AA 3591 then AA 338 at Phoenix
Monterey → Phoenix → Chicago O'Hare
Timetable, Phoenix time
09:05AA 3591 from Monterey at the gate
12:23AA 338 to Chicago O'Hare leaves the gate
3 h 18 apart on the timetable
The last days
AA 3591 and AA 338 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.