AA 1409 then AA 4547 at O'Hare
Charlotte → Chicago → Boston
Timetable, Chicago time
09:00AA 1409 from Charlotte at the gate
10:54AA 4547 to Boston leaves the gate
1 h 54 apart on the timetable
Today
From the airport’s board at 07:23 Chicago time
09:00AA 1409 due at the gate, no estimate yet
10:54AA 4547 due to leave, no estimate yet
1 h 54 between the gates, on these times
The last days
AA 1409 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.