sentences:  The city also has a general aviation airport, the Auburn University Regional Airport (AUO) (formerly Auburn-Opelika Robert G. Pitts Airport), which is east of downtown Auburn.The major commercial airports closest to Auburn are the Hartsfield–Jackson Atlanta International Airport (ATL) (Atlanta) and the Birmingham–Shuttlesworth International Airport (BHM) (Birmingham).Each of these airports is within 2 hours driving distance from Auburn and together they offer air service to most of the world's major airports.