AA 5380 then AA 1280 at Philadelphia
Milwaukee → Philadelphia → Nashville
Timetable, Philadelphia time
09:13AA 5380 from Milwaukee at the gate
15:43AA 1280 to Nashville leaves the gate
6 h 30 apart on the timetable
The last days
AA 5380 and AA 1280 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.