AA 6316 then AA 4144 at Phoenix
Sioux Falls → Phoenix → Ontario
Timetable, Phoenix time
15:11AA 6316 from Sioux Falls at the gate
15:56AA 4144 to Ontario leaves the gate
45 min apart on the timetable
The last days
AA 6316 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.