UA 1970 then Y4 2443 at San Francisco
Cleveland → San Francisco → Las Vegas
Timetable, San Francisco time
21:45UA 1970 from Cleveland at the gatealso VA 8489, NZ 9046, OZ 9526
14:21Y4 2443 to Las Vegas leaves the gatealso F9 2486
16 h 36 apart on the timetable, overnight
Y4 2443 leaves 16 h 36 after UA 1970 arrives on the timetable: more than half a day, so not a connection we count.