$174+ Cheap flights from St. Louis to Missoula (STL - MSO)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/30. Fares are subject to change and may not be available on all flights or dates of travel.
STL — MSO
Oct 21 — Oct 281
Round-trip
1 adult, Economy
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Find cheap flights from St. Louis to Missoula with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from St. Louis to Missoula
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Cheapest flights from St. Louis to MissoulaExplore the most affordable flight options available from St. Louis to Missoula. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 21, 2026.
Explore the most affordable flight options available from St. Louis to Missoula. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 21, 2026.
This American Airlines deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/48:15 pm -
1 stop17h 21m
Sun 11/81:06 pm -
1 stop20h 47m
Deal found 9/18![American Airlines logo]()
$465
This Delta deal was found by Cheapflights users on 9/17. 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 10/207:00 pm -
1 stop6h 31m
Mon 10/266:23 pm -
1 stop5h 21m
Deal found 9/17![Delta logo]()
$481
This Delta deal was found by Cheapflights users on 9/17. 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 10/227:00 pm -
1 stop6h 31m
Sun 10/255:30 am -
1 stop7h 02m
Deal found 9/17![Delta logo]()
$495
This Delta deal was found by Cheapflights users on 9/21. 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 11/43:35 pm -
2 stops8h 16m
Sun 11/86:23 pm -
1 stop5h 21m
Deal found 9/21![Delta logo]()
$500
This Delta deal was found by Cheapflights users on 9/20. 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 11/213:30 pm -
1 stop5h 27m
Fri 11/271:19 pm -
1 stop6h 59m
Deal found 9/20![Delta logo]()
$509
This United Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/248:48 am -
1 stop8h 34m
Fri 1/12:39 pm -
1 stop5h 29m
Deal found 9/16![United Airlines logo]()
$523
This Alaska Airlines deal was found by Cheapflights users on 9/17. 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 11/213:20 pm -
1 stop8h 40m
Fri 11/277:00 am -
1 stop15h 59m
Deal found 9/17![Alaska Airlines logo]()
$534
This Delta deal was found by Cheapflights users on 9/20. 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.
Sun 10/187:45 am -
1 stop5h 49m
Sun 10/256:23 pm -
1 stop5h 21m
Deal found 9/20![Delta logo]()
$545
This United Airlines deal was found by Cheapflights users on 9/17. 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 10/27:08 am -
1 stop9h 11m
Tue 10/62:38 pm -
1 stop8h 06m
Deal found 9/17![United Airlines logo]()
$570
Best flights from St. Louis to MissoulaDiscover carefully curated flight deals from St. Louis to Missoula that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 21, 2026.
Discover carefully curated flight deals from St. Louis to Missoula that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 21, 2026.
This American Airlines deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/48:15 pm -
1 stop17h 21m
Sun 11/81:06 pm -
1 stop20h 47m
Deal found 9/18![American Airlines logo]()
$465
This Delta deal was found by Cheapflights users on 9/20. 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 10/197:00 pm -
1 stop6h 31m
Mon 10/266:23 pm -
1 stop5h 21m
Deal found 9/20![Delta logo]()
$481
This United Airlines deal was found by Cheapflights users on 9/17. 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 10/85:10 am -
1 stop5h 47m
Sun 10/1112:28 pm -
1 stop7h 53m
Deal found 9/17![United Airlines logo]()
$600
This Delta deal was found by Cheapflights users on 9/17. 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 10/207:00 pm -
1 stop6h 31m
Mon 10/266:23 pm -
1 stop5h 21m
Deal found 9/17![Delta logo]()
$481
This Delta deal was found by Cheapflights users on 9/17. 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 10/227:00 pm -
1 stop6h 31m
Sun 10/255:30 am -
1 stop7h 02m
Deal found 9/17![Delta logo]()
$495
This Delta deal was found by Cheapflights users on 9/21. 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 11/43:35 pm -
2 stops8h 16m
Sun 11/86:23 pm -
1 stop5h 21m
Deal found 9/21![Delta logo]()
$500
This United Airlines deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/41:08 pm -
2 stops9h 39m
Sun 11/86:15 am -
2 stops8h 28m
Deal found 9/18![United Airlines logo]()
$615
This Delta deal was found by Cheapflights users on 9/20. 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.
Sun 10/187:45 am -
1 stop5h 49m
Sun 10/256:23 pm -
1 stop5h 21m
Deal found 9/20![Delta logo]()
$545
This United Airlines deal was found by Cheapflights users on 9/20. 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 10/207:08 am -
1 stop9h 11m
Mon 10/262:37 pm -
3 stops30h 03m
Deal found 9/20![United Airlines logo]()
$663
Last-minute flights from St. Louis to MissoulaDiscover last-minute flight deals from St. Louis to Missoula. Data last updated September 21, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Missoula. Data last updated September 21, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/17. 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 10/16:00 am -
1 stop6h 32m
Mon 10/52:38 pm -
1 stop4h 58m
Deal found 9/17![United Airlines logo]()
$631
This United Airlines deal was found by Cheapflights users on 9/17. 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 10/27:08 am -
1 stop9h 11m
Tue 10/62:38 pm -
1 stop8h 06m
Deal found 9/17![United Airlines logo]()
$570
This United Airlines deal was found by Cheapflights users on 9/20. 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 10/51:29 pm -
2 stops9h 03m
Fri 10/95:19 pm -
1 stop5h 25m
Deal found 9/20![United Airlines logo]()
$575
This United Airlines deal was found by Cheapflights users on 9/17. 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 10/85:10 am -
1 stop5h 47m
Sun 10/1112:28 pm -
1 stop7h 53m
Deal found 9/17![United Airlines logo]()
$600
This Delta deal was found by Cheapflights users on 9/20. 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.
Sun 10/187:45 am -
1 stop5h 49m
Sun 10/256:23 pm -
1 stop5h 21m
Deal found 9/20![Delta logo]()
$545
This Delta deal was found by Cheapflights users on 9/17. 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 10/207:00 pm -
1 stop6h 31m
Mon 10/266:23 pm -
1 stop5h 21m
Deal found 9/17![Delta logo]()
$481
This United Airlines deal was found by Cheapflights users on 9/20. 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 10/205:10 am -
2 stops11h 09m
Mon 10/262:37 pm -
1 stop5h 22m
Deal found 9/20![United Airlines logo]()
$630
This Alaska Airlines deal was found by Cheapflights users on 9/17. 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 10/2010:12 am -
2 stops29h 38m
Mon 10/263:49 pm -
2 stops16h 29m
Deal found 9/17![Alaska Airlines logo]()
$660
This Delta deal was found by Cheapflights users on 9/17. 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 10/227:00 pm -
1 stop6h 31m
Sun 10/255:30 am -
1 stop7h 02m
Deal found 9/17![Delta logo]()
$495
One-way flights from St. Louis to MissoulaSearch for one-way flight options from St. Louis to Missoula. Find affordable one-way fares based on user searches. Data last updated September 21, 2026.
Search for one-way flight options from St. Louis to Missoula. Find affordable one-way fares based on user searches. Data last updated September 21, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/20. 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.
Mon 11/306:35 pm -
3 stops48h 14m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Multiple Airlines logo]()
$174
This Kiwi.com deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/86:13 pm -
2 stops40h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Multiple Airlines logo]()
$222
This American Airlines deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/82:54 pm -
1 stop6h 21m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![American Airlines logo]()
$241
This Delta deal was found by Cheapflights users on 9/17. 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 1/27:38 pm -
1 stop6h 04m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![Delta logo]()
$325
This United Airlines deal was found by Cheapflights users on 9/21. 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 1/29:35 am -
2 stops13h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![United Airlines logo]()
$335
This American Airlines deal was found by Cheapflights users on 9/20. 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.
Mon 11/305:00 am -
1 stop8h 48m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![American Airlines logo]()
$340
This Priceline deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/266:04 am -
1 stop7h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Alaska Airlines logo]()
$540
This United Airlines deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/86:00 am -
3 stops13h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![United Airlines logo]()
$591
Find flight deals from St. Louis to Missoula
Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Missoula (MSO). 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 September 21, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $465 (American Airlines) |
One-way from | $174 (Kiwi.com) |
Popular in | December |
Cheapest in | March |
Average price | $566 |
Cheapflights Fare Finder
Customize your flight search to find flights from St. Louis to Missoula 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 7,457,451 searches. Data last updated September 21, 2026.
Use the filters below to find and compare flights from St. Louis to Missoula that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
St. LouisMissoula
STL Lambert-St Louis - MSO Missoula Johnson-Bell Field
STLMSO
Lambert-St Louis
Mon 11/30
6:35 pm-5:49 pm
3 stops48h 14m
Missoula Johnson-Bell Field
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$174
Quickest round-trip
St. LouisMissoula
STL Lambert-St Louis - MSO Missoula Johnson-Bell Field
STLMSO
Lambert-St Louis
Sat 1/2
7:38 pm-12:42 am
1 stop6h 04m
Missoula Johnson-Bell Field
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$325
St. LouisMissoula
STL Lambert-St Louis - MSO Missoula Johnson-Bell Field
STLMSO
Lambert-St Louis
Sat 1/2
9:35 am-9:40 pm
2 stops13h 05m
Missoula Johnson-Bell Field
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$335
St. LouisMissoula
STL Lambert-St Louis - MSO Missoula Johnson-Bell Field
STLMSO
Lambert-St Louis
Wed 11/4
8:15 pm-12:36 pm
1 stop17h 21m
Missoula Johnson-Bell Field
Sun 11/8
1:06 pm-10:53 am
1 stop20h 47m
$465
St. LouisMissoula
STL Lambert-St Louis - MSO Missoula Johnson-Bell Field
STLMSO
Lambert-St Louis
Mon 10/19
7:00 pm-12:31 am
1 stop6h 31m
Missoula Johnson-Bell Field
Mon 10/26
6:23 pm-12:44 am
1 stop5h 21m
$481
St. LouisMissoula
STL Lambert-St Louis - MSO Missoula Johnson-Bell Field
STLMSO
Lambert-St Louis
Tue 10/20
7:00 pm-12:31 am
1 stop6h 31m
Missoula Johnson-Bell Field
Mon 10/26
6:23 pm-12:44 am
1 stop5h 21m
$481
St. LouisMissoula
STL Lambert-St Louis - MSO Missoula Johnson-Bell Field
STLMSO
Lambert-St Louis
Thu 10/22
7:00 pm-12:31 am
1 stop6h 31m
Missoula Johnson-Bell Field
Sun 10/25
5:30 am-1:32 pm
1 stop7h 02m
$495
St. LouisMissoula
STL Lambert-St Louis - MSO Missoula Johnson-Bell Field
STLMSO
Lambert-St Louis
Wed 11/4
3:35 pm-10:51 pm
2 stops8h 16m
Missoula Johnson-Bell Field
Sun 11/8
6:23 pm-12:44 am
1 stop5h 21m
$500
St. LouisMissoula
STL Lambert-St Louis - MSO Missoula Johnson-Bell Field
STLMSO
Lambert-St Louis
Sat 12/26
6:04 am-12:22 pm
1 stop7h 18m
Missoula Johnson-Bell Field
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$540
St. LouisMissoula
STL Lambert-St Louis - MSO Missoula Johnson-Bell Field
STLMSO
Lambert-St Louis
Sun 10/18
7:45 am-12:34 pm
1 stop5h 49m
Missoula Johnson-Bell Field
Sun 10/25
6:23 pm-12:44 am
1 stop5h 21m
$545
Showing 1-10 of 13 resultsSorted by cheapest first
Compare providers for flights from St. Louis to Missoula
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Missoula in September.
| 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 St. Louis-Missoula flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Missoula flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Missoula flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on St. Louis-Missoula flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Missoula flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from St. Louis to Missoula
Have a flexible travel schedule? Discover the best time to fly to Missoula from St. Louis with our price prediction graph.
STL-MSO
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from St. Louis to Missoula
Reviews of airlines servicing Missoula
Get insights into the airlines that provide service to Missoula. 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 Missoula. Reviews last updated September 21, 2026.
See what other customers who have flown with Delta and United Airlines from St. Louis to Missoula have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.8
Overall
7.8
Food
7.2
Crew
8.5
Boarding
8.1
Comfort
7.8
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
Entertainment
7.8
Overall
7.8
Food
7.2
Crew
8.5
Boarding
8.1
Comfort
7.8
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
Entertainment
7.8
Overall
7.8
Food
7.2
Crew
8.5
Boarding
8.1
Comfort
7.8
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
Related info for your journey
Find useful and relevant information for your journey from St. Louis to Missoula. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Other flights to Missoula
Explore flights to Missoula departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 21, 2026.
St. Louis and Missoula flights
Browse other St. Louis and Missoula flight options. Last updated on September 21, 2026.
Other flights from St. Louis
Browse through other flights departing from St. Louis. Flights are based on user searches made on Cheapflights and were last updated on September 21, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 2 airlines flying from St. Louis to Missoula
Discover the top 2 airlines that operate flights from St. Louis to Missoula. 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 7,457,451 searches. Data last updated September 21, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$179 | Average$448 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$257 | Average$490 | FlexibilityNo cancel fee | On-time69% |