UA 1970 then AC 740 at San Francisco
Cleveland → San Francisco → Toronto
Timetable, San Francisco time
21:45UA 1970 from Cleveland at the gatealso VA 8489, NZ 9046, OZ 9526
12:00AC 740 to Toronto leaves the gatealso SQ 1018, NZ 4724, OS 8216, UA 8292
14 h 15 apart on the timetable, overnight
AC 740 leaves 14 h 15 after UA 1970 arrives on the timetable: more than half a day, so not a connection we count.