AA 3900 then AA 1613 at Phoenix
Santa Rosa → Phoenix → Las Vegas
Timetable, Phoenix time
10:43AA 3900 from Santa Rosa at the gate
11:20AA 1613 to Las Vegas leaves the gate
37 min apart on the timetable
The last days
AA 3900 and AA 1613 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.