Flathead High School Auditorium Kalispell, MT Email Address: Flathead High School Auditorium 644 4th Ave W Kalispell, MT Info: 406-257-3241 Region: Flathead Upcoming events at Flathead High School Auditorium Oct 23 Fri U.S. Air Force Concert Band and Singing Sergeants Oct 23 Kalispell Flathead High School Auditorium Events Music Nightlife