HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
St. Louis

$163+ Cheap flights from Montana to St. Louis (STL)

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 3/8. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — STL
Nov 25 — Dec 21
Mon 11/25
Mon 12/2
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Montana to St. Louis 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 Montana to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Montana (USMT) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 20, 2024.

Find flight deals from Montana to St. Louis

Cheapest flights from Montana to St. Louis
Explore the most affordable flight options available from Montana to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 20, 2024.

This United Airlines deal was found by Cheapflights users on 11/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/410:45 amBZN - STL
1 stop4h 44mUnited Airlines
Sun 12/86:30 amSTL - BZN
1 stop6h 04mUnited Airlines
Deal found 11/19$446
This United Airlines deal was found by Cheapflights users on 11/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/176:30 amMSO - STL
1 stop5h 13mUnited Airlines
Thu 12/198:35 amSTL - MSO
1 stop5h 57mUnited Airlines
Deal found 11/19$512
This Delta deal was found by Cheapflights users on 11/20. 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.
Thu 12/55:40 amMSO - STL
1 stop6h 50mDelta
Mon 12/96:30 pmSTL - MSO
1 stop7h 14mDelta
Deal found 11/20$574
This United deal was found by Cheapflights users on 11/19. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2810:55 amBIL - STL
1 stop4h 30mUnited Airlines
Thu 1/28:35 amSTL - BIL
1 stop9h 20mUnited Airlines
Deal found 11/19$598
This American Airlines deal was found by Cheapflights users on 11/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/41:47 pmBZN - STL
2 stops18h 58mAmerican Airlines
Sun 12/85:05 amSTL - BZN
1 stop8h 52mAmerican Airlines
Deal found 11/19$608
This American Airlines deal was found by Cheapflights users on 11/20. 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.
Sat 12/281:57 pmBIL - STL
1 stop7h 24mAmerican Airlines
Thu 1/27:04 amSTL - BIL
1 stop7h 23mAmerican Airlines
Deal found 11/20$611
This Alaska Airlines deal was found by Cheapflights users on 11/19. 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.
Sun 12/293:29 pmHLN - STL
1 stop20h 58mAlaska Airlines
Wed 1/17:00 amSTL - HLN
1 stop8h 49mAlaska Airlines
Deal found 11/19$658
This United Airlines deal was found by Cheapflights users on 11/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/286:25 amHLN - STL
1 stop9h 00mUnited Airlines
Wed 1/15:30 pmSTL - HLN
2 stops21h 15mUnited Airlines
Deal found 11/19$670
This Southwest deal was found by Cheapflights users on 11/19. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2710:35 amBZN - STL
1 stop11h 05mSouthwest
Sat 11/305:50 amSTL - BZN
2 stops9h 55mSouthwest
Deal found 11/19$1,110
This Delta deal was found by Cheapflights users on 11/19. 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.
Wed 12/185:55 amBZN - STL
2 stops7h 46mDelta
Wed 12/253:29 pmSTL - BZN
2 stops8h 18mDelta
Deal found 11/19$1,723

Find flights from Montana to St. Louis within your budget

Customize your flight search to find flights from Montana to St. Louis 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 2,629,791 searches. Data last updated November 20, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

BozemanSt. Louis

BZN - STL

BZNSTL

Bozeman Gallatin Field

Tue 1/7

5:45 am-1:18 pm

1 stop6h 33m

Lambert-St Louis

Tue 1/14

6:00 am-2:11 pm

1 stop9h 11m

$318

BozemanSt. Louis

BZN - STL

BZNSTL

Bozeman Gallatin Field

Wed 1/8

5:05 am-4:55 pm

2 stops10h 50m

Lambert-St Louis

Tue 1/14

6:20 am-2:10 pm

1 stop8h 50m

$323

BozemanSt. Louis

BZN - STL

BZNSTL

Bozeman Gallatin Field

Tue 1/7

7:25 am-3:38 pm

1 stop7h 13m

Lambert-St Louis

Mon 1/13

1:02 pm-9:16 pm

2 stops9h 14m

$427

BillingsSt. Louis

BIL - STL

BILSTL

Billings Logan Intl

Tue 4/1

1:45 pm-1:52 pm

2 stops23h 07m

Lambert-St Louis

Tue 4/8

2:55 pm-1:02 pm

2 stops23h 07m

$484

MissoulaSt. Louis

MSO - STL

MSOSTL

Missoula Johnson-Bell Field

Tue 12/17

6:30 am-12:43 pm

1 stop5h 13m

Lambert-St Louis

Thu 12/19

8:35 am-1:32 pm

1 stop5h 57m

$512

MissoulaSt. Louis

MSO - STL

MSOSTL

Missoula Johnson-Bell Field

Fri 4/11

5:30 pm-12:01 am

2 stops29h 31m

Lambert-St Louis

Mon 4/21

2:55 pm-5:10 pm

2 stops27h 15m

$529

BozemanSt. Louis

BZN - STL

BZNSTL

Bozeman Gallatin Field

Mon 5/12

2:55 pm-11:56 pm

1 stop8h 01m

Lambert-St Louis

Tue 5/13

7:00 am-1:49 pm

2 stops31h 49m

$535

BillingsSt. Louis

BIL - STL

BILSTL

Billings Logan Intl

Tue 4/1

7:00 am-4:26 pm

1 stop8h 26m

Lambert-St Louis

Tue 4/8

4:30 pm-1:13 pm

1 stop21h 43m

$545

BillingsSt. Louis

BIL - STL

BILSTL

Billings Logan Intl

Tue 4/8

6:25 am-2:22 pm

1 stop6h 57m

Lambert-St Louis

Tue 4/15

6:59 pm-12:16 am

1 stop6h 17m

$568

MissoulaSt. Louis

MSO - STL

MSOSTL

Missoula Johnson-Bell Field

Thu 12/5

5:40 am-1:30 pm

1 stop6h 50m

Lambert-St Louis

Mon 12/9

6:30 pm-12:44 am

1 stop7h 14m

$574

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/19

Showing 1-10 of 20 results
1
2

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

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Montana 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 Montana to St. Louis

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

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

Currently, September is the cheapest month in which you can book a flight from Montana to St. Louis (average of $308). Flying from Montana to St. Louis in March is currently the most expensive (average of $357). 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 MT to STL?

Find hourly flight availability from Montana to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 20, 2024.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Montana to St. Louis as you normally would.

Rainfall in St. Louis by month

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

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

Temperature in St. Louis by month

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

If weather is an important factor for your trip to St. Louis, 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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated November 20, 2024.
Peruse reviews from past customers who have flown with American Airlines, United Airlines and Delta from Montana to St. Louis to help guide your decision. 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
5,014 reviews

Crew

8.7

Comfort

8.1

Overall

8.1

Entertainment

7.7

Food

7.2

Boarding

8.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Southwest
8.1
Very good
5,014 reviews
Southwest
8.1
Very good
5,014 reviews

Crew

8.7

Comfort

8.1

Overall

8.1

Entertainment

7.7

Food

7.2

Boarding

8.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Alaska Airlines
8.0
Very good
9,461 reviews
Southwest
8.1
Very good
5,014 reviews

Crew

8.7

Comfort

8.1

Overall

8.1

Entertainment

7.7

Food

7.2

Boarding

8.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Delta
8.0
Very good
8,756 reviews
Southwest
8.1
Very good
5,014 reviews

Crew

8.7

Comfort

8.1

Overall

8.1

Entertainment

7.7

Food

7.2

Boarding

8.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

United Airlines
7.4
Good
9,171 reviews
Southwest
8.1
Very good
5,014 reviews

Crew

8.7

Comfort

8.1

Overall

8.1

Entertainment

7.7

Food

7.2

Boarding

8.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
5,014 reviews

Crew

8.7

Comfort

8.1

Overall

8.1

Entertainment

7.7

Food

7.2

Boarding

8.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Related info for your journey

Find useful and relevant information for your journey from Montana to St. Louis. 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 into for flights to St. Louis from Montana?

    Most people fly into Lambert-St Louis (STL) if they book a flight to St. Louis from 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 Montana to St. Louis one-way?

    The cheapest airlines for a one-way flight from Montana to St. Louis are Alaska Airlines ($163), American Airlines ($193), and United Airlines ($238).

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

    The most popular route from Montana to St. Louis is Billings Logan Intl - Lambert-St Louis. You may also consider Missoula Johnson-Bell Field - Lambert-St Louis or Bozeman Gallatin Field - Lambert-St Louis.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Montana to St. Louis 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 Montana to St. Louis?

    Currently, September is the cheapest month in which you can book a flight from Montana to St. Louis (average of $308). Flying from Montana to St. Louis in March is currently the most expensive (average of $357). 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 Montana to St. Louis

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

Top 5 airlines flying from Montana to St. Louis

Discover the top 5 airlines that operate flights from Montana to St. Louis. 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 2,629,791 searches. Data last updated November 20, 2024.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$234Average$386FlexibilityNo cancel feeOn-time63%
DeltaCheapest$236Average$471FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$268Average$580FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$280Average$520FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$295Average$366FlexibilityNo cancel feeOn-time71%
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.
View all available airlines