AC 2009 then AC 1867 at Toronto Pearson
Saint John → Toronto → Puerto Vallarta
Timetable, Toronto time
19:23AC 2009 from Saint John at the gate
08:15AC 1867 to Puerto Vallarta leaves the gate
12 h 52 apart on the timetable, overnight
AC 1867 leaves 12 h 52 after AC 2009 arrives on the timetable: more than half a day, so not a connection we count.