Hartsfied-Jackson International Airport is seeking approval of a proposed 20-year lease deal with Atlanta-based Delta Air Lines that it says ties into a planned expansion including construction of Concourse G and new parking garages.

If the Atlanta City Council approves the Delta lease deal, the Atlanta airport plans to immediately embark on work for Concourse G, including planning. The project to build another international concourse is expected to cost $983 million and take until 2023 to complete.