AA 4450 then AA 6241 at O'Hare
Madison → Chicago → Milwaukee
Timetable, Chicago time
06:21AA 4450 from Madison at the gate
06:59AA 6241 to Milwaukee leaves the gate
38 min apart on the timetable
The last days
AA 4450 and AA 6241 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.