There are no baggage storage lockers at Atlanta Airport.
Luggage storage is available at the Wrap-A-Bag outlets in the terminals.
In the North Terminal Wrap-A-Bag is open from 6 am to 7 pm daily. In the South Terminal it is open from 10 am to 11 pm daily.
It costs $4 for a small bag and $5 for a medium sized case. Larger items can also be stored at extra cost.
More information is available on (404) 209-9300.