AS 634 then UA 930 at San Francisco
Las Vegas → San Francisco → London
Timetable, San Francisco time
17:41AS 634 from Las Vegas at the gatealso QF 3697, FJ 5841, AA 7412, CX 7935, QR 8861
16:40UA 930 to London leaves the gatealso LX 3049, AC 5376, OS 7858, SN 9100, LH 9379
22 h 59 apart on the timetable, overnight
UA 930 leaves 22 h 59 after AS 634 arrives on the timetable: more than half a day, so not a connection we count.