STL - MSO

$178 Find Cheap Flights from St. Louis to Missoula - Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$379
Typical prices: $397-$692
Delta
Sun 4/1Sun 4/8
STL - MSO • 1 stop
Cheapest one-way
$178
Typical prices: $214-$280
Multiple Airlines
Tue 1/9
STL - MSO • 3 stops
Nonstop flights
There are currently no direct flights between St. Louis and Missoula. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
Cheapest • 48% price drop
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Cheapest • Avg $542 (round-trip)
Shortest trip • 5h 41m (one-way)
Insights
Insights
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Flight Deals

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

 
Discover the best prices for you by selecting your travel dates on KAYAK.

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

Thu, Apr 1 - Thu, Apr 8
Delta Logo
6:59 pm - 12:31 amSTL  Lambert-St Louis-MSO Missoula Johnson-Bell Field
6h 32m1 stop Salt Lake City
Delta Logo
8:00 am - 2:31 pmMSO  Missoula Johnson-Bell Field-STL Lambert-St Louis
5h 31m1 stop Minneapolis St Paul
$379Delta
Fri, Jan 15 - Fri, Jan 22
Delta Logo
7:05 am - 12:34 pmSTL  Lambert-St Louis-MSO Missoula Johnson-Bell Field
6h 29m1 stop Salt Lake City
Delta Logo
1:33 pm - 9:42 pmMSO  Missoula Johnson-Bell Field-STL Lambert-St Louis
7h 09m1 stop Salt Lake City
$379Delta
Fri, Jan 15 - Fri, Jan 22
Delta Logo
7:05 am - 12:34 pmSTL  Lambert-St Louis-MSO Missoula Johnson-Bell Field
6h 29m1 stop Salt Lake City
Delta Logo
5:13 am - 5:54 pmMSO  Missoula Johnson-Bell Field-STL Lambert-St Louis
11h 41m2 stops Salt Lake City Atlanta Hartsfield-Jackson
$384Delta
Thu, Feb 18 - Sun, Feb 21
Delta Logo
10:45 am - 8:12 pmSTL  Lambert-St Louis-MSO Missoula Johnson-Bell Field
10h 27m2 stops Detroit Metropolitan Wayne County Minneapolis St Paul
Delta Logo
5:40 am - 1:23 pmMSO  Missoula Johnson-Bell Field-STL Lambert-St Louis
6h 43m1 stop Salt Lake City
$384Delta
Fri, Nov 20 - Sun, Nov 22
United Airlines Logo
8:50 am - 1:31 pmSTL  Lambert-St Louis-MSO Missoula Johnson-Bell Field
5h 41m1 stop Denver Intl
United Airlines Logo
2:37 pm - 9:01 pmMSO  Missoula Johnson-Bell Field-STL Lambert-St Louis
5h 24m1 stop Denver Intl
$449United Airlines
Fri, Jan 15 - Fri, Jan 22
American Airlines Logo
5:42 am - 12:44 pmSTL  Lambert-St Louis-MSO Missoula Johnson-Bell Field
8h 02m1 stop Chicago O'Hare Intl
American Airlines Logo
7:42 am - 2:55 pmMSO  Missoula Johnson-Bell Field-STL Lambert-St Louis
6h 13m1 stop Dallas/Fort Worth
$453American Airlines
Fri, Nov 20 - Sun, Nov 22
United Airlines Logo
8:50 am - 1:31 pmSTL  Lambert-St Louis-MSO Missoula Johnson-Bell Field
5h 41m1 stop Denver Intl
United Airlines Logo
6:15 am - 3:43 pmMSO  Missoula Johnson-Bell Field-STL Lambert-St Louis
8h 28m2 stops Denver Intl Chicago O'Hare Intl
$454United Airlines
Fri, Nov 13 - Tue, Nov 17
United Airlines Logo
9:40 am - 9:47 pmSTL  Lambert-St Louis-MSO Missoula Johnson-Bell Field
13h 07m2 stops Chicago O'Hare Intl Denver Intl
United Airlines Logo
2:37 pm - 8:59 pmMSO  Missoula Johnson-Bell Field-STL Lambert-St Louis
5h 22m1 stop Denver Intl
$454United Airlines
Fri, Jan 15 - Fri, Jan 22
American Airlines Logo
5:42 am - 12:44 pmSTL  Lambert-St Louis-MSO Missoula Johnson-Bell Field
8h 02m1 stop Chicago O'Hare Intl
American Airlines Logo
7:42 am - 10:34 pmMSO  Missoula Johnson-Bell Field-STL Lambert-St Louis
13h 52m2 stops Dallas/Fort Worth Chicago O'Hare Intl
$458American Airlines
Fri, Jan 15 - Fri, Jan 22
American Airlines Logo
7:21 am - 8:12 pmSTL  Lambert-St Louis-MSO Missoula Johnson-Bell Field
13h 51m2 stops Chicago O'Hare Intl Dallas/Fort Worth
American Airlines Logo
7:42 am - 8:32 pmMSO  Missoula Johnson-Bell Field-STL Lambert-St Louis
11h 50m2 stops Dallas/Fort Worth Chicago O'Hare Intl
$464American Airlines
Booking Insights

Price, demand and travel trends for St. Louis to Missoula flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

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

Round-trip flights from St. Louis to Missoula typically range from $397 to $692. The lowest price found in the past 5 days was $379, on Delta.

What's the cheapest day of the week to fly from St. Louis to Missoula?

Based on deals KAYAK users found in the last 12 months, Tuesday is the cheapest day of the week to fly from St. Louis to Missoula. It’s 15% cheaper than the average day, while Friday is the most expensive, with prices 35% higher.

Key details for St. Louis to Missoula flights

Low season

January

Cheapest flight

$178
Beat the crowds with an average 85% drop in travelers.
The most popular month to fly with an average 136% increase in travelers.
One-way flight from St. Louis to Missoula

When to book flights from St. Louis to Missoula

Are your dates flexible? Find out the best times to travel from St. Louis to Missoula based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your St. Louis to Missoula flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from St. Louis to Missoula?

    Only Economy Class is available on flights from St. Louis to Missoula.

  • How long is a flight from St. Louis to Missoula?

    A nonstop flight from St. Louis to Missoula takes 00m, covering 1,320 miles.

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

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

  • How much should I expect to pay for a St. Louis to Missoula flight?

    Round-trip flights from St. Louis to Missoula range from $397 to $692, with an average of $494 over the past 12 months. Anything below $397 counts as a good deal.

  • Have flight prices from St. Louis to Missoula changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $379 to $1,081. That means the highest observed fare was about 3x higher than the lowest one.

  • How are flight prices from St. Louis to Missoula looking right now?

    One-way fares from St. Louis to Missoula are currently higher than usual. Average one-way flight prices are about $311, which is 35% above the typical average for this route.

  • What car rental options are available at Missoula Johnson-Bell Field Airport (MSO)?

    Missoula Johnson-Bell Field Airport (MSO) hosts 5 major car rental companies, with daily rates averaging $81 for economy cars. Top options include:

    • Dollar
    • Budget
    • Thrifty
    • Hertz
    • Avis

  • Which airports can I use when flying from St. Louis to Missoula?

    Flights from St. Louis to Missoula usually depart from Lambert-St Louis (STL) and arrive at Missoula Johnson-Bell Field (MSO).

  • Which airports do connecting flights from St. Louis to Missoula pass through?

    One-stop flights from St. Louis to Missoula most commonly connect through:

    • Denver Intl (DEN) - 50% of one-stop connections
    • Salt Lake City (SLC) - 37% of one-stop connections
    • Dallas/Fort Worth (DFW) - 7% of one-stop connections
    • Seattle/Tacoma Intl (SEA) - 6% of one-stop connections

  • Can I save money by using flexible dates for flights from St. Louis to Missoula?

    Yes. Flexible dates can save you up to 37% on flights from St. Louis to Missoula. Tuesday is the cheapest departure day at $423 round-trip on average, while Friday is the most expensive at $667, a difference of $244.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How much time can I save by choosing a different layover airport from St. Louis to Missoula?

    Flying via Denver Intl (DEN) gives the shortest average 1-stop total travel time at 5h 30m, compared with 5h 41m via Salt Lake City (SLC) and 7h 38m via Dallas/Fort Worth (DFW).

  • What is the time difference between St. Louis and Missoula?

    Missoula is 1 hour behind St. Louis (Mountain Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

Your guide to booking St. Louis to Missoula flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Tuesday departure and avoid flying on Friday. On this route, Tuesday flights average $423, about $244 less than Friday fares (37% savings) based on the last 12 months.
  • If you can choose when to travel, plan your St. Louis to Missoula trip for March. Fares historically average $257 round-trip in that month - typically $535 less than the most expensive month, which is December (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Missoula Johnson-Bell Field Airport.

    • Fairfield Inn & Suites by Marriott Missoula
    • StoneCreek Lodge

More options for your flight from St. Louis to Missoula

Complete your trip to Missoula with a hotel stay or car rental