AA 3233 then AA 5859 at Philadelphia
Burlington → Philadelphia → Hartford
Timetable, Philadelphia time
07:40AA 3233 from Burlington at the gate
11:45AA 5859 to Hartford leaves the gate
4 h 05 apart on the timetable
The last days
AA 3233 and AA 5859 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.