alaska Airlines
Tue 5/1911:12 am
FCA
-
STL
1 stop6h 48m
Alaska Airlines
Deal found 1/26$320
This Travelocity deal was found by Cheapflights users on 1/26. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/153:24 pm
STL
-
FCA
1 stop9h 35m
Alaska Airlines
Sat 9/192:10 pm
FCA
-
STL
1 stop8h 49m
Alaska Airlines
Deal found 1/26$324
This Delta deal was found by Cheapflights users on 1/26. 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.
Tue 9/82:18 pm
STL
-
FCA
2 stops10h 28m
Delta
Tue 9/156:59 am
FCA
-
STL
1 stop6h 32m
Delta
Deal found 1/26$333
This Delta deal was found by Cheapflights users on 1/25. 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.
Wed 8/192:18 pm
STL
-
FCA
2 stops10h 28m
Delta
Tue 8/256:59 am
FCA
-
STL
1 stop6h 32m
Delta
Deal found 1/25$344

Find 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 January 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$252
(United Airlines)

One-way from

$185
(Kiwi.com)

Popular in

July

Cheapest in

November

Average price

$520
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
One-way flight from Lambert-St Louis to Kalispell Glacier Park
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($74 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($19 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
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 January 27, 2026.
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

Thu 4/23

6:45 pm-11:27 pm

1 stop5h 42m

Kalispell Glacier Park

Thu 4/30

2:49 pm-11:13 pm

1 stop7h 24m

$257

St. LouisKalispell

STL - FCA

STLFCA

Lambert-St Louis

Sat 5/30

5:15 am-10:08 am

1 stop5h 53m

Kalispell Glacier Park

Wed 6/3

1:20 pm-11:58 pm

2 stops9h 38m

$257

St. LouisKalispell

STL - FCA

STLFCA

Lambert-St Louis

Fri 4/17

6:45 pm-11:27 pm

1 stop5h 42m

Kalispell Glacier Park

Tue 4/21

2:49 pm-11:13 pm

1 stop7h 24m

$257

St. LouisKalispell

STL - FCA

STLFCA

Lambert-St Louis

Thu 4/9

6:29 am-1:28 pm

1 stop7h 59m

Kalispell Glacier Park

Mon 4/13

2:49 pm-11:14 pm

1 stop7h 25m

$257

St. LouisKalispell

STL - FCA

STLFCA

Lambert-St Louis

Mon 5/25

6:00 am-11:41 am

1 stop6h 41m

Kalispell Glacier Park

Sun 5/31

12:35 pm-9:11 pm

1 stop7h 36m

$283

St. LouisKalispell

STL - FCA

STLFCA

Lambert-St Louis

Mon 2/23

6:40 pm-11:50 pm

1 stop6h 10m

Kalispell Glacier Park

Thu 2/26

3:20 pm-11:23 pm

1 stop7h 03m

$309

St. LouisKalispell

STL - FCA

STLFCA

Lambert-St Louis

Tue 4/21

3:50 pm-11:47 pm

1 stop8h 57m

Kalispell Glacier Park

Wed 4/22

6:35 am-3:50 pm

1 stop8h 15m

$320

St. LouisKalispell

STL - FCA

STLFCA

Lambert-St Louis

Thu 5/14

7:56 pm-10:32 am

1 stop15h 36m

Kalispell Glacier Park

Tue 5/19

6:20 am-3:50 pm

1 stop8h 30m

$320

St. LouisKalispell

STL - FCA

STLFCA

Lambert-St Louis

Fri 5/22

6:00 am-11:41 am

1 stop6h 41m

Kalispell Glacier Park

Wed 5/27

5:00 pm-11:58 pm

1 stop5h 58m

$353

St. LouisKalispell

STL - FCA

STLFCA

Lambert-St Louis

Sat 2/14

6:41 pm-4:57 pm

1 stop23h 16m

$185

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/26

Showing 1-10 of 18 results
1
2

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 January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Kalispell flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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 January 23, 2026.

Booking 78 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 $230). Flying from St. Louis to Kalispell in July is currently the most expensive (average of $347). 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.

How much does it cost to fly round-trip from St. Louis to Kalispell?

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 January 27, 2026.
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
11,795 reviews

Boarding

8.1

Entertainment

7.0

Comfort

7.8

Overall

8.0

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Alaska Airlines
8.0
Very good
11,795 reviews
Alaska Airlines
8.0
Very good
11,795 reviews

Boarding

8.1

Entertainment

7.0

Comfort

7.8

Overall

8.0

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Delta
7.9
Good
8,118 reviews
Alaska Airlines
8.0
Very good
11,795 reviews

Boarding

8.1

Entertainment

7.0

Comfort

7.8

Overall

8.0

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
United Airlines
7.4
Good
9,205 reviews
Alaska Airlines
8.0
Very good
11,795 reviews

Boarding

8.1

Entertainment

7.0

Comfort

7.8

Overall

8.0

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
American Airlines
7.2
Good
11,197 reviews
Alaska Airlines
8.0
Very good
11,795 reviews

Boarding

8.1

Entertainment

7.0

Comfort

7.8

Overall

8.0

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading

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 5h 42m. Fly via Delta or United 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 Delta and Alaska Airlines - these airlines can fly you to your destination from $256 and $257, respectively. American Airlines is currently priced 43% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from St. Louis to Kalispell one-way?

    For one-way options, check prices for Delta. According to our data, you can fly for as low as $128. Users have also found prices from $159 and $192 on United Airlines and American Airlines, respectively.

  • 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 $230). Flying from St. Louis to Kalispell in July is currently the most expensive (average of $347). 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
Columbia Falls
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 January 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$251Average$482FlexibilityNo cancel feeOn-time71%
DeltaCheapest$256Average$384FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$257Average$414FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$278Average$472FlexibilityNo cancel feeOn-time69%

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