Cheap flights from St. Louis to Missoula (STL - MSO)

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The best prices from Lambert-St Louis to Missoula Johnson-Bell Field are usually found in August or October, booked 60 days in advance, depart on a Tuesday or Wednesday and return on a Friday

How to find the cheapest flight from
St. Louis (STL) to Missoula (MSO)

All the information you need to plan the best STL to MSO flight in 2022: compare St. Louis to Missoula flight prices with the expected peak season, weather and rainfall in Missoula.
STL - MSO
Price
$215 - $528
MSO
Temperature
24.8 - 68 °F
MSO
Precipitation
0.7 - 2.1 inches

Popular in

December

High demand for flights, 35% potential price rise

Cheapest in

August

Best time to find cheap flights, 37% potential price drop

Average price

$333

Average for round-trip flights in January 2022

Round-trip from

$215

From Lambert-St Louis to Missoula Johnson-Bell Field

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly round-trip from St. Louis to Missoula?

Monday is generally a great day to depart. Flying on this day could help you save up to 57%.

What is the cheapest month to fly from St. Louis to Missoula?

The best pricing can be found in the month of August. Prices to Missoula from St. Louis average $343. You can even find prices in August for less than $343, as users have found deals to Missoula from as low as $154. The month of December appears to be one of the more expensive times to travel to Missoula from St. Louis. Flying in the targeted month can save you up to 54%.

When is the cheapest time to fly from St. Louis to Missoula (STL - MSO)?

One of the essential ways to save on airfare from St. Louis to Missoula is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the afternoon could potentially save you up to 34% on airfare.

How far in advance should I book a flight from St. Louis to Missoula?

Find a great deal and save up to 37% by booking at least 61 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from St. Louis to Missoula within the next two weeks, with the cheapest ticket starting at $354.

Cheap flights from St. Louis to Missoula in January, February 2022

The best prices found for STL to MSO flights for January, February
20 Jan - 24 Jan
$261pp
STL
Lambert-St Louis
Multiple Airlines
 
1 STOP
MSO
Missoula Johnson-Bell Field
MSO
Missoula Johnson-Bell Field
Multiple Airlines
 
1 STOP
STL
Lambert-St Louis
20 Jan - 24 Jan
$312pp
STL
Lambert-St Louis
Multiple Airlines
 
1 STOP
MSO
Missoula Johnson-Bell Field
MSO
Missoula Johnson-Bell Field
Multiple Airlines
     
3 STOPS
STL
Lambert-St Louis
20 Jan - 27 Jan
$321pp
STL
Lambert-St Louis
Multiple Airlines
 
1 STOP
MSO
Missoula Johnson-Bell Field
MSO
Missoula Johnson-Bell Field
Multiple Airlines
   
2 STOPS
STL
Lambert-St Louis

Lambert-St Louis to Missoula 2022 flight deals

Cheap flights to Missoula from St. Louis found for this year
3 Mar - 11 Mar
$186pp
STL
Lambert-St Louis
Multiple Airlines
 
1 STOP
MSO
Missoula Johnson-Bell Field
MSO
Missoula Johnson-Bell Field
Multiple Airlines
 
1 STOP
STL
Lambert-St Louis
3 Mar - 11 Mar
$218pp
STL
Lambert-St Louis
Multiple Airlines
 
1 STOP
MSO
Missoula Johnson-Bell Field
MSO
Missoula Johnson-Bell Field
Multiple Airlines
 
1 STOP
STL
Lambert-St Louis
2 May - 9 May
$254pp
STL
Lambert-St Louis
Multiple Airlines
 
1 STOP
MSO
Missoula Johnson-Bell Field
MSO
Missoula Johnson-Bell Field
Multiple Airlines
 
1 STOP
STL
Lambert-St Louis

One-way flights to Johnson-Bell Field from St. Louis

The cheapest one-way flights from St. Louis to Missoula
3:41 pm - 8:07 pm
Multiple Airlines
3 Stops
29h 26m
STL - MSO
Multiple Airlines
$238
Kiwi.com
5:58 am - 10:37 am
American Airlines
1 Stop
5h 39m
STL - MSO
American Airlines
7:51 am - 7:05 pm
Alaska Airlines
2 Stops
12h 14m
STL - MSO
Alaska Airlines
$318
Alaska Airlines

Related info for your journey

Useful info, stats and facts about <span class="emphasized">St. Louis</span> to <span class="emphasized">Missoula</span> flights.

Flight FAQs

From St. Louis to Missoula

Which airlines flying from Lambert-St Louis to Missoula Johnson-Bell Field have flexible cancellations due to COVID-19?

United Airlines, Delta, and American Airlines are some of the carriers that may have flexible cancellation policies. You can use our site to filter for other airlines that may also have this kind of flexibility.

Can I find flights from St. Louis to Missoula for under $200 on Cheapflights?

Yes, there are multiple flights from St. Louis to Missoula for under $200. The cheapest flight booked recently is on Multiple Airlines for just $186, but on average you can expect to pay $260.

What is the cheapest airline to fly from St. Louis to Missoula round-trip?

Cheapflights users have booked flights from St. Louis to Missoula round-trip from $318. This flight start at 7% lower than the current average price 3 months from now.

What are the cheapest flights from St. Louis to Missoula?

Looking at all options, your cheapest flight can be booked for $91. While the most popular route (Lambert-St Louis - Missoula Johnson-Bell Field) can be booked for $218 on average our data indicates $910 when flying from St. Louis to Missoula.

What are the most popular airlines that fly from St. Louis to Missoula?

American Airlines, Delta and Frontier are the most popular airlines when flying from St. Louis to Missoula.

COVID Restrictions

View COVID Travel Restrictions for Missoula, MT

Do I need a COVID test to fly to Missoula from St. Louis?

Information is based on travel restrictions for travel to Missoula Johnson-Bell Field within the United States

Most visitors from Lambert-St Louis need to provide a negative COVID-19 test result and/or quarantine to enter Missoula Johnson-Bell Field.

COVID-19 testing requirements
Visitors from Lambert-St Louis must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 24 hours before departing to Missoula Johnson-Bell Field.

Quarantine requirements
Visitors from Lambert-St Louis are not required to quarantine after entering Missoula Johnson-Bell Field.

Do I need a test to fly back to St. Louis from Missoula?

Returning to Lambert-St Louis from Missoula Johnson-Bell Field

COVID-19 testing requirements
Visitors from Missoula Johnson-Bell Field must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 24 hours before departing to Lambert-St Louis.

Quarantine requirements
Visitors from Missoula Johnson-Bell Field are not required to quarantine after entering Lambert-St Louis.

Hide COVID Travel Restrictions for Missoula, MT

Alternative routes for St. Louis to Missoula

See prices for flight routes from nearby airports that may be better suited for you.

Destination information for Missoula

Things to know before you go - useful duration and weather info for your trip from St. Louis to Missoula.
Average temperature for January in Missoula
33.8 °F
Avg rainfall for January in Missoula
0.9 ″

Airports servicing St. Louis

Airports servicing Missoula

Top 4 airlines flying from Lambert-St Louis to Missoula Johnson-Bell Field

The chart below displays the airlines Cheapflights users traveling from St. Louis to Missoula choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline Cheapest Average Flexibility On-time COVID-19 safety
Frontier
$108 $231 No cancel fee 62%
American Airlines
$152 $368 No cancel fee 71%
Delta
$154 $362 No cancel fee N/A
United Airlines
$200 $387 No cancel fee 69%
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