AA 6439 then AA 4921 at Phoenix
Boise → Phoenix → Monterey
Timetable, Phoenix time
07:38AA 6439 from Boise at the gate
11:10AA 4921 to Monterey leaves the gate
3 h 32 apart on the timetable
The last days
AA 6439 and AA 4921 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.