AA 6186 then AA 4144 at Phoenix
Tucson → Phoenix → Ontario
Timetable, Phoenix time
08:05AA 6186 from Tucson at the gate
15:56AA 4144 to Ontario leaves the gate
7 h 51 apart on the timetable
The last days
AA 6186 and AA 4144 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.