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

STL — MSO
Dec 3 — Dec 101

The best prices from Lambert-St Louis to Missoula Johnson-Bell Field are usually found in January or February, booked 45 days in advance, depart on a Wednesday or Tuesday and return on a Saturday

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

$316 - $899

MSO

Temperature

24.8 - 68 °F

MSO

Rainfall

0.7 - 2.1 inches

Popular inJuneHigh demand for flights, 38% potential price rise
Cheapest inJanuaryBest time to find cheap flights, 44% potential price drop
Average price$589Average for round-trip flights in November 2022
Round-trip from$316From Lambert-St Louis to Missoula Johnson-Bell Field

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

Tuesday is generally a great day to depart. Flying on this day could help you save up to 32%.

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

Find a great deal and save up to 24% by booking at least 45 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 $665.

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

The best pricing can be found in the month of January. Prices to Missoula from St. Louis average $559. You can even find prices in January for less than $559, as users have found deals to Missoula from as low as $228. The month of June 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 60%.

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 at noon tend to be the most expensive. A flight in the evening could potentially save you up to 44% on airfare.

Cheap flights from St. Louis to Missoula in November, December 2022

The best prices found for STL to MSO flights for November, December
Dec 16 - Dec 20
STL

Lambert-St Louis

MSO

Missoula Johnson-Bell Field

1 stop

24h 36m
MSO

Missoula Johnson-Bell Field

STL

Lambert-St Louis

1 stop

12h 58m
$295

Multiple Airlines

Pick Dates

Deal found 11/25

Nov 27 - Dec 4
STL

Lambert-St Louis

MSO

Missoula Johnson-Bell Field

1 stop

24h 14m
MSO

Missoula Johnson-Bell Field

STL

Lambert-St Louis

1 stop

23h 57m
$383

Multiple Airlines

Pick Dates

Deal found 11/26

Dec 2 - Dec 4
STL

Lambert-St Louis

MSO

Missoula Johnson-Bell Field

1 stop

7h 36m
MSO

Missoula Johnson-Bell Field

STL

Lambert-St Louis

1 stop

23h 57m
$485

Multiple Airlines

Pick Dates

Deal found 11/25

St. Louis to Missoula 2022 flight deals

Cheap flights to Missoula from St. Louis found for this year
Dec 16 - Dec 20
STL

Lambert-St Louis

MSO

Missoula Johnson-Bell Field

1 stop

24h 36m
MSO

Missoula Johnson-Bell Field

STL

Lambert-St Louis

1 stop

12h 58m
$295

Multiple Airlines

Pick Dates

Deal found 11/25

Nov 27 - Dec 4
STL

Lambert-St Louis

MSO

Missoula Johnson-Bell Field

1 stop

24h 14m
MSO

Missoula Johnson-Bell Field

STL

Lambert-St Louis

1 stop

23h 57m
$383

Multiple Airlines

Pick Dates

Deal found 11/26

Dec 2 - Dec 4
STL

Lambert-St Louis

MSO

Missoula Johnson-Bell Field

1 stop

7h 36m
MSO

Missoula Johnson-Bell Field

STL

Lambert-St Louis

1 stop

23h 57m
$485

Multiple Airlines

Pick Dates

Deal found 11/25

Cheap Delta flights from St. Louis to Missoula

Dec 6 - Dec 7
STL

Lambert-St Louis

MSO

Missoula Johnson-Bell Field

1 stop

8h 19m
MSO

Missoula Johnson-Bell Field

STL

Lambert-St Louis

1 stop

5h 10m
$652

Delta

Pick Dates

Deal found 11/26

Dec 6 - Dec 7
STL

Lambert-St Louis

MSO

Missoula Johnson-Bell Field

1 stop

6h 42m
MSO

Missoula Johnson-Bell Field

STL

Lambert-St Louis

2 stops

9h 57m
$656

Delta

Pick Dates

Deal found 11/26

Dec 6 - Dec 7
STL

Lambert-St Louis

MSO

Missoula Johnson-Bell Field

2 stops

8h 34m
MSO

Missoula Johnson-Bell Field

STL

Lambert-St Louis

2 stops

9h 57m
$661

Delta

Pick Dates

Deal found 11/26

Last minute flights from St. Louis to Missoula

Late deals on return flights to Missoula from St. Louis, departing today and this week
Dec 6 - Dec 7
STL

Lambert-St Louis

MSO

Missoula Johnson-Bell Field

1 stop

8h 19m
MSO

Missoula Johnson-Bell Field

STL

Lambert-St Louis

1 stop

5h 10m
$652

Delta

Pick Dates

Deal found 11/26

Dec 6 - Dec 7
STL

Lambert-St Louis

MSO

Missoula Johnson-Bell Field

1 stop

6h 42m
MSO

Missoula Johnson-Bell Field

STL

Lambert-St Louis

2 stops

9h 57m
$656

Delta

Pick Dates

Deal found 11/26

Dec 6 - Dec 7
STL

Lambert-St Louis

MSO

Missoula Johnson-Bell Field

2 stops

8h 34m
MSO

Missoula Johnson-Bell Field

STL

Lambert-St Louis

2 stops

9h 57m
$661

Delta

Pick Dates

Deal found 11/26

Related info for your journey

Useful info, stats and facts about St. Louis to Missoula flights.

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

Delta, United Airlines, 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.

Are there last-minute flights available from St. Louis to Missoula for under $700?

There are currently 4+ open flights from St. Louis to Missoula within the next 7 days for less than $700.

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

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

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

Looking at all options, your cheapest flight can be booked for $271. While the most popular route (Lambert-St Louis - Missoula Johnson-Bell Field) can be booked for $383 on average our data indicates $839 when flying from St. Louis to Missoula.

Alternative routes for St. Louis to Missoula

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

Top 4 airlines flying from St. Louis to Missoula

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.
AirlineCheapestAverageFlexibilityOn-timeCOVID-19 safety
Alaska AirlinesCheapest$207Average$744FlexibilityNo cancel feeOn-time75%COVID-19 safety
Search Alaska Airlines flights
United AirlinesCheapest$288Average$637FlexibilityNo cancel feeOn-time69%COVID-19 safety
Search United Airlines flights
American AirlinesCheapest$344Average$542FlexibilityNo cancel feeOn-time71%COVID-19 safety
Search American Airlines flights
DeltaCheapest$393Average$579FlexibilityNo cancel feeOn-timeN/ACOVID-19 safety
Search Delta flights