UA 677 then VA 8562 at San Francisco
Seattle → San Francisco → Las Vegas
Timetable, San Francisco time
19:38UA 677 from Seattle at the gate
08:35VA 8562 to Las Vegas leaves the gate
12 h 57 apart on the timetable, overnight
VA 8562 leaves 12 h 57 after UA 677 arrives on the timetable: more than half a day, so not a connection we count.