AA 1648 then AA 4524 at O'Hare
Syracuse → Chicago → Memphis
Timetable, Chicago time
07:31AA 1648 from Syracuse at the gate
11:50AA 4524 to Memphis leaves the gate
4 h 19 apart on the timetable
The last days
AA 1648 and AA 4524 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.