$160 Find Cheap Flights from St. Louis to Montana - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Montana departing on 9/8. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Cheap Flights from St. Louis to Montana

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Bozeman
Bozeman2 stops$366
Kalispell
Kalispell1 stop$319
Missoula
Missoula1 stop$441
Billings
Billings1 stop$329
Great Falls
Great Falls1 stop$328
Helena
Helena1 stop$398
West Yellowstone
West Yellowstone2 stops$494
Butte
Butte2 stops$344
Bozeman
Bozeman2 stops$366
Kalispell
Kalispell1 stop$319
Missoula
Missoula1 stop$441
Billings
Billings1 stop$329
Great Falls
Great Falls1 stop$328
Helena
Helena1 stop$398
West Yellowstone
West Yellowstone2 stops$494
Butte
Butte2 stops$344

Book Cheap St. Louis to Montana Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Montana that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from St. Louis to Montana

Sat, Sep 5 - Fri, Sep 11
United Airlines Logo
4:40 pm - 10:45 pmSTL  Lambert-St Louis-COD Cody E.E. Faust
7h 05m1 stop Denver Intl
United Airlines Logo
5:53 pm - 11:40 pmCOD  Cody E.E. Faust-STL Lambert-St Louis
4h 47m1 stop Denver Intl
$318United Airlines
Sat, Sep 5 - Sat, Sep 12
United Airlines Logo
4:40 pm - 10:45 pmSTL  Lambert-St Louis-COD Cody E.E. Faust
7h 05m1 stop Denver Intl
United Airlines Logo
5:00 am - 12:40 pmCOD  Cody E.E. Faust-STL Lambert-St Louis
6h 40m1 stop Denver Intl
$318United Airlines
Mon, Aug 24 - Fri, Aug 28
American Airlines Logo
6:00 am - 12:42 pmSTL  Lambert-St Louis-FCA Kalispell Glacier Park
7h 42m1 stop Chicago O'Hare Intl
American Airlines Logo
3:24 pm - 11:42 pmFCA  Kalispell Glacier Park-STL Lambert-St Louis
7h 18m1 stop Dallas/Fort Worth
$319American Airlines
Thu, Sep 17 - Wed, Sep 23
American Airlines Logo
7:00 am - 2:33 pmSTL  Lambert-St Louis-FCA Kalispell Glacier Park
8h 33m1 stop Dallas/Fort Worth
American Airlines Logo
3:26 pm - 11:43 pmFCA  Kalispell Glacier Park-STL Lambert-St Louis
7h 17m1 stop Dallas/Fort Worth
$319American Airlines
Sat, Oct 24 - Wed, Oct 28
Alaska Airlines Logo
6:02 am - 12:23 pmSTL  Lambert-St Louis-FCA Kalispell Glacier Park
7h 21m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
2:03 pm - 11:59 pmFCA  Kalispell Glacier Park-STL Lambert-St Louis
8h 56m1 stop Seattle/Tacoma Intl
$319Alaska Airlines
Sat, Oct 3 - Wed, Oct 7
Delta Logo
5:00 pm - 10:41 pmSTL  Lambert-St Louis-BIL Billings Logan Intl
6h 41m1 stop Salt Lake City
Delta Logo
6:01 am - 2:45 pmBIL  Billings Logan Intl-STL Lambert-St Louis
7h 44m1 stop Minneapolis St Paul
$329Delta
Sat, Sep 26 - Tue, Sep 29
Delta Logo
5:00 pm - 10:41 pmSTL  Lambert-St Louis-BIL Billings Logan Intl
6h 41m1 stop Salt Lake City
Delta Logo
6:33 pm - 12:44 amBIL  Billings Logan Intl-STL Lambert-St Louis
5h 11m1 stop Salt Lake City
$329Delta
Sun, Oct 18 - Sun, Oct 25
Multiple Airlines Logo
2:00 pm - 4:54 pmSTL  Lambert-St Louis-BZN Bozeman Gallatin Field
27h 54m2 stops Jonesboro Nashville Intl
Multiple Airlines Logo
12:36 pm - 1:17 amBZN  Bozeman Gallatin Field-STL Lambert-St Louis
11h 41m1 stop Las Vegas Harry Reid Intl
$366Multiple Airlines
Mon, Sep 7 - Fri, Sep 11
Alaska Airlines Logo
7:36 pm - 9:54 amSTL  Lambert-St Louis-BZN Bozeman Gallatin Field
15h 18m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
2:21 pm - 11:59 pmBZN  Bozeman Gallatin Field-STL Lambert-St Louis
8h 38m1 stop Seattle/Tacoma Intl
$369Alaska Airlines
Thu, Sep 17 - Mon, Sep 21
Multiple Airlines Logo
10:20 am - 7:43 pmSTL  Lambert-St Louis-FCA Kalispell Glacier Park
34h 23m2 stops Dallas/Fort Worth Las Vegas Harry Reid Intl
Multiple Airlines Logo
8:46 pm - 11:32 amFCA  Kalispell Glacier Park-STL Lambert-St Louis
13h 46m1 stop Las Vegas Harry Reid Intl
$391Multiple Airlines
Booking Insights

KAYAK's insights & trends for St. Louis to Montana flights

Get data-powered insights and trends into flights from St. Louis to Montana to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from St. Louis to Montana?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from St. Louis to Montana departing in October.

Flight prices are typical for this route right now.

Flights to Montana from St. Louis usually cost between $339 and $458 in October.
The lowest price found in the past 5 days was $366 on Multiple Airlines (Oct 18-Oct 25).

What is the cheapest month to fly from St. Louis to Montana?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to Montana, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from St. Louis to Montana is January, when tickets cost $326 (return) on average. On the other hand, the most expensive months are July and August, when the average cost of round-trip tickets is $654 and $467 respectively.

How far in advance should I book a flight from St. Louis to Montana?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from St. Louis to Montana, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from St. Louis to Montana, you should book around 2 weeks before departure, which saves you about 12% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 25 weeks before departure.

Find deals

Good to know

Low season

February

Cheapest flight

$160
Best time to beat the crowds with an average 7% drop in price.
Most popular time to fly with an average 1% increase in price.
Flight from St. Louis to Kalispell

FAQs - booking Montana flights

  • How does KAYAK find such low prices on flights from St. Louis to Montana?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to Montana.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Montana?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from St. Louis to Montana is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from St. Louis to Montana?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from St. Louis to Montana with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Montana?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from St. Louis to Montana up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from St. Louis to Montana

Information on your arrival and departure airports

St. Louis (STL)