The cheapest times to fly from BZN to STL are

  • April 2nd to May 6th
  • August 13th to November 18th
  • December 24th to February 4th (except the week of January 1st)

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from BZN to STL is late September. Prices can be as high as $760 for Sunday flights during early to mid March, or as low as $268 for Tuesday flights around late September.


When to Fly to St. Louis

Flying from Bozeman, MT (BZN) to St. Louis, MO (STL) will usually cost between $273 to $527 per person if booking more than four weeks in advance. On average the very cheapest time to fly is late September with an average ticket price of $286. Due to high demand the most expensive time to fly is early to mid March, with an average price of $529. Planning your trip to low-cost times can easily save you $243 on economy flights and even more on first-class flights. Generally, any price below $323 can be considered a good price for a round-trip BZN to STL flight.

See below for a graph of average weekly prices for the BZN to STL route. All prices are for round-trip tickets in USD.

BZN to STL Flight Prices

Compared to other flights, the BZN to STL flight is much cheaper than the average and costs much less than the average flight leaving from Bozeman. The average price per mile (for a direct flight) is $0.17, which is below average.


Flight Prices by Day of the Week

Tuesday is usually the cheapest day to depart and return on this flight. Sundays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $110 (27%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $293. Return trip prices are from the STL to BZN flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from BZN to STL can generally find a 1-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 3 hour 5 minutes may not be realistic.


Flight Questions Answered

Still have questions about flying from BZN to STL? We’ve got answers.

Which airlines fly this route?

You can find 5 major airlines flying this route most often: Alaska, American, Delta, Frontier, United, and potentially more during busy seasons.

How far away is it from St Louis Lambert International Airport to Bozeman Yellowstone International Airport?

The distance between the two airports is roughly 1164 miles or 1873 kilometers.

How long does it take to fly from BZN to STL?

The real-world flight time for a nonstop BZN to STL flight is about 3 hour 5 minutes.

How many flights go between Bozeman, MT and St. Louis, MO?

It depends on the day of the week and the date, but a typical day might have around 71 available flights from BZN to STL.


Airport Location Info


Departing Airport

Origination code BZN
Origination airport name Bozeman Yellowstone International Airport
City Bozeman, MT
Country the United States
Latitude 45.8
Longitude -111.2

Return Airport

Destination code STL
Destination airport name St Louis Lambert International Airport
City St. Louis, MO
Country the United States
Latitude 38.7
Longitude -90.4


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.