UA 1341 then AC 740 at San Francisco
Detroit → San Francisco → Toronto
Timetable, San Francisco time
19:31UA 1341 from Detroit at the gatealso OZ 9538
12:00AC 740 to Toronto leaves the gatealso SQ 1018, NZ 4724, OS 8216, UA 8292
16 h 29 apart on the timetable, overnight
AC 740 leaves 16 h 29 after UA 1341 arrives on the timetable: more than half a day, so not a connection we count.