UA 8264 then UA 519 at San Francisco
Houston → San Francisco → Reno
Timetable, San Francisco time
15:49UA 8264 from Houston at the gate
20:40UA 519 to Reno leaves the gate
4 h 51 apart on the timetable
The last days
UA 8264 and UA 519 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.