STL

$151 Find Cheap Flights from Montana to St. Louis - 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 to St. Louis departing on 8/23. 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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Flight Deals

Cheap Flights from Montana to St. Louis

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Montana to St. Louis 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 Montana to St. Louis

Fri, Aug 14 - Sat, Aug 15
Delta Logo
6:09 pm - 12:41 am
FCA
-
STL
5h 32m
1 stop
Delta Logo
3:29 pm - 8:15 pm
STL
-
FCA
5h 46m
1 stop
$319Delta
Fri, Aug 14 - Sun, Aug 16
Delta Logo
6:09 pm - 12:41 am
FCA
-
STL
5h 32m
1 stop
Delta Logo
5:34 pm - 11:56 pm
STL
-
FCA
7h 22m
1 stop
$319Delta
Thu, Aug 20 - Sun, Aug 23
United Airlines Logo
5:04 pm - 11:31 pm
FCA
-
STL
5h 27m
1 stop
United Airlines Logo
8:42 am - 3:21 pm
STL
-
FCA
7h 39m
1 stop
$319United Airlines
Tue, Aug 25 - Tue, Sep 1
American Airlines Logo
4:50 pm - 12:14 am
FCA
-
STL
6h 24m
1 stop
American Airlines Logo
9:32 am - 4:10 pm
STL
-
FCA
7h 38m
1 stop
$319American Airlines
Fri, Oct 2 - Sun, Oct 4
American Airlines Logo
3:26 pm - 11:43 pm
FCA
-
STL
7h 17m
1 stop
American Airlines Logo
8:30 am - 2:33 pm
STL
-
FCA
7h 03m
1 stop
$319American Airlines
Fri, Aug 14 - Sat, Aug 15
Delta Logo
6:09 pm - 12:41 am
FCA
-
STL
5h 32m
1 stop
Delta Logo
3:29 pm - 8:15 pm
STL
-
FCA
5h 46m
1 stop
$319Delta
Thu, Oct 29 - Mon, Nov 2
United Airlines Logo
10:15 am - 4:57 pm
BTM
-
STL
5h 42m
1 stop
United Airlines Logo
4:39 pm - 10:43 pm
STL
-
BTM
7h 04m
1 stop
$334United Airlines
Thu, Sep 10 - Wed, Sep 16
United Airlines Logo
5:04 pm - 11:31 pm
FCA
-
STL
5h 27m
1 stop
United Airlines Logo
8:35 am - 3:21 pm
STL
-
FCA
7h 46m
1 stop
$334United Airlines
Thu, Oct 29 - Mon, Nov 2
Southwest Logo
5:50 am - 1:45 pm
BZN
-
STL
6h 55m
1 stop
Southwest Logo
4:50 pm - 10:45 pm
STL
-
BZN
6h 55m
1 stop
$355Southwest
Thu, Oct 29 - Mon, Nov 2
Southwest Logo
4:15 pm - 9:45 pm
BZN
-
STL
4h 30m
1 stop
Southwest Logo
12:30 pm - 9:50 pm
STL
-
BZN
10h 20m
2 stops
$360Southwest
Useful Info

Good to know

Low season

January

Cheapest flight

$151
Best time to beat the crowds with an average 5% drop in price.
Most popular time to fly with an average 11% increase in price.
Flight from Bozeman to St. Louis

FAQs for booking flights from Montana to St. Louis

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

    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 Montana to St. Louis.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis from 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 Montana to St. Louis?

    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 to St. Louis with an airline and back to Montana with another airline.

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

    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 to St. Louis from 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 to St. Louis

Information on the airport you'll fly into in St. Louis

St. Louis (STL)