WN 4550 then VA 8562 at San Francisco
Dallas → San Francisco → Las Vegas
Timetable, San Francisco time
10:15WN 4550 from Dallas at the gate
08:40VA 8562 to Las Vegas leaves the gate
22 h 25 apart on the timetable, overnight
VA 8562 leaves 22 h 25 after WN 4550 arrives on the timetable: more than half a day, so not a connection we count.