AC 7306 then AC 8784 at Toronto Pearson
Dallas-Fort Worth → Toronto → Washington National
Timetable, Toronto time
17:30AC 7306 from Dallas-Fort Worth at the gate
16:40AC 8784 to Washington National leaves the gate
23 h 10 apart on the timetable, overnight
AC 8784 leaves 23 h 10 after AC 7306 arrives on the timetable: more than half a day, so not a connection we count.