AA 1204 then DL 796 at O'Hare
Miami → Chicago → Atlanta
Timetable, Chicago time
08:00AA 1204 from Miami at the gate
15:00DL 796 to Atlanta leaves the gate
7 h apart on the timetable
Today
From the airport’s board at 02:17 Chicago time
08:00AA 1204 is cancelled
15:00DL 796 due to leave, no estimate yet
The last days
AA 1204 and DL 796 weren’t both flown 15 min to 12 h apart in the last 21 days.
Statistics from past flights, not live flight information. Always check times and your connection with your airline, and don’t base travel or booking decisions on these numbers.