UA 2615 then AC 742 at San Francisco
Portland (Oregon) → San Francisco → Toronto
Timetable, San Francisco time
21:18UA 2615 from Portland (Oregon) at the gatealso AC 3339, LH 7841, VA 8461, NZ 9352
14:00AC 742 to Toronto leaves the gatealso OS 8357
16 h 42 apart on the timetable, overnight
AC 742 leaves 16 h 42 after UA 2615 arrives on the timetable: more than half a day, so not a connection we count.