AC 8620 then DL 8841 at Dulles
Toronto Pearson → Washington → Toronto Pearson
Timetable, Washington time
20:10AC 8620 from Toronto Pearson at the gate
16:00DL 8841 to Toronto Pearson leaves the gate
19 h 50 apart on the timetable, overnight
DL 8841 leaves 19 h 50 after AC 8620 arrives on the timetable: more than half a day, so not a connection we count.