$221+ Cheap flights from Missoula to St. Louis (MSO - 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 9/23. Fares are subject to change and may not be available on all flights or dates of travel.
MSO — STL
Aug 27 — Sep 31
Round-trip
1 adult, Economy
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Find cheap flights from Missoula 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 Missoula to St. Louis
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Best
Last-minute
One-way
Cheapest flights from Missoula to St. LouisExplore the most affordable flight options available from Missoula 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 Missoula to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 28, 2026.
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.
Sat 10/171:45 pm
MSO
- STL
1 stop9h 13m
American Airlines
Sun 11/16:00 am
STL
- MSO
1 stop7h 40m
American Airlines
Deal found 7/23![American Airlines logo]()
$437
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.
Fri 11/131:10 pm
MSO
- STL
1 stop20h 48m
American Airlines
Sun 11/155:00 am
STL
- MSO
1 stop8h 40m
American Airlines
Deal found 7/25![American Airlines logo]()
$447
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 10/156:24 pm
MSO
- STL
1 stop5h 10m
Delta
Mon 10/197:00 pm
STL
- MSO
1 stop6h 21m
Delta
Deal found 7/23![Delta logo]()
$451
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/242:06 pm
MSO
- STL
1 stop8h 53m
Alaska Airlines
Wed 10/287:02 am
STL
- MSO
1 stop8h 48m
Alaska Airlines
Deal found 7/26![Alaska Airlines logo]()
$455
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 10/201:05 pm
MSO
- STL
2 stops9h 53m
American Airlines
Fri 10/237:29 am
STL
- MSO
1 stop6h 06m
American Airlines
Deal found 7/26![American Airlines logo]()
$460
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/236:15 am
MSO
- STL
1 stop5h 25m
United Airlines
Sun 8/304:40 pm
STL
- MSO
1 stop5h 51m
United Airlines
Deal found 7/23![United Airlines logo]()
$469
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.
Sat 9/126:15 am
MSO
- STL
1 stop5h 25m
United Airlines
Sun 9/134:40 pm
STL
- MSO
1 stop5h 54m
United Airlines
Deal found 7/27![United Airlines logo]()
$482
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.
Sat 9/57:13 am
MSO
- STL
2 stops13h 50m
Delta
Mon 9/75:34 pm
STL
- MSO
1 stop7h 13m
Delta
Deal found 7/27![Delta logo]()
$483
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.
Thu 8/610:24 am
MSO
- STL
2 stops31h 59m
Multiple Airlines
Sat 8/296:45 pm
STL
- MSO
1 stop27h 17m
Multiple Airlines
Deal found 7/24![Multiple Airlines logo]()
$486
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/237:00 am
MSO
- STL
2 stops12h 52m
Alaska Airlines
Sun 9/276:29 am
STL
- MSO
1 stop9h 48m
Alaska Airlines
Deal found 7/27![Alaska Airlines logo]()
$510
Best flights from Missoula to St. LouisDiscover carefully curated flight deals from Missoula 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 Missoula 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 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 10/156:24 pm
MSO
- STL
1 stop5h 10m
Delta
Mon 10/197:00 pm
STL
- MSO
1 stop6h 21m
Delta
Deal found 7/23![Delta logo]()
$451
This Alaska Airlines deal was found by Cheapflights users on 7/22. 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 10/242:06 pm
MSO
- STL
1 stop8h 53m
Alaska Airlines
Wed 10/287:02 am
STL
- MSO
1 stop8h 48m
Alaska Airlines
Deal found 7/22![Alaska Airlines logo]()
$455
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.
Sat 9/126:15 am
MSO
- STL
1 stop5h 25m
United Airlines
Sun 9/134:40 pm
STL
- MSO
1 stop5h 54m
United Airlines
Deal found 7/27![United Airlines logo]()
$482
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.
Fri 11/136:50 am
MSO
- STL
2 stops11h 32m
American Airlines
Sun 11/157:24 am
STL
- MSO
1 stop6h 16m
American Airlines
Deal found 7/25![American Airlines logo]()
$519
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.
Tue 10/206:25 pm
MSO
- STL
1 stop5h 19m
Delta
Fri 10/237:45 am
STL
- MSO
1 stop5h 49m
Delta
Deal found 7/26![Delta logo]()
$455
This Travelocity 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/207:03 am
MSO
- STL
2 stops15h 43m
Alaska Airlines
Fri 10/237:02 am
STL
- MSO
1 stop8h 48m
Alaska Airlines
Deal found 7/23![Alaska Airlines logo]()
$510
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.
Fri 9/47:15 am
MSO
- STL
2 stops12h 31m
United Airlines
Sun 9/68:30 am
STL
- MSO
2 stops8h 50m
United Airlines
Deal found 7/27![United Airlines logo]()
$569
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 8/76:27 pm
MSO
- STL
1 stop5h 14m
Delta
Sun 8/97:45 pm
STL
- MSO
1 stop5h 33m
Delta
Deal found 7/25![Delta logo]()
$569
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.
Sat 10/2410:38 am
MSO
- STL
2 stops9h 43m
United Airlines
Wed 10/285:00 am
STL
- MSO
2 stops9h 31m
United Airlines
Deal found 7/26![United Airlines logo]()
$572
Last-minute flights from Missoula to St. LouisDiscover last-minute flight deals from Missoula to St. Louis. Data last updated July 28, 2026 and is based on user searches.
Discover last-minute flight deals from Missoula to St. Louis. Data last updated July 28, 2026 and is based on user searches.
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/33:36 pm
MSO
- STL
1 stop6h 50m
Delta
Wed 8/57:45 pm
STL
- MSO
1 stop5h 33m
Delta
Deal found 7/24![Delta logo]()
$649
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.
Mon 8/35:20 pm
MSO
- STL
1 stop5h 37m
United Airlines
Wed 8/511:25 am
STL
- MSO
2 stops11h 14m
United Airlines
Deal found 7/24![United Airlines logo]()
$716
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.
Thu 8/610:24 am
MSO
- STL
2 stops31h 59m
Multiple Airlines
Sat 8/296:45 pm
STL
- MSO
1 stop27h 17m
Multiple Airlines
Deal found 7/24![Multiple Airlines logo]()
$486
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.
Thu 8/65:20 pm
MSO
- STL
1 stop5h 37m
United Airlines
Sat 8/299:00 am
STL
- MSO
1 stop8h 20m
United Airlines
Deal found 7/24![United Airlines logo]()
$668
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 8/76:27 pm
MSO
- STL
1 stop5h 14m
Delta
Sun 8/97:45 pm
STL
- MSO
1 stop5h 33m
Delta
Deal found 7/25![Delta logo]()
$569
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.
Fri 8/76:27 pm
MSO
- STL
1 stop5h 14m
Delta
Tue 8/117:45 pm
STL
- MSO
1 stop5h 33m
Delta
Deal found 7/23![Delta logo]()
$610
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/77:15 am
MSO
- STL
2 stops15h 14m
United Airlines
Tue 8/115:10 am
STL
- MSO
1 stop5h 47m
United Airlines
Deal found 7/23![United Airlines logo]()
$625
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.
Fri 8/77:15 am
MSO
- STL
2 stops13h 11m
United Airlines
Sun 8/94:48 pm
STL
- MSO
1 stop5h 52m
United Airlines
Deal found 7/26![United Airlines logo]()
$699
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 8/113:36 pm
MSO
- STL
1 stop6h 50m
Delta
Sat 8/155:34 pm
STL
- MSO
1 stop7h 13m
Delta
Deal found 7/27![Delta logo]()
$639
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 8/115:41 pm
MSO
- STL
1 stop21h 56m
Alaska Airlines
Sat 8/155:37 pm
STL
- MSO
2 stops23h 32m
Alaska Airlines
Deal found 7/27![Alaska Airlines logo]()
$692
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/236:15 am
MSO
- STL
1 stop5h 25m
United Airlines
Sun 8/304:40 pm
STL
- MSO
1 stop5h 51m
United Airlines
Deal found 7/23![United Airlines logo]()
$469
One-way flights from Missoula to St. LouisSearch for one-way flight options from Missoula 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 Missoula to St. Louis. Find affordable one-way fares based on user searches. Data last updated July 28, 2026.
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.
Wed 9/236:17 pm
MSO
- STL
1 stop5h 27m
Delta
Deal found 7/27![Delta logo]()
$221
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 9/237:00 am
MSO
- STL
2 stops13h 38m
United Airlines
Deal found 7/27![United Airlines logo]()
$271
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.
Sun 8/210:24 am
MSO
- STL
1 stop30h 51m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$517
Find flight deals from Missoula to St. Louis
Discover tips and strategies to find the most affordable flight options for your journey from Missoula (MSO) 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 | $437 (American Airlines) |
One-way from | $221 (Delta) |
Popular in | September |
Cheapest in | April |
Average price | $703 |
Cheapflights Fare Finder
Customize your flight search to find flights from Missoula 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 Missoula to St. Louis that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
MissoulaSt. Louis
MSO - STL
MSOSTL
Missoula Johnson-Bell Field
Thu 10/15
6:24 pm-12:34 am
1 stop5h 10m
Lambert-St Louis
Mon 10/19
7:00 pm-12:21 am
1 stop6h 21m
$451
MissoulaSt. Louis
MSO - STL
MSOSTL
Missoula Johnson-Bell Field
Sat 10/24
2:06 pm-11:59 pm
1 stop8h 53m
Lambert-St Louis
Wed 10/28
7:02 am-2:50 pm
1 stop8h 48m
$455
MissoulaSt. Louis
MSO - STL
MSOSTL
Missoula Johnson-Bell Field
Tue 10/20
6:25 pm-12:44 am
1 stop5h 19m
Lambert-St Louis
Fri 10/23
7:45 am-12:34 pm
1 stop5h 49m
$455
MissoulaSt. Louis
MSO - STL
MSOSTL
Missoula Johnson-Bell Field
Sat 9/12
6:15 am-12:40 pm
1 stop5h 25m
Lambert-St Louis
Sun 9/13
4:40 pm-9:34 pm
1 stop5h 54m
$482
MissoulaSt. Louis
MSO - STL
MSOSTL
Missoula Johnson-Bell Field
Tue 10/20
7:03 am-11:46 pm
2 stops15h 43m
Lambert-St Louis
Fri 10/23
7:02 am-2:50 pm
1 stop8h 48m
$510
MissoulaSt. Louis
MSO - STL
MSOSTL
Missoula Johnson-Bell Field
Fri 11/13
6:50 am-7:22 pm
2 stops11h 32m
Lambert-St Louis
Sun 11/15
7:24 am-12:40 pm
1 stop6h 16m
$519
MissoulaSt. Louis
MSO - STL
MSOSTL
Missoula Johnson-Bell Field
Fri 9/4
7:15 am-8:46 pm
2 stops12h 31m
Lambert-St Louis
Sun 9/6
8:30 am-4:20 pm
2 stops8h 50m
$569
Quickest round-trip
MissoulaSt. Louis
MSO - STL
MSOSTL
Missoula Johnson-Bell Field
Fri 8/7
6:27 pm-12:41 am
1 stop5h 14m
Lambert-St Louis
Sun 8/9
7:45 pm-12:18 am
1 stop5h 33m
$569
MissoulaSt. Louis
MSO - STL
MSOSTL
Missoula Johnson-Bell Field
Sat 10/24
10:38 am-9:21 pm
2 stops9h 43m
Lambert-St Louis
Wed 10/28
5:00 am-1:31 pm
2 stops9h 31m
$572
Cheapest one-way
Quickest one-way
MissoulaSt. Louis
MSO - STL
MSOSTL
Missoula Johnson-Bell Field
Wed 9/23
6:17 pm-12:44 am
1 stop5h 27m
$221
Showing 1-10 of 12 resultsSorted by cheapest first
Compare providers for flights from Missoula 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 Missoula 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 Missoula-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Missoula-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Missoula-St. Louis flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Missoula-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 Missoula-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 Missoula to St. Louis
Have a flexible travel schedule? Discover the best time to fly to St. Louis from Missoula with our price prediction graph.
MSO-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 Missoula 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 July 28, 2026.
See what other customers who have flown with Delta and United Airlines from Missoula to St. Louis have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
7.8
Entertainment
7.8
Boarding
8.1
Food
7.2
Comfort
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Overall
7.8
Entertainment
7.8
Boarding
8.1
Food
7.2
Comfort
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Overall
7.8
Entertainment
7.8
Boarding
8.1
Food
7.2
Comfort
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Related info for your journey
Find useful and relevant information for your journey from Missoula 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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Missoula and St. Louis flights
Browse other Missoula and St. Louis flight options. Last updated on July 28, 2026.
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Browse through other flights departing from Missoula. 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 Missoula to St. Louis
Discover the top 2 airlines that operate flights from Missoula 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$164 | Average$378 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$274 | Average$499 | FlexibilityNo cancel fee | On-time69% |