$149+ 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 11/4. Fares are subject to change and may not be available on all flights or dates of travel.
STL — FCA
Jun 18 — Jun 251
Round-trip
1 adult, Economy
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Find cheap flights from St. Louis to Kalispell 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.Cheap flight deals from St. Louis to Kalispell
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One-way
Cheapest flights from St. Louis to KalispellExplore 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 May 19, 2026.
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 May 19, 2026.
This Delta deal was found by Cheapflights users on 5/18. 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 8/195:42 pm
STL
- FCA
1 stop7h 09m
Delta
Tue 8/253:14 pm
FCA
- STL
1 stop7h 12m
Delta
Deal found 5/18![Delta logo]()
$297
This American Airlines deal was found by Cheapflights users on 5/18. 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.
Wed 6/39:28 am
STL
- FCA
1 stop7h 35m
American Airlines
Mon 6/84:48 pm
FCA
- STL
1 stop6h 28m
American Airlines
Deal found 5/18![American Airlines logo]()
$303
This Delta deal was found by Cheapflights users on 5/15. 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.
Sat 5/305:00 pm
STL
- FCA
1 stop7h 14m
Delta
Wed 6/36:07 pm
FCA
- STL
1 stop5h 23m
Delta
Deal found 5/15![Delta logo]()
$309
This American Airlines deal was found by Cheapflights users on 5/16. 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.
Wed 6/107:04 am
STL
- FCA
1 stop8h 55m
American Airlines
Mon 6/153:51 pm
FCA
- STL
1 stop7h 08m
American Airlines
Deal found 5/16![American Airlines logo]()
$338
This Delta deal was found by Cheapflights users on 5/19. 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 6/161:59 pm
STL
- FCA
2 stops10h 39m
Delta
Tue 6/236:10 pm
FCA
- STL
1 stop5h 33m
Delta
Deal found 5/19![Delta logo]()
$343
This Delta deal was found by Cheapflights users on 5/18. 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 6/28:53 am
STL
- FCA
1 stop5h 40m
Delta
Tue 6/166:55 am
FCA
- STL
2 stops9h 28m
Delta
Deal found 5/18![Delta logo]()
$349
This United Airlines deal was found by Cheapflights users on 5/16. 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.
Thu 5/285:10 am
STL
- FCA
1 stop5h 51m
United Airlines
Sat 6/62:33 pm
FCA
- STL
1 stop5h 24m
United Airlines
Deal found 5/16![United Airlines logo]()
$363
This Delta deal was found by Cheapflights users on 5/16. 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 5/266:21 am
STL
- FCA
1 stop8h 12m
Delta
Sat 6/66:07 pm
FCA
- STL
2 stops13h 09m
Delta
Deal found 5/16![Delta logo]()
$368
Best flights from St. Louis to KalispellDiscover carefully curated flight deals from St. Louis to Kalispell that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 19, 2026.
Discover carefully curated flight deals from St. Louis to Kalispell that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 19, 2026.
This Delta deal was found by Cheapflights users on 5/19. 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 8/115:42 pm
STL
- FCA
1 stop7h 09m
Delta
Mon 8/176:11 pm
FCA
- STL
1 stop5h 30m
Delta
Deal found 5/19![Delta logo]()
$297
This Alaska Airlines deal was found by Cheapflights users on 5/15. 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.
Fri 8/215:59 pm
STL
- FCA
1 stop20h 29m
Alaska Airlines
Fri 8/286:15 am
FCA
- STL
1 stop6h 49m
Alaska Airlines
Deal found 5/15![Alaska Airlines logo]()
$473
This United Airlines deal was found by Cheapflights users on 5/19. 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.
Wed 6/311:25 am
STL
- FCA
2 stops11h 22m
United Airlines
Mon 6/85:28 pm
FCA
- STL
1 stop5h 29m
United Airlines
Deal found 5/19![United Airlines logo]()
$495
This Delta deal was found by Cheapflights users on 5/18. 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 8/53:50 pm
STL
- FCA
2 stops8h 03m
Delta
Wed 8/126:20 am
FCA
- STL
1 stop7h 50m
Delta
Deal found 5/18![Delta logo]()
$343
This Delta deal was found by Cheapflights users on 5/18. 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 6/37:00 am
STL
- FCA
1 stop6h 39m
Delta
Mon 6/86:10 pm
FCA
- STL
2 stops13h 06m
Delta
Deal found 5/18![Delta logo]()
$409
This Delta deal was found by Cheapflights users on 5/18. 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 8/216:00 am
STL
- FCA
2 stops12h 29m
Delta
Fri 8/2812:02 pm
FCA
- STL
1 stop5h 37m
Delta
Deal found 5/18![Delta logo]()
$409
This Delta deal was found by Cheapflights users on 5/14. 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 6/155:36 pm
STL
- FCA
1 stop7h 02m
Delta
Wed 6/1712:22 pm
FCA
- STL
2 stops10h 01m
Delta
Deal found 5/14![Delta logo]()
$483
Last-minute flights from St. Louis to KalispellDiscover last-minute flight deals from St. Louis to Kalispell. Data last updated May 19, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Kalispell. Data last updated May 19, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 5/16. 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 5/266:21 am
STL
- FCA
1 stop8h 12m
Delta
Sat 6/66:07 pm
FCA
- STL
2 stops13h 09m
Delta
Deal found 5/16![Delta logo]()
$368
This Delta deal was found by Cheapflights users on 5/16. 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 5/287:00 am
STL
- FCA
1 stop6h 39m
Delta
Sat 6/65:13 am
FCA
- STL
1 stop7h 19m
Delta
Deal found 5/16![Delta logo]()
$363
This Delta deal was found by Cheapflights users on 5/15. 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.
Sat 5/305:00 pm
STL
- FCA
1 stop7h 14m
Delta
Wed 6/36:07 pm
FCA
- STL
1 stop5h 23m
Delta
Deal found 5/15![Delta logo]()
$309
This Delta deal was found by Cheapflights users on 5/18. 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 6/28:53 am
STL
- FCA
1 stop5h 40m
Delta
Tue 6/166:55 am
FCA
- STL
2 stops9h 28m
Delta
Deal found 5/18![Delta logo]()
$349
This American Airlines deal was found by Cheapflights users on 5/18. 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.
Wed 6/39:28 am
STL
- FCA
1 stop7h 35m
American Airlines
Mon 6/84:48 pm
FCA
- STL
1 stop6h 28m
American Airlines
Deal found 5/18![American Airlines logo]()
$303
This American Airlines deal was found by Cheapflights users on 5/15. 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.
Fri 6/59:09 am
STL
- FCA
1 stop7h 53m
American Airlines
Wed 6/103:51 pm
FCA
- STL
1 stop7h 08m
American Airlines
Deal found 5/15![American Airlines logo]()
$297
This American Airlines deal was found by Cheapflights users on 5/16. 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.
Wed 6/107:04 am
STL
- FCA
1 stop8h 55m
American Airlines
Mon 6/153:51 pm
FCA
- STL
1 stop7h 08m
American Airlines
Deal found 5/16![American Airlines logo]()
$338
This Delta deal was found by Cheapflights users on 5/19. 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 6/161:59 pm
STL
- FCA
2 stops10h 39m
Delta
Tue 6/236:10 pm
FCA
- STL
1 stop5h 33m
Delta
Deal found 5/19![Delta logo]()
$343
One-way flights from St. Louis to KalispellSearch for one-way flight options from St. Louis to Kalispell. Find affordable one-way fares based on user searches. Data last updated May 19, 2026.
Search for one-way flight options from St. Louis to Kalispell. Find affordable one-way fares based on user searches. Data last updated May 19, 2026.
This United Airlines deal was found by Cheapflights users on 5/14. 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.
Wed 11/44:30 pm
STL
- FCA
1 stop6h 00m
United Airlines
Deal found 5/14![United Airlines logo]()
$149
This Kiwi.com deal was found by Cheapflights users on 5/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/158:08 pm
STL
- FCA
3 stops38h 52m
Multiple Airlines
Deal found 5/16![Multiple Airlines logo]()
$286
This American Airlines deal was found by Cheapflights users on 5/16. 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.
Wed 7/157:56 pm
STL
- FCA
1 stop45h 13m
American Airlines
Deal found 5/16![American Airlines logo]()
$467
This Kiwi.com deal was found by Cheapflights users on 5/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/46:10 am
STL
- FCA
3 stops32h 15m
Multiple Airlines
Deal found 5/14![Multiple Airlines logo]()
$1,001
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 May 19, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $297 (Delta) |
One-way from | $149 (United Airlines) |
Popular in | July |
Cheapest in | February |
Average price | $358 |
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 May 19, 2026.
Use the filters below to find and compare flights from St. Louis to Kalispell that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
St. LouisKalispell
STL - FCA
STLFCA
Lambert-St Louis
Tue 8/11
5:42 pm-11:51 pm
1 stop7h 09m
Kalispell Glacier Park
Mon 8/17
6:11 pm-12:41 am
1 stop5h 30m
$297
St. LouisKalispell
STL - FCA
STLFCA
Lambert-St Louis
Wed 8/5
3:50 pm-10:53 pm
2 stops8h 03m
Kalispell Glacier Park
Wed 8/12
6:20 am-3:10 pm
1 stop7h 50m
$343
St. LouisKalispell
STL - FCA
STLFCA
Lambert-St Louis
Wed 6/3
7:00 am-12:39 pm
1 stop6h 39m
Kalispell Glacier Park
Mon 6/8
6:10 pm-8:16 am
2 stops13h 06m
$409
St. LouisKalispell
STL - FCA
STLFCA
Lambert-St Louis
Fri 8/21
6:00 am-5:29 pm
2 stops12h 29m
Kalispell Glacier Park
Fri 8/28
12:02 pm-6:39 pm
1 stop5h 37m
$409
St. LouisKalispell
STL - FCA
STLFCA
Lambert-St Louis
Fri 8/21
5:59 pm-1:28 pm
1 stop20h 29m
Kalispell Glacier Park
Fri 8/28
6:15 am-2:04 pm
1 stop6h 49m
$473
St. LouisKalispell
STL - FCA
STLFCA
Lambert-St Louis
Mon 6/15
5:36 pm-11:38 pm
1 stop7h 02m
Kalispell Glacier Park
Wed 6/17
12:22 pm-11:23 pm
2 stops10h 01m
$483
St. LouisKalispell
STL - FCA
STLFCA
Lambert-St Louis
Wed 6/3
11:25 am-9:47 pm
2 stops11h 22m
Kalispell Glacier Park
Mon 6/8
5:28 pm-11:57 pm
1 stop5h 29m
$495
Cheapest one-way
Quickest one-way
St. LouisKalispell
STL - FCA
STLFCA
Lambert-St Louis
Wed 11/4
4:30 pm-9:30 pm
1 stop6h 00m
$149
St. LouisKalispell
STL - FCA
STLFCA
Lambert-St Louis
Wed 7/15
8:08 pm-10:00 am
3 stops38h 52m
$286
St. LouisKalispell
STL - FCA
STLFCA
Lambert-St Louis
Wed 7/15
7:56 pm-4:09 pm
1 stop45h 13m
$467
Showing 1-10 of 11 resultsSorted by cheapest first
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 May.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- 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.
STL-FCA
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?
Booking 72 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, February is the cheapest month in which you can book a flight from St. Louis to Kalispell (average of $280). Flying from St. Louis to Kalispell in July is currently the most expensive (average of $679). 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 May 19, 2026.
Read through reviews of airlines operating flights from St. Louis to Kalispell, such as Alaska Airlines,Delta, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.8
Entertainment
7.0
Crew
8.5
Overall
7.9
Food
7.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Comfort
7.8
Entertainment
7.0
Crew
8.5
Overall
7.9
Food
7.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Comfort
7.8
Entertainment
7.0
Crew
8.5
Overall
7.9
Food
7.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Comfort
7.8
Entertainment
7.0
Crew
8.5
Overall
7.9
Food
7.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Comfort
7.8
Entertainment
7.0
Crew
8.5
Overall
7.9
Food
7.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
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.
Traveling to a place near Kalispell?
Book flights to Kalispell if you plan to visit one of these locationsColumbia Falls
East Glacier Park
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Other flights to Kalispell
Explore flights to Kalispell departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on May 19, 2026.
St. Louis and Kalispell flights
Browse other St. Louis and Kalispell flight options. Last updated on May 19, 2026.
Other flights from St. Louis
Browse through other flights departing from St. Louis. Flights are based on user searches made on Cheapflights and were last updated on May 19, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 May 19, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$237 | Average$438 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$256 | Average$367 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$256 | Average$444 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$257 | Average$447 | FlexibilityNo cancel fee | On-time75% |