AA 4440 then 1I 501 at O'Hare
Madison → Chicago → Milwaukee
Timetable, Chicago time
07:30AA 4440 from Madison at the gate
16:301I 501 to Milwaukee leaves the gate
9 h apart on the timetable
Today
From the airport’s board at 13:55 Chicago time
07:13AA 4440 reached the gate17 min early
16:301I 501 due to leave, no estimate yet
9 h 17 between the gates, on these times
The last days
AA 4440 and 1I 501 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.