Ridgeline Aviation, LLC

Ridgeline Aviation, LLC is a charter operator, flight school and aircraft services company based at Bozeman Yellowstone International Airport (KBZN) in Belgrade, Montana, with a second location at Billings Logan International Airport (KBIL). It was established in 2017 under Grayson Sperry.

Flight training

AOPA named Ridgeline the best flight school in the Northwest Mountain Region in its 2021 to 2023 flight training surveys. Training runs from private pilot to MEI, in partnership with Purdue University. Programs include:

• Private pilot licence, instrument rating and high-performance endorsement
• Mountain flying courses
• G6 and G7 Cirrus SR22T transition courses with in-house CSIPs

The school rents Cessna 172s at both locations. Students can also train in a Piper PA-18 Super Cub, a Diamond DA42 Twin Star and a Cirrus SR22.

Services

Charter flights use a 2021 Pilatus PC-12 NGX and a Super Cub for backcountry trips. The company has two PC-24 type-rated pilots and four PC-12 NG/NGX trained pilots, with annual training at FlightSafety. Ridgeline also offers aircraft management with single point billing, maintenance through its own mechanics, storage, winterization, aircraft acquisition and sales, and contract crews for PC-12, TBM 850 and PA-46 aircraft.

Cirrus services

Cirrus Aircraft Authorized Service Center, Cirrus Training Center.

• Maintenance for Cirrus SR20, SR22 and SR22T aircraft
• Garmin avionics service
• Avidyne avionics service
• Ice protection system maintenance
• Air conditioning service
• Cirrus parts
• Aircraft pickup and delivery

Source: Cirrus Aircraft service center locator (October 2026).