AA 6284 then AA 4799 at O'Hare
Des Moines → Chicago → Harrisburg
Timetable, Chicago time
11:10AA 6284 from Des Moines at the gate
16:30AA 4799 to Harrisburg leaves the gate
5 h 20 apart on the timetable
The last days
AA 6284 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.