UA 3772 then AS 2459 at San Francisco
Las Vegas → San Francisco → San Diego
Timetable, San Francisco time
22:05UA 3772 from Las Vegas at the gate
20:00AS 2459 to San Diego leaves the gatealso QR 8803, AA 9319
21 h 55 apart on the timetable, overnight
AS 2459 leaves 21 h 55 after UA 3772 arrives on the timetable: more than half a day, so not a connection we count.