PR 3898 then WN 1790 at San Francisco
Los Angeles → San Francisco → Las Vegas
Timetable, San Francisco time
13:19PR 3898 from Los Angeles at the gate
12:50WN 1790 to Las Vegas leaves the gate
23 h 31 apart on the timetable, overnight
WN 1790 leaves 23 h 31 after PR 3898 arrives on the timetable: more than half a day, so not a connection we count.