What is the cheapest airline that flies from Lambert-St Louis to Montana?

United Airlines, Southwest, and Delta are the most popular carriers operating from Lambert-St Louis to Montana

What airlines fly to Montana?

United Airlines, American Airlines and Delta are the top three most popular airlines that fly to Montana from St. Louis according to our data. United Airlines is the first choice among our users, with 38% of people opting to fly with this airline when traveling to Montana. Keep in mind that there are 5 different airlines that fly to Montana on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Lambert-St Louis Airport to Montana?

Prices for flights from Lambert-St Louis Airport to Montana refresh daily.

How many operators does momondo search for flights from Lambert-St Louis Airport to Montana?

There are 5 operators available for flights from Lambert-St Louis Airport to Montana as of February 2026.

How old do you have to be to fly from Lambert-St Louis Airport to Montana?

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 Montana.

What documentation or ID do you need to fly to Montana?

The travel and health documents you'll need for your trip to Montana 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 Montana. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$106 Cheap Flights from St. Louis to Montana in 2026

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Find the cheapest flights from St. Louis to Montana

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:00 am - 12:57 pm

STL

BZN

6h 57m

1 stop

1:36 pm - 9:12 pm

BZN

STL

6h 36m

1 stop

$239American Airlines

Mon, Feb 23 - Fri, Feb 27

5:15 am - 9:28 am

STL

BZN

5h 13m

1 stop

2:26 pm - 8:42 pm

BZN

STL

5h 16m

1 stop

$244United Airlines

Mon, May 25 - Sat, May 30

7:59 pm - 11:59 pm

STL

BZN

5h 00m

1 stop

2:19 pm - 11:59 pm

BZN

STL

8h 40m

1 stop

$257Delta

Wed, May 20 - Wed, May 27

6:00 am - 12:35 pm

STL

FCA

7h 35m

1 stop

4:45 pm - 11:54 pm

FCA

STL

6h 09m

1 stop

$257American Airlines

Thu, May 28 - Tue, Jun 2

6:20 am - 1:33 pm

STL

FCA

8h 13m

1 stop

6:13 pm - 12:30 am

FCA

STL

5h 17m

1 stop

$267Delta

Sat, May 9 - Wed, May 13

5:00 pm - 10:02 pm

STL

BZN

6h 02m

1 stop

1:12 pm - 9:06 pm

BZN

STL

6h 54m

1 stop

$267Delta

Sat, May 2 - Sat, May 9

7:00 am - 2:08 pm

STL

BZN

8h 08m

1 stop

3:02 pm - 11:59 pm

BZN

STL

7h 57m

1 stop

$279Alaska Airlines

Mon, Feb 23 - Fri, Feb 27

5:29 pm - 10:40 pm

STL

BZN

6h 11m

1 stop

8:00 am - 3:46 pm

BZN

STL

6h 46m

1 stop

$281United Airlines

Sat, Jun 27 - Sat, Jul 4

7:00 am - 3:35 pm

STL

MSO

9h 35m

1 stop

4:23 pm - 11:59 pm

MSO

STL

6h 36m

1 stop

$283Hawaiian Airlines

Wed, Mar 25 - Wed, Apr 1

7:56 pm - 10:32 am

STL

FCA

15h 36m

1 stop

4:13 pm - 5:06 pm

FCA

STL

23h 53m

1 stop

$297Alaska Airlines

Thu, May 14 - Tue, May 19

American Airlines flights from St. Louis to Montana

Our best American Airlines deals on St. Louis to Montana flight tickets

American Airlines

Feb 23

STL7:00 amLambert-St Louis

6h 57m

1 stop

BZN12:57 pmBozeman Gallatin Field

Feb 27

BZN1:36 pmBozeman Gallatin Field

6h 36m

1 stop

STL9:12 pmLambert-St Louis

$239

American Airlines

May 28

STL6:00 amLambert-St Louis

7h 35m

1 stop

FCA12:35 pmKalispell Glacier Park

Jun 2

FCA4:45 pmKalispell Glacier Park

6h 09m

1 stop

STL11:54 pmLambert-St Louis

$257

American Airlines

Mar 5

STL5:12 amLambert-St Louis

8h 45m

1 stop

BZN12:57 pmBozeman Gallatin Field

Mar 10

BZN7:00 amBozeman Gallatin Field

15h 44m

1 stop

STL11:44 pmLambert-St Louis

$363

Delta flights from St. Louis to Montana

Our best Delta deals on St. Louis to Montana flight tickets

Delta

May 20

STL7:59 pmLambert-St Louis

5h 00m

1 stop

BZN11:59 pmBozeman Gallatin Field

May 27

BZN2:19 pmBozeman Gallatin Field

8h 40m

1 stop

STL11:59 pmLambert-St Louis

$257

Delta

May 2

STL5:00 pmLambert-St Louis

6h 02m

1 stop

BZN10:02 pmBozeman Gallatin Field

May 9

BZN1:12 pmBozeman Gallatin Field

6h 54m

1 stop

STL9:06 pmLambert-St Louis

$267

Delta

May 10

STL7:00 amLambert-St Louis

5h 26m

1 stop

FCA11:26 amKalispell Glacier Park

May 13

FCA6:13 pmKalispell Glacier Park

5h 17m

1 stop

STL12:30 amLambert-St Louis

$278

Fly from

Fly to

Route

Depart

Return

Price

St. LouisBozeman

STL - BZN

STLBZN

Lambert-St Louis

Mon 2/23

7:00 am-12:57 pm

1 stop6h 57m

Bozeman Gallatin Field

Fri 2/27

1:36 pm-9:12 pm

1 stop6h 36m

$239

St. LouisBozeman

STL - BZN

STLBZN

Lambert-St Louis

Mon 5/25

5:15 am-9:28 am

1 stop5h 13m

Bozeman Gallatin Field

Sat 5/30

2:26 pm-8:42 pm

1 stop5h 16m

$244

St. LouisBozeman

STL - BZN

STLBZN

Lambert-St Louis

Wed 5/20

7:59 pm-11:59 pm

1 stop5h 00m

Bozeman Gallatin Field

Wed 5/27

2:19 pm-11:59 pm

1 stop8h 40m

$257

St. LouisKalispell

STL - FCA

STLFCA

Lambert-St Louis

Thu 5/28

6:00 am-12:35 pm

1 stop7h 35m

Kalispell Glacier Park

Tue 6/2

4:45 pm-11:54 pm

1 stop6h 09m

$257

St. LouisKalispell

STL - FCA

STLFCA

Lambert-St Louis

Sat 5/9

6:20 am-1:33 pm

1 stop8h 13m

Kalispell Glacier Park

Wed 5/13

6:13 pm-12:30 am

1 stop5h 17m

$267

St. LouisBozeman

STL - BZN

STLBZN

Lambert-St Louis

Sat 5/2

5:00 pm-10:02 pm

1 stop6h 02m

Bozeman Gallatin Field

Sat 5/9

1:12 pm-9:06 pm

1 stop6h 54m

$267

St. LouisBozeman

STL - BZN

STLBZN

Lambert-St Louis

Mon 2/23

7:00 am-2:08 pm

1 stop8h 08m

Bozeman Gallatin Field

Fri 2/27

3:02 pm-11:59 pm

1 stop7h 57m

$279

St. LouisBozeman

STL - BZN

STLBZN

Lambert-St Louis

Sat 6/27

5:29 pm-10:40 pm

1 stop6h 11m

Bozeman Gallatin Field

Sat 7/4

8:00 am-3:46 pm

1 stop6h 46m

$281

St. LouisMissoula

STL - MSO

STLMSO

Lambert-St Louis

Wed 3/25

7:00 am-3:35 pm

1 stop9h 35m

Missoula Johnson-Bell Field

Wed 4/1

4:23 pm-11:59 pm

1 stop6h 36m

$283

St. LouisKalispell

STL - FCA

STLFCA

Lambert-St Louis

Thu 5/14

7:56 pm-10:32 am

1 stop15h 36m

Kalispell Glacier Park

Tue 5/19

4:13 pm-5:06 pm

1 stop23h 53m

$297

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 Montana

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 cheapest month to fly to Montana?

The cheapest month to fly to Montana from St. Louis is in January. Flight prices, which tend to average around $232, are often lower during this time because this is during the off-season. The month of August is another great option to travel to Montana, with average flight prices from St. Louis averaging around $321.

How far in advance should I book a flight to Montana?

You are more likely to see cheaper flights to Montana from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Montana for around $394 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Montana from St. Louis for as low as $294 on momondo.

Can stopping save me money on St. Louis to Montana flights?

You could potentially save up to 30% on your flight if you consider stops on a St. Louis to Montana flight.

Cheap St. Louis to Montana flight deals and tips

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

Fastest flight time	4h 49m
Direct flights	None

The fastest flight from St. Louis to Montana takes 4h 49m

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

Search flight deals

When did momondo last update prices for flights from Lambert-St Louis Airport to Montana?
Prices for flights from Lambert-St Louis Airport to Montana refresh daily.
How many operators does momondo search for flights from Lambert-St Louis Airport to Montana?
There are 5 operators available for flights from Lambert-St Louis Airport to Montana as of February 2026.
How old do you have to be to fly from Lambert-St Louis Airport to Montana?
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 Montana.
What documentation or ID do you need to fly to Montana?
The travel and health documents you'll need for your trip to Montana 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 Montana. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from St. Louis to Montana

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

Airline	Rating	Free Cancellation	Price
Southwest	PriceFrom $210	Free Cancellation	Rating 8.0 4,280 reviews	Search Southwest flights
American Airlines	PriceFrom $237	Free Cancellation	Rating 7.2 11,266 reviews	Search American Airlines flights
Delta	PriceFrom $256	Free Cancellation	Rating 7.9 8,175 reviews	Search Delta flights
United Airlines	PriceFrom $257	Free Cancellation	Rating 7.4 9,274 reviews	Search United Airlines flights
Alaska Airlines	PriceFrom $257	Free Cancellation	Rating 8.0 11,877 reviews	Search Alaska Airlines flights

Why use momondo?

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

It is quick and easy to find St. Louis to Montana flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Montana that suits you.

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

All flight searches from St. Louis to Montana on momondo can be filtered to show those which offer flexible booking policies.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from St. Louis to Montana.

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

Of course. momondo tracks the price of St. Louis to Montana flights. All you need is a valid email address and we will do the rest; it is that quick and easy.