UA 8145 then PR 3884 at San Francisco
Reno → San Francisco → Los Angeles
Timetable, San Francisco time
17:59UA 8145 from Reno at the gate
18:32PR 3884 to Los Angeles leaves the gatealso FJ 5114
33 min apart on the timetable
The last days
UA 8145 and PR 3884 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.