AA 2155 then AA 4799 at O'Hare
Hartford → Chicago → Harrisburg
Timetable, Chicago time
14:10AA 2155 from Hartford at the gate
16:30AA 4799 to Harrisburg leaves the gate
2 h 20 apart on the timetable
The last days
AA 2155 and AA 4799 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.