AA 9931 then DL 1328 at Miami
New York LaGuardia → Miami → Atlanta
Timetable, Miami time
09:52AA 9931 from New York LaGuardia at the gate
19:45DL 1328 to Atlanta leaves the gate
9 h 53 apart on the timetable
The last days
AA 9931 and DL 1328 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.