AS 634 then UA 582 at San Francisco
Las Vegas → San Francisco → Boise
Timetable, San Francisco time
17:41AS 634 from Las Vegas at the gatealso QF 3697, FJ 5841, AA 7412, CX 7935, QR 8861
14:02UA 582 to Boise leaves the gatealso AC 3996
20 h 21 apart on the timetable, overnight
UA 582 leaves 20 h 21 after AS 634 arrives on the timetable: more than half a day, so not a connection we count.