DL 361 then UA 8213 at San Francisco
Detroit → San Francisco → San Diego
Timetable, San Francisco time
10:48DL 361 from Detroit at the gatealso WS 8398
13:20UA 8213 to San Diego leaves the gate
2 h 32 apart on the timetable
The last days
DL 361 and UA 8213 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.