BA 2954 then QR 3391 at San Francisco
Las Vegas → San Francisco → San Diego
Timetable, San Francisco time
12:16BA 2954 from Las Vegas at the gate
10:29QR 3391 to San Diego leaves the gatealso QF 3748
22 h 13 apart on the timetable, overnight
QR 3391 leaves 22 h 13 after BA 2954 arrives on the timetable: more than half a day, so not a connection we count.