If you guessed Bozeman, you’re correct!
Bozeman remains the state’s busiest airport — a ranking it has held now for several years, according to the Montana Department of Transportation.

Missoula, which often held the third spot, moved into the No. 2 position as Billings fell to fourth.

According to the Montana Department of Transportation, more than 1.1 million passengers boarded a commercial airline in Bozeman, making it the state’s busiest airport.
It’s also served by more carriers than any other Montana airport including Jet Blue and Southwest.
Missoula saw 425,000 passengers board a plane in 2022, according to MDT, making it the state’s second busiest airport. Kalispell moved into the third spot and Billings slid to fourth with less than 385,000 enplanements.
Bozeman also held not only the top spot for the number of passengers departing but also arriving, with more than 1.1 million.
Missoula was second with more than 419,000 arriving passengers. Kalispell and Billings rounded out the top four, according to the MDT.