AA 6509 then AA 3644 at Phoenix
Flagstaff → Phoenix → Grand Junction
Timetable, Phoenix time
08:53AA 6509 from Flagstaff at the gate
16:13AA 3644 to Grand Junction leaves the gate
7 h 20 apart on the timetable
The last days
AA 6509 and AA 3644 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.