$149+ Cheap flights from Kalispell to St. Louis (FCA - STL)
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 9/9. Fares are subject to change and may not be available on all flights or dates of travel.
FCA — STL
mai 28 — juin 41
Round-trip
1 adult, Economy
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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
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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 Kalispell to St. Louis
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Best
Last-minute
One-way
Cheapest flights from Kalispell to St. LouisExplore the most affordable flight options available from Kalispell to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on avril 28, 2026.
Explore the most affordable flight options available from Kalispell to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on avril 28, 2026.
This American Airlines deal was found by Cheapflights users on 4/28. 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.
ven. 5/223:50 pm
FCA
- STL
1 stop7h 09m
American Airlines
lun. 5/256:00 am
STL
- FCA
1 stop7h 35m
American Airlines
Deal found 4/28![American Airlines logo]()
$297
This Delta deal was found by Cheapflights users on 4/28. 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.
ven. 5/221:20 pm
FCA
- STL
2 stops9h 01m
Delta
lun. 5/256:21 am
STL
- FCA
1 stop8h 12m
Delta
Deal found 4/28![Delta logo]()
$343
This United Airlines deal was found by Cheapflights users on 4/28. 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.
jeu. 5/211:20 pm
FCA
- STL
2 stops9h 37m
United Airlines
lun. 5/256:00 am
STL
- FCA
1 stop6h 29m
United Airlines
Deal found 4/28![United Airlines logo]()
$348
This Delta deal was found by Cheapflights users on 4/26. 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.
jeu. 5/212:30 pm
FCA
- STL
1 stop7h 51m
Delta
sam. 5/235:00 pm
STL
- FCA
1 stop7h 14m
Delta
Deal found 4/26![Delta logo]()
$363
This United Airlines deal was found by Cheapflights users on 4/26. 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.
sam. 5/2312:35 pm
FCA
- STL
1 stop5h 48m
United Airlines
mer. 5/276:00 am
STL
- FCA
1 stop6h 29m
United Airlines
Deal found 4/26![United Airlines logo]()
$387
This Kiwi.com deal was found by Cheapflights users on 4/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 8/243:39 pm
FCA
- STL
1 stop25h 29m
Multiple Airlines
dim. 8/308:21 pm
STL
- FCA
1 stop16h 03m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$395
This Delta deal was found by Cheapflights users on 4/26. 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.
ven. 5/222:30 pm
FCA
- STL
1 stop7h 51m
Delta
sam. 5/236:04 pm
STL
- FCA
2 stops24h 23m
Delta
Deal found 4/26![Delta logo]()
$403
This Delta deal was found by Cheapflights users on 4/26. 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.
jeu. 5/712:15 pm
FCA
- STL
1 stop5h 48m
Delta
lun. 5/116:21 am
STL
- FCA
1 stop8h 12m
Delta
Deal found 4/26![Delta logo]()
$404
This Delta deal was found by Cheapflights users on 4/26. 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.
jeu. 5/72:30 pm
FCA
- STL
1 stop7h 51m
Delta
sam. 5/95:00 pm
STL
- FCA
1 stop7h 14m
Delta
Deal found 4/26![Delta logo]()
$429
Best flights from Kalispell to St. LouisDiscover carefully curated flight deals from Kalispell to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated avril 28, 2026.
Discover carefully curated flight deals from Kalispell to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated avril 28, 2026.
This American Airlines deal was found by Cheapflights users on 4/28. 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.
jeu. 5/2112:25 pm
FCA
- STL
1 stop6h 11m
American Airlines
lun. 5/259:08 am
STL
- FCA
1 stop7h 55m
American Airlines
Deal found 4/28![American Airlines logo]()
$297
This Delta deal was found by Cheapflights users on 4/26. 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.
jeu. 5/212:30 pm
FCA
- STL
1 stop7h 51m
Delta
sam. 5/235:00 pm
STL
- FCA
1 stop7h 14m
Delta
Deal found 4/26![Delta logo]()
$363
This United Airlines deal was found by Cheapflights users on 4/24. 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.
sam. 5/232:33 pm
FCA
- STL
1 stop8h 24m
United Airlines
mer. 5/276:00 am
STL
- FCA
1 stop6h 29m
United Airlines
Deal found 4/24![United Airlines logo]()
$387
This Kiwi.com deal was found by Cheapflights users on 4/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 8/243:39 pm
FCA
- STL
2 stops22h 09m
Multiple Airlines
dim. 8/308:21 pm
STL
- FCA
1 stop16h 03m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$431
This American Airlines deal was found by Cheapflights users on 4/28. 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.
ven. 5/223:50 pm
FCA
- STL
1 stop7h 09m
American Airlines
lun. 5/256:00 am
STL
- FCA
1 stop7h 35m
American Airlines
Deal found 4/28![American Airlines logo]()
$297
This Delta deal was found by Cheapflights users on 4/23. 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.
mer. 6/106:10 pm
FCA
- STL
1 stop5h 29m
Delta
sam. 6/208:00 am
STL
- FCA
1 stop6h 13m
Delta
Deal found 4/23![Delta logo]()
$404
This Delta deal was found by Cheapflights users on 4/26. 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.
sam. 5/95:13 am
FCA
- STL
1 stop7h 19m
Delta
dim. 5/107:00 am
STL
- FCA
1 stop6h 39m
Delta
Deal found 4/26![Delta logo]()
$474
Last-minute flights from Kalispell to St. LouisDiscover last-minute flight deals from Kalispell to St. Louis. Data last updated avril 28, 2026 and is based on user searches.
Discover last-minute flight deals from Kalispell to St. Louis. Data last updated avril 28, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 4/26. 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.
jeu. 5/712:15 pm
FCA
- STL
1 stop5h 48m
Delta
lun. 5/116:21 am
STL
- FCA
1 stop8h 12m
Delta
Deal found 4/26![Delta logo]()
$404
This Delta deal was found by Cheapflights users on 4/26. 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.
jeu. 5/72:30 pm
FCA
- STL
1 stop7h 51m
Delta
sam. 5/95:00 pm
STL
- FCA
1 stop7h 14m
Delta
Deal found 4/26![Delta logo]()
$429
This United Airlines deal was found by Cheapflights users on 4/28. 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.
jeu. 5/211:20 pm
FCA
- STL
2 stops9h 37m
United Airlines
lun. 5/256:00 am
STL
- FCA
1 stop6h 29m
United Airlines
Deal found 4/28![United Airlines logo]()
$348
This Delta deal was found by Cheapflights users on 4/26. 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.
jeu. 5/212:30 pm
FCA
- STL
1 stop7h 51m
Delta
sam. 5/235:00 pm
STL
- FCA
1 stop7h 14m
Delta
Deal found 4/26![Delta logo]()
$363
This American Airlines deal was found by Cheapflights users on 4/28. 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.
ven. 5/223:50 pm
FCA
- STL
1 stop7h 09m
American Airlines
lun. 5/256:00 am
STL
- FCA
1 stop7h 35m
American Airlines
Deal found 4/28![American Airlines logo]()
$297
This Delta deal was found by Cheapflights users on 4/28. 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.
ven. 5/221:20 pm
FCA
- STL
2 stops9h 01m
Delta
lun. 5/256:21 am
STL
- FCA
1 stop8h 12m
Delta
Deal found 4/28![Delta logo]()
$343
This Delta deal was found by Cheapflights users on 4/26. 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.
ven. 5/222:30 pm
FCA
- STL
1 stop7h 51m
Delta
sam. 5/236:04 pm
STL
- FCA
2 stops24h 23m
Delta
Deal found 4/26![Delta logo]()
$403
This United Airlines deal was found by Cheapflights users on 4/27. 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.
sam. 5/2312:35 pm
FCA
- STL
1 stop5h 48m
United Airlines
mer. 5/276:00 am
STL
- FCA
1 stop6h 29m
United Airlines
Deal found 4/27![United Airlines logo]()
$387
One-way flights from Kalispell to St. LouisSearch for one-way flight options from Kalispell to St. Louis. Find affordable one-way fares based on user searches. Data last updated avril 28, 2026.
Search for one-way flight options from Kalispell to St. Louis. Find affordable one-way fares based on user searches. Data last updated avril 28, 2026.
This United Airlines deal was found by Cheapflights users on 4/24. 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.
mer. 9/95:00 pm
FCA
- STL
1 stop5h 50m
United Airlines
Deal found 4/24![United Airlines logo]()
$149
This American Airlines deal was found by Cheapflights users on 4/28. 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.
jeu. 8/274:40 pm
FCA
- STL
1 stop6h 19m
American Airlines
Deal found 4/28![American Airlines logo]()
$190
This United Airlines deal was found by Cheapflights users on 4/24. 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.
jeu. 8/275:00 pm
FCA
- STL
1 stop5h 50m
United Airlines
Deal found 4/24![United Airlines logo]()
$194
This Delta deal was found by Cheapflights users on 4/27. 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.
jeu. 8/275:25 am
FCA
- STL
2 stops9h 32m
Delta
Deal found 4/27![Delta logo]()
$195
This American Airlines deal was found by Cheapflights users on 4/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 7/242:08 pm
FCA
- STL
1 stop8h 51m
American Airlines
Deal found 4/27![American Airlines logo]()
$263
This Kiwi.com deal was found by Cheapflights users on 4/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 7/2410:50 am
FCA
- STL
2 stops31h 33m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$264
This Alaska Airlines deal was found by Cheapflights users on 4/27. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/88:21 pm
FCA
- STL
2 stops19h 42m
Alaska Airlines
Deal found 4/27![Alaska Airlines logo]()
$330
This Kiwi.com deal was found by Cheapflights users on 4/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 7/1811:11 am
FCA
- STL
3 stops35h 48m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$350
This Kiwi.com deal was found by Cheapflights users on 4/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 7/2010:30 am
FCA
- STL
1 stop30h 35m
Multiple Airlines
Deal found 4/24![Multiple Airlines logo]()
$354
Find flight deals from Kalispell to St. Louis
Discover tips and strategies to find the most affordable flight options for your journey from Kalispell (FCA) to St. Louis (STL). 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 avril 28, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $297 (American Airlines) |
One-way from | $149 (United Airlines) |
Popular in | January |
Cheapest in | November |
Average price | $448 |
Cheapflights Fare Finder
Customize your flight search to find flights from Kalispell to St. Louis 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 avril 28, 2026.
Use the filters below to find and compare flights from Kalispell to St. Louis that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
KalispellSt. Louis
FCA - STL
FCASTL
Kalispell Glacier Park
jeu. 5/21
12:25 pm-7:36 pm
1 stop6h 11m
Lambert-St Louis
lun. 5/25
9:08 am-4:03 pm
1 stop7h 55m
$297
KalispellSt. Louis
FCA - STL
FCASTL
Kalispell Glacier Park
ven. 5/22
3:50 pm-11:59 pm
1 stop7h 09m
Lambert-St Louis
lun. 5/25
6:00 am-12:35 pm
1 stop7h 35m
$297
KalispellSt. Louis
FCA - STL
FCASTL
Kalispell Glacier Park
jeu. 5/21
2:30 pm-11:21 pm
1 stop7h 51m
Lambert-St Louis
sam. 5/23
5:00 pm-11:14 pm
1 stop7h 14m
$363
KalispellSt. Louis
FCA - STL
FCASTL
Kalispell Glacier Park
sam. 5/23
2:33 pm-11:57 pm
1 stop8h 24m
Lambert-St Louis
mer. 5/27
6:00 am-11:29 am
1 stop6h 29m
$387
Quickest round-trip
KalispellSt. Louis
FCA - STL
FCASTL
Kalispell Glacier Park
mer. 6/10
6:10 pm-12:39 am
1 stop5h 29m
Lambert-St Louis
sam. 6/20
8:00 am-1:13 pm
1 stop6h 13m
$404
KalispellSt. Louis
FCA - STL
FCASTL
Kalispell Glacier Park
lun. 8/24
3:39 pm-2:48 pm
2 stops22h 09m
Lambert-St Louis
dim. 8/30
8:21 pm-11:24 am
1 stop16h 03m
$431
KalispellSt. Louis
FCA - STL
FCASTL
Kalispell Glacier Park
sam. 5/9
5:13 am-1:32 pm
1 stop7h 19m
Lambert-St Louis
dim. 5/10
7:00 am-12:39 pm
1 stop6h 39m
$474
Cheapest one-way
Quickest one-way
KalispellSt. Louis
FCA - STL
FCASTL
Kalispell Glacier Park
mer. 9/9
5:00 pm-11:50 pm
1 stop5h 50m
$149
KalispellSt. Louis
FCA - STL
FCASTL
Kalispell Glacier Park
jeu. 8/27
4:40 pm-11:59 pm
1 stop6h 19m
$190
KalispellSt. Louis
FCA - STL
FCASTL
Kalispell Glacier Park
jeu. 8/27
12:32 pm-9:22 pm
1 stop7h 50m
$194
Showing 1-10 of 14 resultsSorted by cheapest first
Compare providers for flights from Kalispell to St. Louis
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 St. Louis in April.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Kalispell-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Kalispell-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Kalispell-St. Louis flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Kalispell-St. Louis 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 Kalispell-St. Louis 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 St. Louis
Have a flexible travel schedule? Discover the best time to fly to St. Louis from Kalispell with our price prediction graph.
FCA-STL
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 St. Louis
Reviews of airlines servicing St. Louis
Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated avril 28, 2026.
Peruse reviews from past customers who have flown with Delta and United Airlines from Kalispell to St. Louis to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Entertainment
7.8
Crew
8.5
Food
7.2
Overall
7.9
Comfort
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Boarding
8.1
Entertainment
7.8
Crew
8.5
Food
7.2
Overall
7.9
Comfort
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Boarding
8.1
Entertainment
7.8
Crew
8.5
Food
7.2
Overall
7.9
Comfort
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Related info for your journey
Find useful and relevant information for your journey from Kalispell to St. Louis. 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 St. Louis?
Book flights to St. Louis if you plan to visit one of these locationsEdwardsville
O'Fallon
Fenton
Swansea
Fairview Heights
Maryland Heights
Collinsville
Eureka
Wentzville
Glencoe
Chesterfield
Alton
Farmington
Festus
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.
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Complete your trip
Complete your trip to St. Louis by adding a car rental and/or hotel reservation to your travel itinerary.
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Kalispell and St. Louis flights
Browse other Kalispell and St. Louis flight options. Last updated on avril 28, 2026.
Other flights from Kalispell
Browse through other flights departing from Kalispell. Flights are based on user searches made on Cheapflights and were last updated on avril 28, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to St. Louis
Explore flights to St. Louis departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on avril 28, 2026.
Top 2 airlines flying from Kalispell to St. Louis
Discover the top 2 airlines that operate flights from Kalispell to St. Louis. 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 avril 28, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$205 | Average$356 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$318 | Average$544 | FlexibilityNo cancel fee | On-time69% |