The best city between Atlanta, GA and Orlando, FL to meet might be Valdosta, Georgia which is about seven miles from the exact midpoint.
Halfway city between Atlanta and Charleston SC
Murfreesboro, TN is halfway between Lyndon KS and Orlando FL
Chicago, Illinois and Atlanta, Georgia are 719 miles apart. A city located halfway between them would be Bonnieville in Kentucky.
Memphis, TN
Kansas City, Missouri.
McDonough, GA
Dublin, GA is halfway between Savannah and Atlanta.
Memphis, TN
Savannah, Georgia.
Byron, GA
Blumpkin City, FL
Atlanta