UA 2356 then UA 608 at San Francisco
Las Vegas → San Francisco → Toronto
Timetable, San Francisco time
08:59UA 2356 from Las Vegas at the gatealso AC 3488, OZ 6341, CA 7252, NH 7309, VA 8128, NZ 9236
08:10UA 608 to Toronto leaves the gatealso AC 3455
23 h 11 apart on the timetable, overnight
UA 608 leaves 23 h 11 after UA 2356 arrives on the timetable: more than half a day, so not a connection we count.