MSO - STL

$221 Find Cheap Flights from Missoula 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 from Missoula to St. Louis departing on 9/23. 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

Save 20% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Everything you should know

Cheapest round-trip
$447
Typical prices: $434-$710
American Airlines
Fri 11/13Sun 11/15
MSO - STL • 1 stop
Cheapest one-way
$221
Delta
Wed 9/23
MSO - STL • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Missoula and St. Louis. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Salt Lake City (SLC)
Cheapest • Avg $399 (round-trip)
Minneapolis (MSP)
Shortest trip • 5h 35m (one-way)
Insights
Insights
Insights
Insights
When to travel
October
Cheapest • 100% price drop
November
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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
Booking Insights
Flight Deals

Cheap Flights from Missoula to St. Louis (MSO-STL)

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

Fri, Nov 13 - Sun, Nov 15
American Airlines Logo
1:10 pm - 10:58 am
MSO
-
STL
20h 48m
1 stop
American Airlines Logo
5:00 am - 12:40 pm
STL
-
MSO
8h 40m
1 stop
$447American Airlines
Fri, Sep 4 - Sun, Sep 6
American Airlines Logo
1:18 pm - 8:24 am
MSO
-
STL
18h 06m
1 stop
American Airlines Logo
6:36 am - 12:35 pm
STL
-
MSO
6h 59m
1 stop
$447American Airlines
Sat, Sep 5 - Sun, Sep 6
American Airlines Logo
1:18 pm - 11:58 pm
MSO
-
STL
9h 40m
1 stop
American Airlines Logo
6:36 am - 12:35 pm
STL
-
MSO
6h 59m
1 stop
$447American Airlines
Thu, Oct 15 - Mon, Oct 19
Delta Logo
6:24 pm - 12:34 am
MSO
-
STL
5h 10m
1 stop
Delta Logo
7:00 pm - 12:21 am
STL
-
MSO
6h 21m
1 stop
$451Delta
Sat, Sep 5 - Mon, Sep 7
Delta Logo
7:13 am - 1:38 pm
MSO
-
STL
5h 25m
1 stop
Delta Logo
5:34 pm - 11:47 pm
STL
-
MSO
7h 13m
1 stop
$455Delta
Tue, Oct 20 - Fri, Oct 23
Delta Logo
6:25 pm - 12:44 am
MSO
-
STL
5h 19m
1 stop
Delta Logo
7:45 am - 12:34 pm
STL
-
MSO
5h 49m
1 stop
$455Delta
Thu, Sep 24 - Sat, Sep 26
American Airlines Logo
1:27 pm - 9:57 pm
MSO
-
STL
7h 30m
1 stop
American Airlines Logo
5:43 am - 12:11 pm
STL
-
MSO
7h 28m
1 stop
$455American Airlines
Fri, Sep 4 - Sun, Sep 6
United Airlines Logo
5:24 pm - 11:40 pm
MSO
-
STL
5h 16m
1 stop
United Airlines Logo
12:59 pm - 9:31 pm
STL
-
MSO
9h 32m
2 stops
$474United Airlines
Sat, Sep 5 - Sun, Sep 6
United Airlines Logo
2:40 pm - 8:46 pm
MSO
-
STL
5h 06m
1 stop
United Airlines Logo
8:00 am - 4:20 pm
STL
-
MSO
9h 20m
2 stops
$474United Airlines
Sat, Sep 12 - Sun, Sep 13
United Airlines Logo
6:15 am - 12:40 pm
MSO
-
STL
5h 25m
1 stop
United Airlines Logo
4:40 pm - 9:34 pm
STL
-
MSO
5h 54m
1 stop
$482United Airlines
Booking Insights

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

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

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

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

Flight prices are below average for this route right now.

Flights to St. Louis from Missoula usually cost between $550 and $701 in November.
The lowest price found in the past 5 days was $447 on American Airlines (Nov 13-Nov 15).

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Missoula to St. Louis, 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 Missoula to St. Louis is October, where tickets cost $0 (return) on average. On the other hand, the most expensive months are September and July, where the average cost of round-trip tickets is $732 and $703 respectively.

Find deals

Good to know

Low season

April

Cheapest flight

$221
Best time to beat the crowds with an average 39% drop in price.
Most popular time to fly with an average 1% increase in price.
Flight from Missoula to St. Louis

When to book flights from Missoula to St. Louis

Are your dates flexible? Find out the best times to travel from Missoula to St. Louis based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Missoula to St. Louis

  • What is the cheapest flight from Missoula to St. Louis?

    In the last 5 days, the lowest price for a flight from Missoula to St. Louis was $221 for a one-way ticket and $447 for a round-trip.

  • Do I need a passport to fly between Missoula and St. Louis?

    No, a passport isn't needed to fly from Missoula to St. Louis. However, local authorities might ask for an official ID.

  • Which airports will I be using when flying from Missoula to St. Louis?

    When flying out of Missoula you will be using Missoula Johnson-Bell Field. You will be landing at St. Louis, also known as Lambert-St Louis.

  • Which aircraft models fly most regularly from Missoula to St. Louis?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Missoula to St. Louis?

    Star Alliance, and SkyTeam are the airline alliances operating flights between Missoula and St. Louis, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Missoula to St. Louis, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Missoula to St. Louis are Delta and United Airlines. With an average price for the route of $390 and an overall rating of 7.8, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $499 and an overall rating of 7.4.

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

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis from Missoula 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 Missoula 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 Missoula with another airline. Booking your flights between Missoula and STL can sometimes prove cheaper using this method.

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

Information on your arrival and departure airports

Missoula (MSO)
St. Louis (STL)