Korean Air at Hartsfield Airport operates at South and International Terminals.
Passengers can check in online from 24 hours to one hour before the flight. After the online check-in, if a passenger has a piece of luggage to drop-off, they should go the desk to do so. Passengers without luggage, who have a boarding pass, can proceed to the concourse directly.
Phone number of Korean Air: (800) 438-5000
Official Website: www.koreanair.com