$160+ 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 8/25. Fares are subject to change and may not be available on all flights or dates of travel.
FCA — STL
Aug 27 — Sep 31
Round-trip
1 adult, Economy
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Find cheap flights from Kalispell to St. Louis 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 Kalispell to St. Louis
Cheapest
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 July 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 July 28, 2026.
This Delta deal was found by Cheapflights users on 7/26. 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.
Fri 8/146:09 pm
FCA
- STL
1 stop5h 32m
Delta
Sat 8/153:29 pm
STL
- FCA
1 stop5h 46m
Delta
Deal found 7/26![Delta logo]()
$319
This American Airlines deal was found by Cheapflights users on 7/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/254:50 pm
FCA
- STL
1 stop6h 24m
American Airlines
Tue 9/16:00 am
STL
- FCA
2 stops9h 34m
American Airlines
Deal found 7/26![American Airlines logo]()
$324
This American Airlines deal was found by Cheapflights users on 7/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/93:26 pm
FCA
- STL
1 stop7h 17m
American Airlines
Wed 9/167:21 am
STL
- FCA
1 stop6h 23m
American Airlines
Deal found 7/26![American Airlines logo]()
$349
This American Airlines deal was found by Cheapflights users on 7/28. 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.
Thu 9/103:26 pm
FCA
- STL
1 stop7h 17m
American Airlines
Wed 9/167:21 am
STL
- FCA
1 stop6h 23m
American Airlines
Deal found 7/28![American Airlines logo]()
$350
This American Airlines deal was found by Cheapflights users on 7/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/93:26 pm
FCA
- STL
1 stop7h 17m
American Airlines
Mon 9/145:00 am
STL
- FCA
2 stops10h 33m
American Airlines
Deal found 7/26![American Airlines logo]()
$354
This American Airlines deal was found by Cheapflights users on 7/23. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/124:50 pm
FCA
- STL
1 stop6h 24m
American Airlines
Sat 8/158:06 pm
STL
- FCA
1 stop21h 04m
American Airlines
Deal found 7/23![American Airlines logo]()
$362
This American Airlines deal was found by Cheapflights users on 7/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/183:45 pm
FCA
- STL
1 stop6h 57m
American Airlines
Sat 8/228:06 pm
STL
- FCA
1 stop21h 04m
American Airlines
Deal found 7/26![American Airlines logo]()
$402
This United Airlines deal was found by Cheapflights users on 7/26. 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.
Wed 8/196:20 am
FCA
- STL
1 stop5h 20m
United Airlines
Tue 8/254:40 pm
STL
- FCA
1 stop5h 41m
United Airlines
Deal found 7/26![United Airlines logo]()
$409
This United Airlines deal was found by Cheapflights users on 7/27. 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.
Thu 8/205:04 pm
FCA
- STL
1 stop5h 27m
United Airlines
Sun 8/235:10 am
STL
- FCA
2 stops11h 11m
United Airlines
Deal found 7/27![United Airlines logo]()
$414
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 July 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 July 28, 2026.
This United Airlines deal was found by Cheapflights users on 7/27. 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.
Thu 8/205:04 pm
FCA
- STL
1 stop5h 27m
United Airlines
Sun 8/238:42 am
STL
- FCA
1 stop7h 39m
United Airlines
Deal found 7/27![United Airlines logo]()
$319
This Alaska Airlines deal was found by Cheapflights users on 7/25. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/122:10 pm
FCA
- STL
1 stop8h 49m
Alaska Airlines
Tue 12/153:24 pm
STL
- FCA
1 stop9h 35m
Alaska Airlines
Deal found 7/25![Alaska Airlines logo]()
$349
This American Airlines deal was found by Cheapflights users on 7/28. 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.
Thu 9/103:26 pm
FCA
- STL
1 stop7h 17m
American Airlines
Wed 9/167:21 am
STL
- FCA
1 stop6h 23m
American Airlines
Deal found 7/28![American Airlines logo]()
$350
This United Airlines deal was found by Cheapflights users on 7/27. 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.
Wed 8/266:20 am
FCA
- STL
1 stop5h 20m
United Airlines
Sat 8/294:40 pm
STL
- FCA
1 stop5h 41m
United Airlines
Deal found 7/27![United Airlines logo]()
$409
This United Airlines deal was found by Cheapflights users on 7/26. 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.
Wed 8/197:15 am
FCA
- STL
1 stop10h 24m
United Airlines
Sat 8/228:00 am
STL
- FCA
2 stops14h 21m
United Airlines
Deal found 7/26![United Airlines logo]()
$414
Last-minute flights from Kalispell to St. LouisDiscover last-minute flight deals from Kalispell to St. Louis. Data last updated July 28, 2026 and is based on user searches.
Discover last-minute flight deals from Kalispell to St. Louis. Data last updated July 28, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 7/23. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/124:50 pm
FCA
- STL
1 stop6h 24m
American Airlines
Sat 8/158:06 pm
STL
- FCA
1 stop21h 04m
American Airlines
Deal found 7/23![American Airlines logo]()
$362
This Delta deal was found by Cheapflights users on 7/26. 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.
Thu 8/136:09 pm
FCA
- STL
1 stop5h 32m
Delta
Sun 8/165:34 pm
STL
- FCA
1 stop7h 22m
Delta
Deal found 7/26![Delta logo]()
$429
This Delta deal was found by Cheapflights users on 7/23. 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.
Thu 8/136:09 pm
FCA
- STL
1 stop5h 32m
Delta
Mon 8/175:34 pm
STL
- FCA
1 stop7h 22m
Delta
Deal found 7/23![Delta logo]()
$439
This Delta deal was found by Cheapflights users on 7/26. 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.
Fri 8/146:09 pm
FCA
- STL
1 stop5h 32m
Delta
Sat 8/153:29 pm
STL
- FCA
1 stop5h 46m
Delta
Deal found 7/26![Delta logo]()
$319
This American Airlines deal was found by Cheapflights users on 7/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/183:45 pm
FCA
- STL
1 stop6h 57m
American Airlines
Sat 8/228:06 pm
STL
- FCA
1 stop21h 04m
American Airlines
Deal found 7/26![American Airlines logo]()
$402
This United Airlines deal was found by Cheapflights users on 7/26. 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.
Wed 8/196:20 am
FCA
- STL
1 stop5h 20m
United Airlines
Tue 8/254:40 pm
STL
- FCA
1 stop5h 41m
United Airlines
Deal found 7/26![United Airlines logo]()
$409
This Delta deal was found by Cheapflights users on 7/26. 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.
Wed 8/192:40 pm
FCA
- STL
2 stops16h 28m
Delta
Fri 8/215:34 pm
STL
- FCA
1 stop7h 22m
Delta
Deal found 7/26![Delta logo]()
$437
This Delta deal was found by Cheapflights users on 7/26. 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.
Wed 8/192:40 pm
FCA
- STL
2 stops16h 28m
Delta
Tue 8/2511:00 am
STL
- FCA
2 stops12h 53m
Delta
Deal found 7/26![Delta logo]()
$442
This United Airlines deal was found by Cheapflights users on 7/27. 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.
Thu 8/205:04 pm
FCA
- STL
1 stop5h 27m
United Airlines
Sun 8/235:10 am
STL
- FCA
2 stops11h 11m
United Airlines
Deal found 7/27![United Airlines logo]()
$414
This American Airlines deal was found by Cheapflights users on 7/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/254:50 pm
FCA
- STL
1 stop6h 24m
American Airlines
Tue 9/16:00 am
STL
- FCA
2 stops9h 34m
American Airlines
Deal found 7/26![American Airlines logo]()
$324
This United Airlines deal was found by Cheapflights users on 7/27. 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.
Wed 8/267:15 am
FCA
- STL
2 stops12h 31m
United Airlines
Sat 8/298:00 am
STL
- FCA
2 stops14h 21m
United Airlines
Deal found 7/27![United Airlines logo]()
$419
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 July 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 July 28, 2026.
This American Airlines deal was found by Cheapflights users on 7/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/254:50 pm
FCA
- STL
1 stop6h 24m
American Airlines
Deal found 7/25![American Airlines logo]()
$160
This Delta deal was found by Cheapflights users on 7/27. 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 10/136:13 pm
FCA
- STL
1 stop5h 31m
Delta
Deal found 7/27![Delta logo]()
$190
This Alaska Airlines deal was found by Cheapflights users on 7/27. 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.
Tue 10/137:45 pm
FCA
- STL
2 stops12h 35m
Alaska Airlines
Deal found 7/27![Alaska Airlines logo]()
$221
This United Airlines deal was found by Cheapflights users on 7/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/2510:45 am
FCA
- STL
2 stops10h 15m
United Airlines
Deal found 7/25![United Airlines logo]()
$370
This American Airlines deal was found by Cheapflights users on 7/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/133:26 pm
FCA
- STL
1 stop7h 17m
American Airlines
Deal found 7/25![American Airlines logo]()
$439
This Kiwi.com deal was found by Cheapflights users on 7/24. 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.
Fri 8/79:09 pm
FCA
- STL
2 stops20h 06m
Multiple Airlines
Deal found 7/24![Multiple Airlines logo]()
$447
This United Airlines deal was found by Cheapflights users on 7/24. 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.
Fri 8/75:28 pm
FCA
- STL
1 stop5h 29m
United Airlines
Deal found 7/24![United Airlines logo]()
$465
This Kiwi.com deal was found by Cheapflights users on 7/27. 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.
Tue 10/137:45 pm
FCA
- STL
3 stops36h 55m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$500
This Alaska Airlines deal was found by Cheapflights users on 7/25. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/136:15 am
FCA
- STL
2 stops9h 55m
Alaska Airlines
Deal found 7/25![Alaska Airlines logo]()
$522
This Delta deal was found by Cheapflights users on 7/25. 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.
Fri 10/26:35 am
FCA
- STL
1 stop7h 37m
Delta
Deal found 7/25![Delta logo]()
$570
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 July 28, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $319 (Delta) |
One-way from | $160 (American Airlines) |
Popular in | January |
Cheapest in | May |
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 July 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
Thu 8/20
5:04 pm-11:31 pm
1 stop5h 27m
Lambert-St Louis
Sun 8/23
8:42 am-3:21 pm
1 stop7h 39m
$319
KalispellSt. Louis
FCA - STL
FCASTL
Kalispell Glacier Park
Sat 12/12
2:10 pm-11:59 pm
1 stop8h 49m
Lambert-St Louis
Tue 12/15
3:24 pm-11:59 pm
1 stop9h 35m
$349
KalispellSt. Louis
FCA - STL
FCASTL
Kalispell Glacier Park
Thu 9/10
3:26 pm-11:43 pm
1 stop7h 17m
Lambert-St Louis
Wed 9/16
7:21 am-12:44 pm
1 stop6h 23m
$350
Quickest round-trip
KalispellSt. Louis
FCA - STL
FCASTL
Kalispell Glacier Park
Wed 8/26
6:20 am-12:40 pm
1 stop5h 20m
Lambert-St Louis
Sat 8/29
4:40 pm-9:21 pm
1 stop5h 41m
$409
KalispellSt. Louis
FCA - STL
FCASTL
Kalispell Glacier Park
Wed 8/19
7:15 am-6:39 pm
1 stop10h 24m
Lambert-St Louis
Sat 8/22
8:00 am-9:21 pm
2 stops14h 21m
$414
Cheapest one-way
KalispellSt. Louis
FCA - STL
FCASTL
Kalispell Glacier Park
Tue 10/13
6:13 pm-12:44 am
1 stop5h 31m
$190
KalispellSt. Louis
FCA - STL
FCASTL
Kalispell Glacier Park
Tue 10/13
7:45 pm-9:20 am
2 stops12h 35m
$221
KalispellSt. Louis
FCA - STL
FCASTL
Kalispell Glacier Park
Sun 9/13
3:26 pm-11:43 pm
1 stop7h 17m
$439
KalispellSt. Louis
FCA - STL
FCASTL
Kalispell Glacier Park
Fri 8/7
9:09 pm-6:15 pm
2 stops20h 06m
$447
Quickest one-way
KalispellSt. Louis
FCA - STL
FCASTL
Kalispell Glacier Park
Sat 8/22
2:31 pm-8:46 pm
1 stop5h 15m
$465
Showing 1-10 of 15 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 July.
| 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.
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 July 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.
Crew
8.5
Overall
7.8
Food
7.2
Boarding
8.1
Entertainment
7.8
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Overall
7.8
Food
7.2
Boarding
8.1
Entertainment
7.8
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Overall
7.8
Food
7.2
Boarding
8.1
Entertainment
7.8
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
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
Eureka
Maryland Heights
Collinsville
Wentzville
Glencoe
Chesterfield
Farmington
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Kalispell and St. Louis flights
Browse other Kalispell and St. Louis flight options. Last updated on July 28, 2026.
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Browse through other flights departing from Kalispell. Flights are based on user searches made on Cheapflights and were last updated on July 28, 2026.
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Explore flights to St. Louis departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on July 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 July 28, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$296 | Average$357 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$308 | Average$530 | FlexibilityNo cancel fee | On-time69% |