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 39% 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.

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

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

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 April 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.

$136 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.

6:45 pm - 12:09 am

STL

BZN

6h 24m

1 stop

6:34 pm - 12:25 am

BZN

STL

4h 51m

1 stop

$271Delta

Thu, Apr 23 - Sun, May 3

3:55 pm - 12:15 am

STL

BZN

9h 20m

2 stops

9:55 am - 8:10 pm

BZN

STL

9h 15m

1 stop

$276Southwest

Tue, May 12 - Tue, May 19

5:25 am - 11:35 am

STL

FCA

7h 10m

1 stop

4:45 pm - 11:54 pm

FCA

STL

6h 09m

1 stop

$297American Airlines

Wed, Jun 3 - Tue, Jun 9

5:20 am - 12:53 pm

STL

BZN

8h 33m

1 stop

1:43 pm - 10:59 pm

BZN

STL

8h 16m

1 stop

$299American Airlines

Mon, Apr 13 - Fri, Apr 17

5:10 am - 9:31 am

STL

BZN

5h 21m

1 stop

5:51 pm - 11:57 pm

BZN

STL

5h 06m

1 stop

$301United Airlines

Wed, Aug 5 - Thu, Aug 6

5:10 am - 9:37 am

STL

BZN

5h 27m

1 stop

4:22 pm - 11:50 pm

BZN

STL

6h 28m

1 stop

$313United Airlines

Thu, Aug 6 - Wed, Aug 12

3:33 pm - 10:52 am

STL

GTF

20h 19m

2 stops

11:42 am - 6:06 pm

GTF

STL

29h 24m

1 stop

$313Multiple Airlines

Thu, May 7 - Mon, May 11

3:00 pm - 10:56 pm

STL

FCA

8h 56m

1 stop

6:08 pm - 2:16 pm

FCA

STL

19h 08m

1 stop

$337Alaska Airlines

Sun, Sep 6 - Thu, Sep 10

6:00 am - 12:39 pm

STL

MSO

7h 39m

1 stop

4:13 pm - 11:59 pm

MSO

STL

6h 46m

1 stop

$349Alaska Airlines

Sat, Sep 26 - Wed, Sep 30

12:16 pm - 10:52 am

STL

GTF

23h 36m

1 stop

11:42 am - 6:06 pm

GTF

STL

29h 24m

1 stop

$350Multiple Airlines

Thu, May 7 - Mon, May 11

American Airlines flights from St. Louis to Montana

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

American Airlines

Jun 3

STL5:25 amLambert-St Louis

7h 10m

1 stop

FCA11:35 amKalispell Glacier Park

Jun 9

FCA4:45 pmKalispell Glacier Park

6h 09m

1 stop

STL11:54 pmLambert-St Louis

$297

American Airlines

Apr 13

STL5:20 amLambert-St Louis

8h 33m

1 stop

BZN12:53 pmBozeman Gallatin Field

Apr 17

BZN1:43 pmBozeman Gallatin Field

8h 16m

1 stop

STL10:59 pmLambert-St Louis

$299

American Airlines

Jun 3

STL6:00 amLambert-St Louis

7h 35m

1 stop

FCA12:35 pmKalispell Glacier Park

Jun 8

FCA4:45 pmKalispell Glacier Park

6h 09m

1 stop

STL11:54 pmLambert-St Louis

$317

Southwest flights from St. Louis to Montana

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

Southwest

Apr 23

STL1:30 pmLambert-St Louis

9h 35m

1 stop

BZN10:05 pmBozeman Gallatin Field

May 3

BZN4:25 pmBozeman Gallatin Field

6h 20m

1 stop

STL11:45 pmLambert-St Louis

$271

Southwest

May 12

STL3:55 pmLambert-St Louis

9h 20m

2 stops

BZN12:15 amBozeman Gallatin Field

May 19

BZN9:55 amBozeman Gallatin Field

9h 15m

1 stop

STL8:10 pmLambert-St Louis

$276

Southwest

Apr 18

STL6:15 amLambert-St Louis

5h 00m

1 stop

BZN10:15 amBozeman Gallatin Field

Apr 25

BZN2:55 pmBozeman Gallatin Field

5h 20m

1 stop

STL9:15 pmLambert-St Louis

$285

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisBozeman

STL - BZN

STLBZN

Lambert-St Louis

Thu 4/23

6:45 pm-12:09 am

1 stop6h 24m

Bozeman Gallatin Field

Sun 5/3

6:34 pm-12:25 am

1 stop4h 51m

$271

St. LouisBozeman

STL - BZN

STLBZN

Lambert-St Louis

Tue 5/12

3:55 pm-12:15 am

2 stops9h 20m

Bozeman Gallatin Field

Tue 5/19

9:55 am-8:10 pm

1 stop9h 15m

$276

St. LouisKalispell

STL - FCA

STLFCA

Lambert-St Louis

Wed 6/3

5:25 am-11:35 am

1 stop7h 10m

Kalispell Glacier Park

Tue 6/9

4:45 pm-11:54 pm

1 stop6h 09m

$297

St. LouisBozeman

STL - BZN

STLBZN

Lambert-St Louis

Mon 4/13

5:20 am-12:53 pm

1 stop8h 33m

Bozeman Gallatin Field

Fri 4/17

1:43 pm-10:59 pm

1 stop8h 16m

$299

Quickest round-trip

St. LouisBozeman

STL - BZN

STLBZN

Lambert-St Louis

Wed 8/5

5:10 am-9:31 am

1 stop5h 21m

Bozeman Gallatin Field

Thu 8/6

5:51 pm-11:57 pm

1 stop5h 06m

$301

St. LouisBozeman

STL - BZN

STLBZN

Lambert-St Louis

Thu 8/6

5:10 am-9:37 am

1 stop5h 27m

Bozeman Gallatin Field

Wed 8/12

4:22 pm-11:50 pm

1 stop6h 28m

$313

St. LouisGreat Falls

STL - GTF

STLGTF

Lambert-St Louis

Thu 5/7

3:33 pm-10:52 am

2 stops20h 19m

Great Falls

Mon 5/11

11:42 am-6:06 pm

1 stop29h 24m

$313

St. LouisKalispell

STL - FCA

STLFCA

Lambert-St Louis

Sun 9/6

3:00 pm-10:56 pm

1 stop8h 56m

Kalispell Glacier Park

Thu 9/10

6:08 pm-2:16 pm

1 stop19h 08m

$337

St. LouisMissoula

STL - MSO

STLMSO

Lambert-St Louis

Sat 9/26

6:00 am-12:39 pm

1 stop7h 39m

Missoula Johnson-Bell Field

Wed 9/30

4:13 pm-11:59 pm

1 stop6h 46m

$349

St. LouisGreat Falls

STL - GTF

STLGTF

Lambert-St Louis

Thu 5/7

12:16 pm-10:52 am

1 stop23h 36m

Great Falls

Mon 5/11

11:42 am-6:06 pm

1 stop29h 24m

$350

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 $237, 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 $290.

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 $376 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 $282 on momondo.

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

You could potentially save up to 9% 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	5h 00m
Direct flights	None

The fastest flight from St. Louis to Montana takes 5h 00m

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

Search flight deals

Frequently asked questions about flying from St. Louis to Montana

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 April 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
Delta	PriceFrom $179	Free Cancellation	Rating 7.9 8,368 reviews	Search Delta flights
Southwest	PriceFrom $192	Free Cancellation	Rating 8.0 4,335 reviews	Search Southwest flights
American Airlines	PriceFrom $237	Free Cancellation	Rating 7.1 11,544 reviews	Search American Airlines flights
Alaska Airlines	PriceFrom $238	Free Cancellation	Rating 7.9 12,145 reviews	Search Alaska Airlines flights
United Airlines	PriceFrom $242	Free Cancellation	Rating 7.4 9,529 reviews	Search United 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.