AA 3083 then WN 3553 at Atlanta
Philadelphia → Atlanta → Pittsburgh
Timetable, Atlanta time
13:24AA 3083 from Philadelphia at the gate
17:10WN 3553 to Pittsburgh leaves the gate
3 h 46 apart on the timetable
The last days
AA 3083 and WN 3553 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.