UA 345 then UA 8180 at San Francisco
Las Vegas → San Francisco → Ontario
Timetable, San Francisco time
19:58UA 345 from Las Vegas at the gatealso CM 1891, UA 2721, AC 3110, NZ 9241
19:55UA 8180 to Ontario leaves the gate
23 h 57 apart on the timetable, overnight
UA 8180 leaves 23 h 57 after UA 345 arrives on the timetable: more than half a day, so not a connection we count.