CM 2541 then QR 3391 at San Francisco
Reno → San Francisco → San Diego
Timetable, San Francisco time
17:42CM 2541 from Reno at the gatealso UA 5247
10:29QR 3391 to San Diego leaves the gatealso QF 3748
16 h 47 apart on the timetable, overnight
QR 3391 leaves 16 h 47 after CM 2541 arrives on the timetable: more than half a day, so not a connection we count.