UA 548 then WN 2386 at San Francisco
Newark → San Francisco → Las Vegas
Timetable, San Francisco time
13:38UA 548 from Newark at the gatealso VA 8166, NZ 9128
10:05WN 2386 to Las Vegas leaves the gate
20 h 27 apart on the timetable, overnight
WN 2386 leaves 20 h 27 after UA 548 arrives on the timetable: more than half a day, so not a connection we count.