Flagstaff Academy Share: Schools/Educational Resources Flagstaff Academy Visit Website 2040 Miller Drive Longmont, CO 80501 3036517900 About Map About Since our founding in 2005, Flagstaff Academy has built an exceptional educational environment which values developing the whole child through an award-winning Pre-K to 8th Grade Core Knowledge academ What's Nearby? Distance: 5 10 15 20 25 50 mi.