HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Montana

$185+ Cheap flights from St. Louis (STL) to Montana

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/7. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BZN
feb. 25 — mar. 41
mar. 2/25
mar. 3/4
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from St. Louis to Montana with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from St. Louis to Montana

Keep the following information in mind while searching for St. Louis to Montana flight deals. Data was last updated febrero 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$287
(Delta)

One-way from

$185
(United Airlines)

Popular in

December

Cheapest in

November

Average price

$481
Provider with most accurate pricing for Lambert-St Louis-Bozeman Gallatin Field flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-Bozeman Gallatin Field flights.
Search Deals
From Lambert-St Louis to Montana
Search Deals
One-way flight from Lambert-St Louis to Montana
Search Deals
Highest demand for flights based on searches. 0% potential increase in price ($3 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2025
Search Deals

Find flight deals from St. Louis to Montana

Cheapest flights from St. Louis to Montana
Explore the most affordable flight options available from St. Louis to Montana. Find the lowest fares from popular airlines and budget airlines, with prices last updated on febrero 20, 2025.

This Delta deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 3/317:30 pmSTL - BZN
1 stop5h 38mDelta
lun. 4/75:45 amBZN - STL
1 stop6h 34mDelta
Deal found 2/20$287
This Southwest deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 3/311:10 pmSTL - BZN
2 stops11h 05mSouthwest
lun. 4/75:35 pmBZN - STL
1 stop6h 25mSouthwest
Deal found 2/20$308
This Delta deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 3/256:00 amSTL - FCA
1 stop8h 00mDelta
dom. 3/305:55 pmFCA - STL
1 stop5h 37mDelta
Deal found 2/19$312
This Hawaiian Airlines deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 4/146:44 amSTL - MSO
1 stop7h 55mHawaiian Airlines
sáb. 4/192:35 pmMSO - STL
1 stop8h 24mHawaiian Airlines
Deal found 2/20$314
This Delta deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 4/145:34 pmSTL - MSO
2 stops7h 59mDelta
sáb. 4/195:40 amMSO - STL
1 stop6h 48mDelta
Deal found 2/20$320
This Hawaiian Airlines deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/127:00 amSTL - BZN
1 stop8h 05mHawaiian Airlines
mié. 9/172:55 pmBZN - STL
1 stop8h 01mHawaiian Airlines
Deal found 2/19$326
This Alaska Airlines deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 3/266:44 amSTL - FCA
1 stop9h 20mAlaska Airlines
mié. 4/212:44 pmFCA - STL
1 stop10h 15mAlaska Airlines
Deal found 2/19$340
This Delta deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 6/36:59 pmSTL - BIL
1 stop6h 17mDelta
sáb. 6/76:35 pmBIL - STL
1 stop5h 02mDelta
Deal found 2/19$346
This United Airlines deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 3/77:00 amSTL - BZN
1 stop8h 45mUnited Airlines
mar. 3/115:00 amBZN - STL
2 stops8h 23mUnited Airlines
Deal found 2/20$350
This Mytrip deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 3/219:50 amSTL - BZN
2 stops25h 04mMultiple Airlines
lun. 3/246:41 pmBZN - STL
2 stops23h 00mMultiple Airlines
Deal found 2/19$383
This Alaska Airlines deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/127:30 pmSTL - BZN
2 stops29h 28mAlaska Airlines
mié. 9/178:00 amBZN - STL
1 stop9h 37mAlaska Airlines
Deal found 2/19$386
This American Airlines deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/136:06 amSTL - FCA
1 stop5h 37mAmerican Airlines
mar. 9/1611:41 amFCA - STL
1 stop7h 13mAmerican Airlines
Deal found 2/20$439

Find flights from St. Louis to Montana within your budget

Customize your flight search to find flights from St. Louis to Montana that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated febrero 20, 2025.

Fly from

St. Louis

Fly to

Montana

Route

Depart

Return

Price

St. LouisBozeman

STL - BZN

STLBZN

Lambert-St Louis

lun. 3/31

7:30 pm-12:08 am

1 stop5h 38m

Bozeman Gallatin Field

lun. 4/7

5:45 am-1:19 pm

1 stop6h 34m

$287

St. LouisBozeman

STL - BZN

STLBZN

Lambert-St Louis

lun. 3/31

1:10 pm-11:15 pm

2 stops11h 05m

Bozeman Gallatin Field

lun. 4/7

5:35 pm-1:00 am

1 stop6h 25m

$308

St. LouisKalispell

STL - FCA

STLFCA

Lambert-St Louis

mar. 3/25

6:00 am-1:00 pm

1 stop8h 00m

Kalispell Glacier Park

dom. 3/30

5:55 pm-12:32 am

1 stop5h 37m

$312

St. LouisMissoula

STL - MSO

STLMSO

Lambert-St Louis

lun. 4/14

6:44 am-1:39 pm

1 stop7h 55m

Missoula Johnson-Bell Field

sáb. 4/19

2:35 pm-11:59 pm

1 stop8h 24m

$314

St. LouisMissoula

STL - MSO

STLMSO

Lambert-St Louis

lun. 4/14

5:34 pm-12:33 am

2 stops7h 59m

Missoula Johnson-Bell Field

sáb. 4/19

5:40 am-1:28 pm

1 stop6h 48m

$320

St. LouisKalispell

STL - FCA

STLFCA

Lambert-St Louis

mié. 3/26

6:44 am-3:04 pm

1 stop9h 20m

Kalispell Glacier Park

mié. 4/2

12:44 pm-11:59 pm

1 stop10h 15m

$340

St. LouisBozeman

STL - BZN

STLBZN

Lambert-St Louis

vie. 3/7

7:00 am-2:45 pm

1 stop8h 45m

Bozeman Gallatin Field

mar. 3/11

5:00 am-2:23 pm

2 stops8h 23m

$350

St. LouisBozeman

STL - BZN

STLBZN

Lambert-St Louis

vie. 3/21

9:50 am-9:54 am

2 stops25h 04m

Bozeman Gallatin Field

lun. 3/24

6:41 pm-6:41 pm

2 stops23h 00m

$383

St. LouisBozeman

STL - BZN

STLBZN

Lambert-St Louis

mar. 3/4

5:45 am-1:12 pm

1 stop8h 27m

Bozeman Gallatin Field

lun. 3/10

1:57 pm-10:18 pm

1 stop7h 21m

$471

St. LouisKalispell

STL - FCA

STLFCA

Lambert-St Louis

mié. 3/12

12:15 pm-8:42 pm

3 stops33h 27m

Kalispell Glacier Park

dom. 3/16

9:32 pm-12:10 pm

3 stops37h 38m

$480

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 38 results
1
2
3
4

Best time to book a flight from St. Louis to Montana

Have a flexible travel schedule? Discover the best time to fly to Montana from St. Louis with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from St. Louis to Montana

Get recent, data-driven insights about flights from St. Louis to Montana including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from St. Louis to Montana?

Currently, October is the cheapest month in which you can book a flight from St. Louis to Montana (average of $371). Flying from St. Louis to Montana in June is currently the most expensive (average of $520). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from STL to MT?

Find hourly flight availability from St. Louis to Montana. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated febrero 20, 2025.

When flying from St. Louis to Montana, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Montana by month

Plan your trip to Montana by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Montana ranges from 0.4 - 2.0 inches per month. May is typically the wettest month, when rainfall can reach 2.0 in. January is typically the driest time to visit Montana when rainfall is around 0.4 in.

Temperature in Montana by month

Plan your trip to Montana by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Montana, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 64.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 15.8 F).

Reviews of airlines servicing Montana

Get insights into the airlines that provide service to Montana. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Montana. Reviews last updated febrero 20, 2025.
See what other customers who have flown with Southwest, Alaska Airlines and Delta from St. Louis to Montana have to say. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Boarding

8.2

Overall

8.1

Entertainment

7.6

Comfort

8.1

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Southwest
8.1
Very good
4,411 reviews
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Boarding

8.2

Overall

8.1

Entertainment

7.6

Comfort

8.1

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Alaska Airlines
8.0
Very good
9,697 reviews
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Boarding

8.2

Overall

8.1

Entertainment

7.6

Comfort

8.1

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Delta
8.0
Very good
8,219 reviews
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Boarding

8.2

Overall

8.1

Entertainment

7.6

Comfort

8.1

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Hawaiian Airlines
7.9
Good
2,317 reviews
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Boarding

8.2

Overall

8.1

Entertainment

7.6

Comfort

8.1

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

United Airlines
7.4
Good
8,765 reviews
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Boarding

8.2

Overall

8.1

Entertainment

7.6

Comfort

8.1

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Montana. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from St. Louis to Montana?

    Most people fly from Lambert-St Louis (STL) if they book a flight from St. Louis to Montana. Lambert-St Louis is conveniently located just 12.7 mi from St. Louis’s city center.

  • What are the cheapest airlines to fly from St. Louis to Montana one-way?

    To fly one-way, consider booking your trip with United Airlines, which is currently one of the cheapest options available, starting at $185. American Airlines flights start at $229 while deals on Southwest start at $289 one-way.

  • What are the most popular routes from St. Louis to Montana?

    The most popular flight routes from St. Louis to Montana are Lambert-St Louis - Bozeman Gallatin Field, Lambert-St Louis - Kalispell Glacier Park and Lambert-St Louis - Missoula Johnson-Bell Field.

  • Can I find deals for flights from St. Louis to Montana that include hotel bookings?

    Yes. In addition to deals on St. Louis to Montana flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Montana?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Montana.

  • Can I find deals for business class flights from St. Louis to Montana?

    Yes. Cheapflights offers flight deals from St. Louis to Montana by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from St. Louis to Montana?

    Currently, October is the cheapest month in which you can book a flight from St. Louis to Montana (average of $371). Flying from St. Louis to Montana in June is currently the most expensive (average of $520). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for St. Louis to Montana

See prices for flight routes from nearby airports that may be better suited for you.
St. Louis to Seattle flights
Kansas City to Las Vegas flights
St. Louis to Las Vegas flights
Kansas City to Sky Harbor Intl flights
Kansas City to Seattle flights
Kansas City to LaGuardia flights
Kansas City to Los Angeles flights
St. Louis to Miami flights
St. Louis to Orlando flights
Kansas City to O'Hare Intl flights
St. Louis to Sky Harbor Intl flights
Kansas City to John F Kennedy Intl flights
St. Louis to Denver flights
St. Louis to Newark flights
St. Louis to LaGuardia flights
Kansas City to Newark flights
Kansas City to Orlando flights
Kansas City to Miami flights
Kansas City to Dallas/Fort Worth flights
Kansas City to Hobby flights
St. Louis to Hobby flights
St. Louis to Los Angeles flights
Kansas City to Boston flights
Kansas City to San Diego flights
Kansas City to Denver flights
Kansas City to Atlanta flights
St. Louis to John F Kennedy Intl flights
St. Louis to Dulles Intl flights
St. Louis to Atlanta flights
Kansas City to George Bush Intcntl flights
St. Louis to Dallas/Fort Worth flights
Kansas City to Dulles Intl flights
St. Louis to Boston flights
St. Louis to George Bush Intcntl flights
Kansas City to Reagan-National flights
St. Louis to Fort Lauderdale flights
Kansas City to Portland flights
Kansas City to San Francisco flights
Kansas City to Fort Lauderdale flights
St. Louis to Tampa flights
St. Louis to Honolulu flights
St. Louis to San Francisco flights
St. Louis to O'Hare Intl flights
St. Louis to Salt Lake City flights
St. Louis to Philadelphia flights
St. Louis to New Orleans flights
Kansas City to Tampa flights
St. Louis to Baltimore flights
Kansas City to Salt Lake City flights
St. Louis to Reagan-National flights

Top 5 airlines flying from St. Louis to Montana

Discover the top 5 airlines that operate flights from St. Louis to Montana. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated febrero 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$233Average$484FlexibilityNo cancel feeOn-time75%
DeltaCheapest$236Average$515FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$268Average$508FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$278Average$564FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$366Average$562FlexibilityNo cancel feeOn-time63%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.