UA 3772 then DL 635 at San Francisco
Las Vegas → San Francisco → Atlanta
Timetable, San Francisco time
22:05UA 3772 from Las Vegas at the gate
21:42DL 635 to Atlanta leaves the gate
23 h 37 apart on the timetable, overnight
DL 635 leaves 23 h 37 after UA 3772 arrives on the timetable: more than half a day, so not a connection we count.