High Quality Content by WIKIPEDIA articles! Mather Air Force Base (Mather AFB) is a closed United States Air Force Base located 12 miles east of Sacramento at Rancho Cordova, California on the south side of U.S. Route 50. Mather AFB was closed on October 1, 1993 as a result of the Base Realignment and Closure Act (BRAC) and reopened in 1995 as Sacramento Mather Airport.