The University of Georgia is in Athens, approximately 75 miles northeast of Atlanta. To get to Athens, fly to the Hartsfield-Jackson Atlanta International Airport (ATL).
You can then get a shuttle to Athens through Groome Transportation, which will take you directly to Hilton Garden Inn or Holiday Inn, where most of the Algebraic Geometry Symposium participants are staying. Check out Groome Transportation’s schedule here. Round-trip shuttle rides are currently $72, and reservations are strongly recommended.