AC 4121 then AC 567 at San Francisco
Ontario → San Francisco → Vancouver
Timetable, San Francisco time
17:50AC 4121 from Ontario at the gate
14:45AC 567 to Vancouver leaves the gatealso SQ 1021, NZ 4608, UA 8564
20 h 55 apart on the timetable, overnight
AC 567 leaves 20 h 55 after AC 4121 arrives on the timetable: more than half a day, so not a connection we count.