Its eastern terminus is at an interchange with Interstate 85 ( I - 85 ) west of the Hartsfield -- Jackson Atlanta International Airport .
Here , US 278 enters Alabama , concurrent with the unsigned state highway SR 74 .
Alabama 's eastern terminus is at an interchange with Interstate 85 ( I - 85 ) west of the Hartsfield -- Jackson Atlanta International Airport .
Here , US 278 enters Alabama , concurrent with the unsigned state highway SR 74 .