AA 3278 then AA 3303 at Philadelphia
Pittsburgh → Philadelphia → Houston
Timetable, Philadelphia time
07:25AA 3278 from Pittsburgh at the gate
08:53AA 3303 to Houston leaves the gate
1 h 28 apart on the timetable
The last days
AA 3278 and AA 3303 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.