AA 3474 then AA 4524 at O'Hare
Mosinee → Chicago → Memphis
Timetable, Chicago time
08:00AA 3474 from Mosinee at the gate
11:50AA 4524 to Memphis leaves the gate
3 h 50 apart on the timetable
The last days
AA 3474 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.