AA 2009 then AA 4536 at O'Hare
Nashville → Chicago → Indianapolis
Timetable, Chicago time
17:29AA 2009 from Nashville at the gate
22:30AA 4536 to Indianapolis leaves the gate
5 h 01 apart on the timetable
Today
From the airport’s board at 04:35 Chicago time
17:29AA 2009 due at the gate, no estimate yet
22:30AA 4536 due to leave, no estimate yet
5 h 01 between the gates, on these times
The last days
AA 2009 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.