DL 8838 then AA 2891 at Atlanta
Memphis → Atlanta → Miami
Timetable, Atlanta time
07:28DL 8838 from Memphis at the gate
10:37AA 2891 to Miami leaves the gate
3 h 09 apart on the timetable
The last days
DL 8838 and AA 2891 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.