$175+ 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 7/1. Fares are subject to change and may not be available on all flights or dates of travel.
MSO — STL
Jul 11 — Jul 181
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
Cheapest
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 June 11, 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 June 11, 2026.
This Delta deal was found by Cheapflights users on 6/7. 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 8/136:27 pm
MSO
- STL
1 stop5h 14m
Delta
Tue 9/15:00 pm
STL
- MSO
1 stop7h 12m
Delta
Deal found 6/7![Delta logo]()
$349
This Alaska Airlines deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/135:41 pm
MSO
- STL
1 stop21h 56m
Alaska Airlines
Tue 9/16:35 am
STL
- MSO
1 stop6h 48m
Alaska Airlines
Deal found 6/8![Alaska Airlines logo]()
$384
This United Airlines deal was found by Cheapflights users on 6/7. 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 9/236:15 am
MSO
- STL
1 stop5h 25m
United Airlines
Sun 9/275:10 am
STL
- MSO
1 stop5h 47m
United Airlines
Deal found 6/7![United Airlines logo]()
$393
This Travelocity deal was found by Cheapflights users on 6/8. 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.
Wed 9/234:16 pm
MSO
- STL
1 stop21h 05m
Alaska Airlines
Sun 9/276:08 pm
STL
- MSO
1 stop20h 17m
Alaska Airlines
Deal found 6/8![Alaska Airlines logo]()
$394
This American Airlines deal was found by Cheapflights users on 6/7. 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 8/131:25 pm
MSO
- STL
1 stop8h 16m
American Airlines
Tue 9/15:42 am
STL
- MSO
1 stop7h 53m
American Airlines
Deal found 6/7![American Airlines logo]()
$404
This Delta deal was found by Cheapflights users on 6/7. 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 12/216:10 pm
MSO
- STL
1 stop5h 26m
Delta
Mon 1/43:45 pm
STL
- MSO
1 stop5h 27m
Delta
Deal found 6/7![Delta logo]()
$429
This United Airlines deal was found by Cheapflights users on 6/7. 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 8/262:40 pm
MSO
- STL
1 stop5h 06m
United Airlines
Sat 8/294:40 pm
STL
- MSO
1 stop5h 51m
United Airlines
Deal found 6/7![United Airlines logo]()
$439
This United Airlines deal was found by Cheapflights users on 6/7. 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 8/132:40 pm
MSO
- STL
1 stop5h 06m
United Airlines
Tue 9/15:10 am
STL
- MSO
2 stops11h 14m
United Airlines
Deal found 6/7![United Airlines logo]()
$451
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 June 11, 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 June 11, 2026.
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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 10/317:00 am
MSO
- STL
1 stop7h 44m
Alaska Airlines
Tue 11/37:00 am
STL
- MSO
1 stop9h 34m
Alaska Airlines
Deal found 6/10![Alaska Airlines logo]()
$349
This Delta deal was found by Cheapflights users on 6/10. 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 8/206:27 pm
MSO
- STL
1 stop5h 14m
Delta
Sun 8/235:34 pm
STL
- MSO
1 stop7h 13m
Delta
Deal found 6/10![Delta logo]()
$349
This United Airlines deal was found by Cheapflights users on 6/7. 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 9/236:15 am
MSO
- STL
1 stop5h 25m
United Airlines
Sun 9/275:10 am
STL
- MSO
1 stop5h 47m
United Airlines
Deal found 6/7![United Airlines logo]()
$393
This American Airlines deal was found by Cheapflights users on 6/7. 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 8/131:25 pm
MSO
- STL
1 stop8h 16m
American Airlines
Tue 9/15:42 am
STL
- MSO
1 stop7h 53m
American Airlines
Deal found 6/7![American Airlines logo]()
$404
This Alaska Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/135:41 pm
MSO
- STL
1 stop21h 56m
Alaska Airlines
Tue 9/13:04 pm
STL
- MSO
1 stop8h 52m
Alaska Airlines
Deal found 6/10![Alaska Airlines logo]()
$390
This United Airlines deal was found by Cheapflights users on 6/10. 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 10/312:27 pm
MSO
- STL
1 stop5h 32m
United Airlines
Tue 11/38:25 am
STL
- MSO
2 stops14h 01m
United Airlines
Deal found 6/10![United Airlines logo]()
$444
This Delta deal was found by Cheapflights users on 6/8. 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 7/316:27 pm
MSO
- STL
1 stop5h 14m
Delta
Tue 8/45:34 pm
STL
- MSO
1 stop7h 13m
Delta
Deal found 6/8![Delta logo]()
$444
This Travelocity deal was found by Cheapflights users on 6/8. 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.
Thu 9/244:16 pm
MSO
- STL
1 stop6h 43m
Alaska Airlines
Sun 9/2710:14 am
STL
- MSO
2 stops13h 42m
Alaska Airlines
Deal found 6/8![Alaska Airlines logo]()
$439
This United Airlines deal was found by Cheapflights users on 6/8. 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 8/262:40 pm
MSO
- STL
1 stop5h 06m
United Airlines
Sat 8/297:25 am
STL
- MSO
2 stops13h 36m
United Airlines
Deal found 6/8![United Airlines logo]()
$444
Last-minute flights from Missoula to St. LouisDiscover last-minute flight deals from Missoula to St. Louis. Data last updated June 11, 2026 and is based on user searches.
Discover last-minute flight deals from Missoula to St. Louis. Data last updated June 11, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 6/9. 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 6/1112:33 pm
MSO
- STL
1 stop5h 40m
United Airlines
Sun 6/146:00 am
STL
- MSO
1 stop6h 32m
United Airlines
Deal found 6/9![United Airlines logo]()
$549
This Alaska Airlines deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/187:03 am
MSO
- STL
1 stop10h 54m
Alaska Airlines
Tue 6/237:56 pm
STL
- MSO
1 stop15h 46m
Alaska Airlines
Deal found 6/8![Alaska Airlines logo]()
$454
This Delta deal was found by Cheapflights users on 6/10. 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 6/186:29 pm
MSO
- STL
1 stop5h 14m
Delta
Tue 6/237:55 pm
STL
- MSO
1 stop5h 33m
Delta
Deal found 6/10![Delta logo]()
$489
This Expedia deal was found by Cheapflights users on 6/10. 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 7/297:59 pm
MSO
- STL
1 stop16h 53m
Alaska Airlines
Sun 8/27:56 pm
STL
- MSO
1 stop15h 46m
Alaska Airlines
Deal found 6/10![Alaska Airlines logo]()
$544
This Delta deal was found by Cheapflights users on 6/7. 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 7/306:27 pm
MSO
- STL
1 stop5h 14m
Delta
Tue 8/47:45 pm
STL
- MSO
1 stop5h 33m
Delta
Deal found 6/7![Delta logo]()
$444
This Expedia deal was found by Cheapflights users on 6/8. 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.
Thu 7/305:41 pm
MSO
- STL
2 stops13h 50m
Alaska Airlines
Sun 8/27:56 pm
STL
- MSO
1 stop15h 46m
Alaska Airlines
Deal found 6/8![Alaska Airlines logo]()
$520
This United Airlines deal was found by Cheapflights users on 6/7. 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 7/307:15 am
MSO
- STL
2 stops12h 28m
United Airlines
Tue 8/46:00 am
STL
- MSO
1 stop6h 32m
United Airlines
Deal found 6/7![United Airlines logo]()
$556
This Delta deal was found by Cheapflights users on 6/7. 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 7/316:27 pm
MSO
- STL
1 stop5h 14m
Delta
Tue 8/45:34 pm
STL
- MSO
1 stop7h 13m
Delta
Deal found 6/7![Delta logo]()
$474
This United Airlines deal was found by Cheapflights users on 6/7. 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 7/315:20 pm
MSO
- STL
1 stop5h 37m
United Airlines
Tue 8/41:38 pm
STL
- MSO
2 stops11h 18m
United Airlines
Deal found 6/7![United Airlines logo]()
$500
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 June 11, 2026.
Search for one-way flight options from Missoula to St. Louis. Find affordable one-way fares based on user searches. Data last updated June 11, 2026.
This Delta deal was found by Cheapflights users on 6/8. 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 7/16:29 pm
MSO
- STL
1 stop5h 14m
Delta
Deal found 6/8![Delta logo]()
$175
This American Airlines deal was found by Cheapflights users on 6/8. 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 6/242:15 pm
MSO
- STL
1 stop8h 44m
American Airlines
Deal found 6/8![American Airlines logo]()
$200
This American Airlines deal was found by Cheapflights users on 6/8. 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 6/182:15 pm
MSO
- STL
1 stop8h 44m
American Airlines
Deal found 6/8![American Airlines logo]()
$245
This Alaska Airlines deal was found by Cheapflights users on 6/8. 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 7/47:03 am
MSO
- STL
1 stop10h 54m
Alaska Airlines
Deal found 6/8![Alaska Airlines logo]()
$270
This Expedia deal was found by Cheapflights users on 6/8. 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 7/17:03 am
MSO
- STL
2 stops13h 34m
Alaska Airlines
Deal found 6/8![Alaska Airlines logo]()
$300
This Expedia deal was found by Cheapflights users on 6/8. 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 6/245:41 pm
MSO
- STL
2 stops13h 50m
Alaska Airlines
Deal found 6/8![Alaska Airlines logo]()
$386
This United Airlines deal was found by Cheapflights users on 6/8. 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 6/187:15 am
MSO
- STL
2 stops15h 14m
United Airlines
Deal found 6/8![United Airlines logo]()
$456
This Kiwi.com deal was found by Cheapflights users on 6/8. 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 6/183:48 pm
MSO
- STL
3 stops55h 01m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$459
This Kiwi.com deal was found by Cheapflights users on 6/8. 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 7/17:03 am
MSO
- STL
3 stops31h 13m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$546
This Kiwi.com deal was found by Cheapflights users on 6/8. 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 6/245:41 pm
MSO
- STL
3 stops20h 35m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$722
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 June 11, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $349 (Delta) |
One-way from | $175 (Delta) |
Popular in | September |
Cheapest in | April |
Average price | $523 |
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 June 11, 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
Sat 10/31
7:00 am-3:44 pm
1 stop7h 44m
Lambert-St Louis
Tue 11/3
7:00 am-3:34 pm
1 stop9h 34m
$349
MissoulaSt. Louis
MSO - STL
MSOSTL
Missoula Johnson-Bell Field
Thu 8/20
6:27 pm-12:41 am
1 stop5h 14m
Lambert-St Louis
Sun 8/23
5:34 pm-11:47 pm
1 stop7h 13m
$349
MissoulaSt. Louis
MSO - STL
MSOSTL
Missoula Johnson-Bell Field
Thu 8/13
5:41 pm-4:37 pm
1 stop21h 56m
Lambert-St Louis
Tue 9/1
3:04 pm-10:56 pm
1 stop8h 52m
$390
Quickest round-trip
MissoulaSt. Louis
MSO - STL
MSOSTL
Missoula Johnson-Bell Field
Wed 9/23
6:15 am-12:40 pm
1 stop5h 25m
Lambert-St Louis
Sun 9/27
5:10 am-9:57 am
1 stop5h 47m
$393
MissoulaSt. Louis
MSO - STL
MSOSTL
Missoula Johnson-Bell Field
Thu 8/13
1:25 pm-10:41 pm
1 stop8h 16m
Lambert-St Louis
Tue 9/1
5:42 am-12:35 pm
1 stop7h 53m
$404
MissoulaSt. Louis
MSO - STL
MSOSTL
Missoula Johnson-Bell Field
Thu 9/24
4:16 pm-11:59 pm
1 stop6h 43m
Lambert-St Louis
Sun 9/27
10:14 am-10:56 pm
2 stops13h 42m
$439
MissoulaSt. Louis
MSO - STL
MSOSTL
Missoula Johnson-Bell Field
Sat 10/31
2:27 pm-8:59 pm
1 stop5h 32m
Lambert-St Louis
Tue 11/3
8:25 am-9:26 pm
2 stops14h 01m
$444
MissoulaSt. Louis
MSO - STL
MSOSTL
Missoula Johnson-Bell Field
Fri 7/31
6:27 pm-12:41 am
1 stop5h 14m
Lambert-St Louis
Tue 8/4
5:34 pm-11:47 pm
1 stop7h 13m
$444
MissoulaSt. Louis
MSO - STL
MSOSTL
Missoula Johnson-Bell Field
Wed 8/26
2:40 pm-8:46 pm
1 stop5h 06m
Lambert-St Louis
Sat 8/29
7:25 am-8:01 pm
2 stops13h 36m
$444
Cheapest one-way
Quickest one-way
MissoulaSt. Louis
MSO - STL
MSOSTL
Missoula Johnson-Bell Field
Wed 7/1
6:29 pm-12:43 am
1 stop5h 14m
$175
Showing 1-10 of 15 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 June.
| 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 June 11, 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.
Crew
8.5
Food
7.2
Overall
7.9
Entertainment
7.8
Boarding
8.1
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Food
7.2
Overall
7.9
Entertainment
7.8
Boarding
8.1
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Food
7.2
Overall
7.9
Entertainment
7.8
Boarding
8.1
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 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
Alton
Farmington
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St. Louis flight routes
Alternative routes for Missoula to St. Louis
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to St. Louis by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Missoula to St. Louis by cabin class
Find flights from Missoula to St. Louis, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Missoula and St. Louis flights
Browse other Missoula and St. Louis flight options. Last updated on June 11, 2026.
Other flights from Missoula
Browse through other flights departing from Missoula. Flights are based on user searches made on Cheapflights and were last updated on June 11, 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 June 11, 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 June 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$164 | Average$388 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$274 | Average$499 | FlexibilityNo cancel fee | On-time69% |