UA 1970 then WN 3784 at San Francisco
Cleveland → San Francisco → San Diego
Timetable, San Francisco time
21:45UA 1970 from Cleveland at the gatealso VA 8489, NZ 9046, OZ 9526
15:10WN 3784 to San Diego leaves the gate
17 h 25 apart on the timetable, overnight
WN 3784 leaves 17 h 25 after UA 1970 arrives on the timetable: more than half a day, so not a connection we count.