AA 835 then AA 4755 at O'Hare
Miami → Chicago → Minneapolis
Timetable, Chicago time
15:31AA 835 from Miami at the gate
16:00AA 4755 to Minneapolis leaves the gate
29 min apart on the timetable
The last days
AA 835 and AA 4755 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.