UA 3013 then AA 4524 at O'Hare
São Paulo → Chicago → Memphis
Timetable, Chicago time
07:17UA 3013 from São Paulo at the gate
11:50AA 4524 to Memphis leaves the gate
4 h 33 apart on the timetable
The last days
UA 3013 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.