AA 9921 then CV 2 at O'Hare
Phoenix → Chicago → Indianapolis
Timetable, Chicago time
16:00AA 9921 from Phoenix at the gate
21:45CV 2 to Indianapolis leaves the gate
5 h 45 apart on the timetable
The last days
AA 9921 and CV 2 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.