AA 4171 then AA 1164 at Phoenix
Ontario → Phoenix → Chicago O'Hare
Timetable, Phoenix time
11:02AA 4171 from Ontario at the gate
16:13AA 1164 to Chicago O'Hare leaves the gate
5 h 11 apart on the timetable
The last days
AA 4171 and AA 1164 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.