AA 2416 then AA 4536 at O'Hare
Houston → Chicago → Indianapolis
Timetable, Chicago time
21:49AA 2416 from Houston at the gate
22:30AA 4536 to Indianapolis leaves the gate
41 min apart on the timetable
The last days
AA 2416 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.