AA 866 then AA 4536 at O'Hare
Boston → Chicago → Indianapolis
Timetable, Chicago time
15:37AA 866 from Boston at the gate
22:30AA 4536 to Indianapolis leaves the gate
6 h 53 apart on the timetable
Today
From the airport’s board at 02:37 Chicago time
15:37AA 866 due at the gate, no estimate yet
22:30AA 4536 due to leave, no estimate yet
6 h 53 between the gates, on these times
The last days
AA 866 and AA 4536 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.