Cheap Flights from St Louis (STL) to Bozeman Yellowstone International (BZN)

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Find the cheapest month to fly from St Louis to Bozeman Yellowstone International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like St Louis to Bozeman Yellowstone International flights are currently cheapest in July.

St Louis to Bozeman Yellowstone International: Alternative routes

Compare routes from St Louis to Bozeman below. You may find an airport to fly into that's cheaper, faster, or easier than Bozeman Yellowstone International.

St Louis to Bozeman: Flight information

The things to know before you go.
Cheapest flight found$128
Cheapest month to flyJuly

Finding cheap flights from St Louis to Bozeman Yellowstone International: Frequently asked questions

The best price we found for a round-trip flight from St Louis to Bozeman Yellowstone International is $214. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from St Louis to Bozeman Yellowstone International. But we found flights with one or more stops from $214.
There are no flights flying from St Louis to Bozeman Yellowstone International, as of May 2025.
The cheapest month to fly from St Louis to Bozeman Yellowstone International is usually May 2025.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from St Louis Airport to Bozeman Yellowstone International Airport on Tuesday, July 8, 2025.
No airlines currently offer direct flights between St Louis Airport and Bozeman Yellowstone International Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Bozeman Yellowstone International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to Bozeman is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, United offers the cheapest flight tickets to Bozeman Yellowstone International.

Flying from Lambert-St. Louis International Airport (STL) to Bozeman Yellowstone International Airport (BZN): what you need to know

  • Leave plenty of time to make your STL to BZN flight. It's generally best to arrive two hours before international departures and an hour ahead for domestic flights.

  • Be prepared for longer lines in popular months like July. Arriving up to four hours ahead of international flights and two hours for a domestic departure is a smart move.

  • If you'd like to explore another city along the way, simply deselect 'Direct flights only' when searching for your ticket from Lambert-St. Louis International Airport to Bozeman Yellowstone International Airport. These are the top stopovers between STL and BZN:

    • Minneapolis-St. Paul International Airport

    • Denver International Airport

    • O'Hare International Airport

How to find the cheapest flights from Lambert-St. Louis International Airport (STL) to Bozeman Yellowstone International Airport (BZN)

  • $128 is currently the best price for a one-way Lambert-St. Louis International Airport to Bozeman Yellowstone International Airport flight. A return flight starts at $214. These fares can change depending on availability.

  • To find cheap tickets from STL to BZN, book ahead. Airlines tend to offer their most competitively priced fares when flights are first made available.

  • If you're flexible with your travel plans, try using the 'Whole month' tool. It'll show you the cheapest price in every month when searching for a flight from Lambert-St. Louis International Airport to Bozeman Yellowstone International Airport.

  • There's no need to check every day to see if fares have dropped when you set up a Price Alert. We'll send you an update as soon as there's a new deal on cheap flights from STL to BZN.

  • Discover the right flight for you by using the filters. To see the 'Best,' 'Fastest' or 'Cheapest' flights from Lambert-St. Louis International Airport to Bozeman Yellowstone International Airport, use the 'Sort by' function. You can also filter results by departure and arrival times, airline, and number of stops.

Handy information about Lambert-St. Louis International Airport (STL)

Arriving at Bozeman Yellowstone International Airport (BZN)

Getting from Bozeman Yellowstone International Airport (BZN) to central Bozeman

  • The street address for BZN is 850 Gallatin Field Rd.

  • Bozeman Yellowstone International Airport is approximately 11 miles from the center of Bozeman. The drive time takes around 20 minutes.

  • It takes around 1 hour 30 minutes if you're using public transport.

When to fly to Bozeman Yellowstone International Airport (BZN)

  • It's time to plan your trip dates for your flight from Lambert-St. Louis International Airport to Bozeman Yellowstone International Airport. July is the most popular month to visit Bozeman. If you like a quieter vibe, go in May.

  • Lock in your flight from Lambert-St. Louis International Airport to Bozeman Yellowstone International Airport for July if you'd like to visit Bozeman during its warmest month. Expect temperatures of between 48ºF and 86ºF.

  • If you like cooler conditions, look for a cheap ticket from STL to BZN in December. Average temperatures are between -4ºF and 34ºF then.

Explore more of United States

  • You've visited Bozeman, now it's time to discover more of United States. Travel around 290 miles south-west to Boise to check off its popular sights. From Idaho State Capitol Building to Old Idaho Penitentiary and Zoo Boise, you'll have a packed itinerary ahead.

  • Billings is another favorite destination in United States and is around 120 miles east of Bozeman. No trip is complete without dropping by Pictograph Cave State Park, Moss Mansion and Yellowstone Art Museum.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.