St. Louis

$207+ 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 7/23. Fares are subject to change and may not be available on all flights or dates of travel.
MSO — STL
مايو 28 — يونيو 41
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Cheap flight deals from Missoula to St. Louis

Cheapest flights from Missoula to St. Louis
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 أبريل 28, 2026.

This Delta deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ن 5/186:05 pm
MSO
-
STL
1 stop5h 25m
Delta
ح 5/317:00 am
STL
-
MSO
1 stop6h 34m
Delta
Deal found 4/27$349
This Delta deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ن 5/186:05 pm
MSO
-
STL
1 stop5h 25m
Delta
ر 5/273:11 pm
STL
-
MSO
2 stops10h 11m
Delta
Deal found 4/27$354
This Delta deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
خ 5/215:30 am
MSO
-
STL
2 stops10h 16m
Delta
ر 5/271:59 pm
STL
-
MSO
2 stops11h 23m
Delta
Deal found 4/27$359
This Kiwi.com deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ج 5/158:54 pm
MSO
-
STL
2 stops26h 27m
Multiple Airlines
ر 5/276:51 pm
STL
-
MSO
1 stop15h 32m
Multiple Airlines
Deal found 4/27$366
This Delta deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ر 5/136:05 pm
MSO
-
STL
1 stop5h 25m
Delta
ر 5/275:36 pm
STL
-
MSO
1 stop7h 04m
Delta
Deal found 4/27$374
This Delta deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ر 5/136:05 pm
MSO
-
STL
1 stop5h 25m
Delta
خ 5/281:59 pm
STL
-
MSO
2 stops10h 41m
Delta
Deal found 4/27$379
This Delta deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ر 5/131:14 pm
MSO
-
STL
2 stops9h 07m
Delta
ن 6/15:36 pm
STL
-
MSO
2 stops7h 46m
Delta
Deal found 4/27$384
This Alaska Airlines deal was found by Cheapflights users on 4/22. 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.
ج 8/212:05 pm
MSO
-
STL
1 stop8h 54m
Alaska Airlines
ث 8/255:59 pm
STL
-
MSO
1 stop20h 26m
Alaska Airlines
Deal found 4/22$394
This Delta deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
س 5/93:30 pm
MSO
-
STL
1 stop6h 51m
Delta
ر 5/137:59 pm
STL
-
MSO
1 stop5h 23m
Delta
Deal found 4/24$399
This Delta deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
خ 8/135:45 am
MSO
-
STL
2 stops11h 17m
Delta
ث 9/11:30 pm
STL
-
MSO
2 stops11h 54m
Delta
Deal found 4/23$400
This Delta deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ر 9/233:27 pm
MSO
-
STL
1 stop6h 34m
Delta
ن 9/282:18 pm
STL
-
MSO
2 stops11h 06m
Delta
Deal found 4/24$409

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 أبريل 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$349
(Delta)

One-way from

$207
(Kiwi.com)

Popular in

August

Cheapest in

April

Average price

$301
Provider with most accurate pricing for Missoula Johnson-Bell Field-Lambert-St Louis flight deals.
Provider most trusted by Cheapflights users for Missoula Johnson-Bell Field-Lambert-St Louis flights.
From Missoula Johnson-Bell Field to Lambert-St Louis
One-way flight from Missoula Johnson-Bell Field to Lambert-St Louis
Highest demand for flights based on searches. 13% potential increase in price ($70 potential increase over avg. RT price).
Cheapest flight prices on average. 5% potential price decrease ($22 potential savings vs. average RT price).
Average for round-trip flights in April 2026

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 أبريل 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

Price

Cheapest round-trip
Quickest round-trip

MissoulaSt. Louis

MSO - STL

MSOSTL

Missoula Johnson-Bell Field

ر 9/23

5:45 am-11:30 am

1 stop4h 45m

Lambert-St Louis

ن 9/28

8:50 am-2:37 pm

1 stop6h 47m

$349

MissoulaSt. Louis

MSO - STL

MSOSTL

Missoula Johnson-Bell Field

ن 5/18

6:05 pm-12:30 am

1 stop5h 25m

Lambert-St Louis

خ 5/28

1:59 pm-12:22 am

2 stops11h 23m

$354

MissoulaSt. Louis

MSO - STL

MSOSTL

Missoula Johnson-Bell Field

ن 5/18

6:05 pm-12:30 am

1 stop5h 25m

Lambert-St Louis

ث 6/2

1:59 pm-12:22 am

2 stops11h 23m

$354

MissoulaSt. Louis

MSO - STL

MSOSTL

Missoula Johnson-Bell Field

خ 8/13

6:10 pm-12:36 am

1 stop5h 26m

Lambert-St Louis

ث 9/1

1:30 pm-12:24 am

2 stops11h 54m

$354

MissoulaSt. Louis

MSO - STL

MSOSTL

Missoula Johnson-Bell Field

ر 5/13

1:14 pm-11:21 pm

2 stops9h 07m

Lambert-St Louis

س 5/30

12:59 pm-11:40 pm

2 stops11h 41m

$384

MissoulaSt. Louis

MSO - STL

MSOSTL

Missoula Johnson-Bell Field

س 5/9

3:30 pm-11:21 pm

1 stop6h 51m

Lambert-St Louis

ر 5/13

7:59 pm-12:22 am

1 stop5h 23m

$399
Cheapest one-way

MissoulaSt. Louis

MSO - STL

MSOSTL

Missoula Johnson-Bell Field

خ 7/23

10:24 am-2:07 pm

1 stop26h 43m

$207

MissoulaSt. Louis

MSO - STL

MSOSTL

Missoula Johnson-Bell Field

ن 6/15

2:46 pm-6:51 pm

2 stops27h 05m

$303

MissoulaSt. Louis

MSO - STL

MSOSTL

Missoula Johnson-Bell Field

ج 7/24

1:51 pm-2:49 pm

2 stops23h 58m

$310
Quickest one-way

MissoulaSt. Louis

MSO - STL

MSOSTL

Missoula Johnson-Bell Field

ج 7/24

6:27 pm-12:41 am

1 stop5h 14m

$345

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/27

Showing 1-10 of 11 resultsSorted by cheapest first
1
2

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 April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • 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.
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

How much does it cost to fly round-trip 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 أبريل 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.

Entertainment

7.8

Crew

8.5

Overall

7.9

Boarding

8.1

Food

7.2

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Entertainment

7.8

Crew

8.5

Overall

7.9

Boarding

8.1

Food

7.2

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Entertainment

7.8

Crew

8.5

Overall

7.9

Boarding

8.1

Food

7.2

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

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.
  • How long is the flight from Missoula to St. Louis?

    A quick flight from Missoula to St. Louis can take about 4h 45m. Delta provides one of the quickest options available for as low as $349. Airlines will cover a distance of 1320 mi.

  • What are the cheapest airlines flying from Missoula to St. Louis round-trip?

    Our cheapest airline available from Missoula to St. Louis is Delta. Our recent data shows that you can find tickets from as low as $164 on this airline. An additional option worth looking into is United Airlines, starting at $274. These flights start at 62% lower than the current average price 3 months from now.

  • Can I find deals for flights from Missoula to St. Louis that include hotel bookings?

    Yes. In addition to deals on Missoula to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Missoula to St. Louis?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Missoula to St. Louis.

  • Can I find deals for business class flights from Missoula to St. Louis?

    Yes. Cheapflights offers flight deals from Missoula to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Edwardsville
O'Fallon
Fenton
Swansea
Fairview Heights
Maryland Heights
Collinsville
Eureka
Wentzville
Glencoe
Chesterfield
Alton
Farmington
Festus

Browse thousands of different options on Cheapflights for your next trip

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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 أبريل 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$164Average$378FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$274Average$483FlexibilityNo cancel feeOn-time69%

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