AA 5477 then UA 3683 at O'Hare
Madison → Chicago → Buffalo
Timetable, Chicago time
08:50AA 5477 from Madison at the gate
14:17UA 3683 to Buffalo leaves the gate
5 h 27 apart on the timetable
The last days
AA 5477 and UA 3683 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.