What is the cheapest airline that flies from Lambert-St Louis to Missoula Johnson-Bell Field?

Delta, Alaska Airlines, and United Airlines are the most popular carriers operating from Lambert-St Louis to Missoula Johnson-Bell Field

When did momondo last update prices for flights from Lambert-St Louis Airport to Missoula Johnson-Bell Field Airport?

Prices for flights from Lambert-St Louis Airport to Missoula Johnson-Bell Field Airport are updated daily.

How many operators does momondo search for flights from Lambert-St Louis Airport to Missoula Johnson-Bell Field Airport?

There are 2 operators available for flights from Lambert-St Louis Airport to Missoula Johnson-Bell Field Airport as of June 2026.

How old do you have to be to fly from Lambert-St Louis Airport to Missoula Johnson-Bell Field Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Missoula Johnson-Bell Field Airport.

What documentation or ID do you need to fly to Missoula Johnson-Bell Field Airport?

The travel and health documents you'll need for your trip to Missoula Johnson-Bell Field Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Missoula Johnson-Bell Field Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$200 Cheap Flights from St. Louis to Missoula in 2026

Q: What is the typical price of a round-trip flight between St. Louis and Missoula?

Prices are currently low for flights on this route. Typical prices usually range from $352 to $604. The lowest price recently found on this route was $349.

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from St. Louis to Missoula

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

5:34 pm - 11:47 pm

STL

MSO

7h 13m

1 stop

6:27 pm - 12:41 am

MSO

STL

5h 14m

1 stop

$349Delta

Tue, Aug 4 - Wed, Aug 12

5:34 pm - 11:47 pm

STL

MSO

7h 13m

1 stop

6:27 pm - 12:41 am

MSO

STL

5h 14m

1 stop

$374Delta

Tue, Aug 4 - Wed, Aug 12

7:00 am - 2:50 pm

STL

MSO

8h 50m

1 stop

3:46 pm - 11:59 pm

MSO

STL

7h 13m

1 stop

$399Alaska Airlines

Tue, Oct 27 - Sat, Oct 31

7:10 pm - 9:34 am

STL

MSO

15h 24m

1 stop

10:24 am - 8:57 am

MSO

STL

21h 33m

2 stops

$424Multiple Airlines

Sat, Jul 11 - Sun, Jul 19

1:36 pm - 10:30 pm

STL

MSO

9h 54m

2 stops

2:40 pm - 8:38 pm

MSO

STL

4h 58m

1 stop

$426United Airlines

Fri, Sep 11 - Fri, Sep 18

7:56 pm - 10:42 am

STL

MSO

15h 46m

1 stop

5:41 pm - 5:10 pm

MSO

STL

22h 29m

1 stop

$431Alaska Airlines

Mon, Aug 10 - Tue, Aug 18

7:10 pm - 9:34 am

STL

MSO

15h 24m

1 stop

10:24 am - 8:57 am

MSO

STL

21h 33m

2 stops

$441Multiple Airlines

Sat, Jul 11 - Sun, Jul 19

7:30 am - 9:26 pm

STL

MSO

14h 56m

2 stops

2:27 pm - 8:59 pm

MSO

STL

5h 32m

1 stop

$444United Airlines

Tue, Oct 27 - Sat, Oct 31

7:10 pm - 9:34 am

STL

MSO

15h 24m

1 stop

10:24 am - 7:23 pm

MSO

STL

31h 59m

2 stops

$453Multiple Airlines

Sat, Jul 11 - Sun, Jul 19

5:34 pm - 11:47 pm

STL

MSO

7h 13m

1 stop

6:27 pm - 12:41 am

MSO

STL

5h 14m

1 stop

$459Delta

Tue, Aug 4 - Wed, Aug 12

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Alaska Airlines flights from St. Louis to Missoula

Our best Alaska Airlines deals on St. Louis to Missoula flight tickets

Alaska Airlines

Aug 18

STL8:00 amLambert-St Louis

15h 52m

2 stops

MSO10:52 pmMissoula Johnson-Bell Field

Aug 25

MSO7:15 amMissoula Johnson-Bell Field

14h 44m

2 stops

STL10:59 pmLambert-St Louis

$460

Alaska Airlines

Jun 29

STL2:50 pmLambert-St Louis

10h 06m

1 stop

MSO11:56 pmMissoula Johnson-Bell Field

Jul 3

MSO5:41 pmMissoula Johnson-Bell Field

21h 56m

1 stop

STL4:37 pmLambert-St Louis

$494

Alaska Airlines

Aug 27

STL6:00 amLambert-St Louis

17h 59m

2 stops

MSO10:59 pmMissoula Johnson-Bell Field

Aug 30

MSO7:15 amMissoula Johnson-Bell Field

12h 21m

2 stops

STL8:36 pmLambert-St Louis

$529

United Airlines flights from St. Louis to Missoula

Our best United Airlines deals on St. Louis to Missoula flight tickets

United Airlines

Aug 4

STL5:10 amLambert-St Louis

5h 45m

1 stop

MSO9:55 amMissoula Johnson-Bell Field

Aug 12

MSO6:15 amMissoula Johnson-Bell Field

14h 45m

2 stops

STL10:00 pmLambert-St Louis

$536

United Airlines

Aug 4

STL1:38 pmLambert-St Louis

11h 18m

2 stops

MSO11:56 pmMissoula Johnson-Bell Field

Aug 12

MSO6:15 amMissoula Johnson-Bell Field

14h 45m

2 stops

STL10:00 pmLambert-St Louis

$582

United Airlines

Jun 29

STL5:10 amLambert-St Louis

5h 45m

1 stop

MSO9:55 amMissoula Johnson-Bell Field

Jul 3

MSO6:05 amMissoula Johnson-Bell Field

10h 22m

2 stops

STL5:27 pmLambert-St Louis

$584

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

St. LouisMissoula

STL - MSO

STLMSO

Lambert-St Louis

Tue 8/4

5:34 pm-11:47 pm

1 stop7h 13m

Missoula Johnson-Bell Field

Wed 8/12

6:27 pm-12:41 am

1 stop5h 14m

$349

St. LouisMissoula

STL - MSO

STLMSO

Lambert-St Louis

Tue 8/4

5:34 pm-11:47 pm

1 stop7h 13m

Missoula Johnson-Bell Field

Wed 8/12

6:27 pm-12:41 am

1 stop5h 14m

$374

St. LouisMissoula

STL - MSO

STLMSO

Lambert-St Louis

Tue 10/27

7:00 am-2:50 pm

1 stop8h 50m

Missoula Johnson-Bell Field

Sat 10/31

3:46 pm-11:59 pm

1 stop7h 13m

$399

St. LouisMissoula

STL - MSO

STLMSO

Lambert-St Louis

Sat 7/11

7:10 pm-9:34 am

1 stop15h 24m

Missoula Johnson-Bell Field

Sun 7/19

10:24 am-8:57 am

2 stops21h 33m

$424

St. LouisMissoula

STL - MSO

STLMSO

Lambert-St Louis

Fri 9/11

1:36 pm-10:30 pm

2 stops9h 54m

Missoula Johnson-Bell Field

Fri 9/18

2:40 pm-8:38 pm

1 stop4h 58m

$426

St. LouisMissoula

STL - MSO

STLMSO

Lambert-St Louis

Mon 8/10

7:56 pm-10:42 am

1 stop15h 46m

Missoula Johnson-Bell Field

Tue 8/18

5:41 pm-5:10 pm

1 stop22h 29m

$431

St. LouisMissoula

STL - MSO

STLMSO

Lambert-St Louis

Sat 7/11

7:10 pm-9:34 am

1 stop15h 24m

Missoula Johnson-Bell Field

Sun 7/19

10:24 am-8:57 am

2 stops21h 33m

$441

St. LouisMissoula

STL - MSO

STLMSO

Lambert-St Louis

Tue 10/27

7:30 am-9:26 pm

2 stops14h 56m

Missoula Johnson-Bell Field

Sat 10/31

2:27 pm-8:59 pm

1 stop5h 32m

$444

St. LouisMissoula

STL - MSO

STLMSO

Lambert-St Louis

Sat 7/11

7:10 pm-9:34 am

1 stop15h 24m

Missoula Johnson-Bell Field

Sun 7/19

10:24 am-7:23 pm

2 stops31h 59m

$453

St. LouisMissoula

STL - MSO

STLMSO

Lambert-St Louis

Tue 8/4

5:34 pm-11:47 pm

1 stop7h 13m

Missoula Johnson-Bell Field

Wed 8/12

6:27 pm-12:41 am

1 stop5h 14m

$459

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from St. Louis to Missoula

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the typical price of a round-trip flight between St. Louis and Missoula?

What is the cheapest month to fly to Missoula?

The month of December is, on average, the cheapest month to fly to Missoula from St. Louis, with most prices found around $0. If you are unable to visit Missoula during the month of December, then departing from St. Louis during the month March is also very affordable. Most momondo users find prices during this month for around $257.

When to book flights from St. Louis to Missoula

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Missoula according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap St. Louis to Missoula (STL to MSO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Missoula

Fastest flight time	5h 33m
Direct flights	None

The fastest flight from St. Louis to Missoula takes 5h 33m

There are no direct flights from St. Louis to Missoula. There are no popular flight routes from St. Louis to Missoula.

Search flight deals

Frequently asked questions about flying from St. Louis to Missoula

How far is Lambert-St Louis to Missoula Johnson-Bell Field by plane?
Missoula Johnson-Bell Field is 1327.0 mi away from Lambert-St Louis. 5h 33m is a normal flight duration for this route.
When did momondo last update prices for flights from Lambert-St Louis Airport to Missoula Johnson-Bell Field Airport?
Prices for flights from Lambert-St Louis Airport to Missoula Johnson-Bell Field Airport are updated daily.
How many operators does momondo search for flights from Lambert-St Louis Airport to Missoula Johnson-Bell Field Airport?
There are 2 operators available for flights from Lambert-St Louis Airport to Missoula Johnson-Bell Field Airport as of June 2026.
How old do you have to be to fly from Lambert-St Louis Airport to Missoula Johnson-Bell Field Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Missoula Johnson-Bell Field Airport.
What documentation or ID do you need to fly to Missoula Johnson-Bell Field Airport?
The travel and health documents you'll need for your trip to Missoula Johnson-Bell Field Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Missoula Johnson-Bell Field Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from St. Louis to Missoula?
Based on momondo bookings for flights between St. Louis and Missoula, the leading airline is United Airlines, making up 56% of the total bookings. Other popular airlines include Delta with 44%.

Best airlines flying from St. Louis to Missoula

Compare and see reviews for airlines that fly from St. Louis to Missoula with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $179	Free Cancellation	Rating 7.8 8,419 reviews		Search Delta flights
United Airlines	PriceFrom $257	Free Cancellation	Rating 7.4 9,860 reviews		Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Missoula?

Finding the right flight to Missoula from St. Louis is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Missoula quick and easy, saving you time and money.

Can I find flights from St. Louis to Missoula with flexible booking policies on momondo?

Flights from St. Louis to Missoula with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from St. Louis to Missoula?

momondo helps you find the best flight between St. Louis and Missoula by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from St. Louis to Missoula right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Missoula, momondo offers a useful price alert feature which will track prices for flights to Missoula from St. Louis and alert you when they change.