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. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

$128 Cheap Flights from Montana to St. Louis

STL

KAYAK searches hundreds of travel sites at once for deals on flights to St. Louis

...and more

Travelers love KAYAK

41,299,237 searches in the past 7 days on KAYAK

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Filter your dealsChoose cabin class, free Wi-Fi and more.

Cheapest round-trip

$266

Overall average: $418

Alaska Airlines

Sat 1/31Tue 2/3

BZN - STL • 1 stop

Cheapest one-way

$128

Typical prices: $282-$409

Alaska Airlines

Thu 2/26

FCA - STL • 1 stop

Start a new search

KAYAK searches 100s of sites at once to find you the best travel deals.

We hope you love your trip to St. Louis!

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.

Round-trip

One-way

Last minute

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

Sat, Jan 31 - Tue, Feb 3

3:03 pm - 1:54 pm

BZN

STL

21h 51m1 stop

2:50 pm - 11:56 pm

STL

BZN

10h 06m1 stop

$266Alaska Airlines

Sat, Jan 31 - Tue, Feb 3

11:22 am - 1:54 pm

BZN

STL

25h 32m1 stop

2:50 pm - 11:56 pm

STL

BZN

10h 06m1 stop

$276Alaska Airlines

Sat, Jan 31 - Tue, Feb 3

1:30 pm - 11:59 pm

BZN

STL

9h 29m1 stop

11:20 am - 9:33 pm

STL

BZN

11h 13m2 stops

$296United Airlines

Sat, Jan 31 - Tue, Feb 3

10:50 am - 9:13 pm

BZN

STL

9h 23m2 stops

11:20 am - 9:33 pm

STL

BZN

11h 13m2 stops

$301United Airlines

Mon, Jan 5 - Sat, Jan 10

5:45 pm - 11:30 pm

BZN

STL

4h 45m1 stop

3:55 pm - 8:30 pm

STL

BZN

5h 35m1 stop

$320Southwest

Mon, Mar 23 - Fri, Mar 27

6:25 am - 2:38 pm

BIL

STL

7h 13m1 stop

3:25 pm - 8:20 pm

STL

BIL

5h 55m1 stop

$333Delta

Thu, Jan 22 - Sun, Jan 25

1:25 pm - 9:38 pm

MSO

STL

7h 13m1 stop

6:40 am - 12:30 pm

STL

MSO

6h 50m1 stop

$371Delta

Mon, Jan 5 - Sat, Jan 10

5:45 pm - 11:30 pm

BZN

STL

4h 45m1 stop

10:25 am - 8:30 pm

STL

BZN

11h 05m2 stops

$405Southwest

Wed, Jan 28 - Wed, Feb 4

3:35 pm - 6:44 pm

BIL

STL

50h 09m2 stops

3:46 pm - 4:32 pm

STL

BIL

49h 46m2 stops

$444Multiple Airlines

Wed, Jan 28 - Wed, Feb 4

3:35 pm - 6:44 pm

BIL

STL

50h 09m3 stops

3:46 pm - 4:32 pm

STL

BIL

49h 46m2 stops

$477Multiple Airlines

Useful Info

Low season	January
High season	May
Cheapest flight	$128

Best time to beat the crowds with an average 9% drop in price.

Flight from Kalispell 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.

O'Fallon

Wentzville

Farmington

Eureka

Litchfield

Grafton

Shrewsbury

Glencoe

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

Airports

Cabin class

Complete your trip

Direct Flights

Flights to other cities

Origins

Other airports

Return flight deals

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

St. Louis (STL)

STL

$128 Find Cheap Flights from Montana to St. Louis

KAYAK searches hundreds of travel sites at once for deals on flights to St. Louis

Everything you should know

Cheap Flights from Montana to St. Louis

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

Recent one-way flight deals from Montana to St. Louis

Recent last minute flight deals from Montana to St. Louis

Good to know

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.

Traveling to a place near St. Louis?

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

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

Cabin class types available on flights to Montana

Complete your trip to St. Louis with a hotel stay or car rental

Find direct flights for St. Louis

Flights to other popular destinations

Flights from domestic origins to St. Louis

Choose which airport to fly into in St. Louis

Find deals for your return flight