AA 2777 then DL 1579 at Miami
Los Angeles → Miami → Atlanta
Timetable, Miami time
05:52AA 2777 from Los Angeles at the gate
15:50DL 1579 to Atlanta leaves the gate
9 h 58 apart on the timetable
The last days
AA 2777 and DL 1579 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.