AA 5948 then AA 5215 at Philadelphia
Hartford → Philadelphia → Nashville
Timetable, Philadelphia time
12:09AA 5948 from Hartford at the gate
15:39AA 5215 to Nashville leaves the gate
3 h 30 apart on the timetable
The last days
AA 5948 and AA 5215 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.