AA 4440 then AA 4547 at O'Hare
Madison → Chicago → Boston
Timetable, Chicago time
07:30AA 4440 from Madison at the gate
10:54AA 4547 to Boston leaves the gate
3 h 24 apart on the timetable
Today
From the airport’s board at 06:11 Chicago time
07:30AA 4440 due at the gate, no estimate yet
10:54AA 4547 due to leave, no estimate yet
3 h 24 between the gates, on these times
The last days
AA 4440 and AA 4547 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.