$128 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 8/11. 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
Bozeman1 stop$255
Kalispell
Kalispell1 stop$309
Missoula
Missoula1 stop$431
Billings
Billings1 stop$324
Great Falls
Great Falls2 stops$324
Helena
Helena1 stop$358
West Yellowstone
West Yellowstone1 stop$329
Butte
Butte1 stop$324
Bozeman
Bozeman1 stop$255
Kalispell
Kalispell1 stop$309
Missoula
Missoula1 stop$431
Billings
Billings1 stop$324
Great Falls
Great Falls2 stops$324
Helena
Helena1 stop$358
West Yellowstone
West Yellowstone1 stop$329
Butte
Butte1 stop$324

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

Mon, Aug 10 - Tue, Aug 18
American Airlines Logo
8:36 am - 3:25 pm
STL
-
BZN
7h 49m
1 stop
American Airlines Logo
4:15 pm - 11:42 pm
BZN
-
STL
6h 27m
1 stop
$255American Airlines
Sat, Aug 8 - Sat, Aug 15
Delta Logo
5:00 pm - 10:03 pm
STL
-
BZN
6h 03m
1 stop
Delta Logo
6:19 am - 2:47 pm
BZN
-
STL
7h 28m
1 stop
$257Delta
Tue, Aug 18 - Tue, Aug 25
Southwest Logo
3:45 pm - 10:25 pm
STL
-
BZN
7h 40m
2 stops
Southwest Logo
6:55 am - 3:05 pm
BZN
-
STL
7h 10m
1 stop
$260Southwest
Mon, Oct 19 - Wed, Oct 21
Southwest Logo
2:25 pm - 10:25 pm
STL
-
BZN
9h 00m
2 stops
Southwest Logo
8:05 am - 5:40 pm
BZN
-
STL
8h 35m
2 stops
$265Southwest
Fri, Aug 7 - Sat, Aug 15
Delta Logo
7:45 pm - 12:04 am
STL
-
BZN
5h 19m
1 stop
Delta Logo
6:19 am - 2:47 pm
BZN
-
STL
7h 28m
1 stop
$290Delta
Sat, Aug 8 - Wed, Aug 12
American Airlines Logo
12:45 pm - 8:37 pm
STL
-
BZN
8h 52m
1 stop
American Airlines Logo
4:15 pm - 11:42 pm
BZN
-
STL
6h 27m
1 stop
$321American Airlines
Tue, Aug 25 - Mon, Aug 31
United Airlines Logo
4:40 pm - 10:26 pm
STL
-
BTM
6h 46m
1 stop
United Airlines Logo
8:37 am - 4:34 pm
BTM
-
STL
6h 57m
1 stop
$324United Airlines
Sat, Sep 26 - Mon, Oct 5
United Airlines Logo
1:25 pm - 9:04 pm
STL
-
BZN
8h 39m
2 stops
United Airlines Logo
4:24 pm - 10:59 pm
BZN
-
STL
5h 35m
1 stop
$326United Airlines
Sun, Sep 6 - Fri, Sep 11
Alaska Airlines Logo
6:35 am - 4:45 pm
STL
-
GTF
11h 10m
1 stop
Alaska Airlines Logo
5:19 pm - 11:40 pm
GTF
-
STL
29h 21m
2 stops
$410Alaska Airlines
Sat, Oct 31 - Tue, Nov 3
Alaska Airlines Logo
6:00 am - 2:50 pm
STL
-
MSO
9h 50m
1 stop
Alaska Airlines Logo
4:22 pm - 2:15 pm
MSO
-
STL
20h 53m
1 stop
$431Alaska 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.

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 October, when tickets cost $149 (return) on average. On the other hand, the most expensive months are December and July, when the average cost of round-trip tickets is $256 and $246 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 seasonFebruary
Cheapest flight$128
Best time to beat the crowds with an average 10% drop in price.
Flight from St. Louis to Bozeman

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)