AC 2009 then DL 5256 at Toronto Pearson
Saint John → Toronto → Detroit
Timetable, Toronto time
19:23AC 2009 from Saint John at the gate
12:15DL 5256 to Detroit leaves the gate
16 h 52 apart on the timetable, overnight
DL 5256 leaves 16 h 52 after AC 2009 arrives on the timetable: more than half a day, so not a connection we count.