AA 2437 then AC 8746 at Charlotte
Pittsburgh → Charlotte → Toronto
Timetable, Charlotte time
09:17AA 2437 from Pittsburgh at the gate
08:55AC 8746 to Toronto leaves the gate
23 h 38 apart on the timetable, overnight
AC 8746 leaves 23 h 38 after AA 2437 arrives on the timetable: more than half a day, so not a connection we count.