UA 345 then 2I 405 at San Francisco
Las Vegas → San Francisco → Cincinnati
Timetable, San Francisco time
19:58UA 345 from Las Vegas at the gatealso CM 1891, UA 2721, NZ 9241
19:342I 405 to Cincinnati leaves the gate
23 h 36 apart on the timetable, overnight
2I 405 leaves 23 h 36 after UA 345 arrives on the timetable: more than half a day, so not a connection we count.