AA 5963 then AA 2122 at Philadelphia
Harrisburg → Philadelphia → Austin
Timetable, Philadelphia time
07:15AA 5963 from Harrisburg at the gate
11:00AA 2122 to Austin leaves the gate
3 h 45 apart on the timetable
The last days
AA 5963 and AA 2122 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.