YV 4047 then AC 8619 at Dulles
Providence → Washington → Toronto Pearson
Timetable, Washington time
17:05YV 4047 from Providence at the gate
16:30AC 8619 to Toronto Pearson leaves the gate
23 h 25 apart on the timetable, overnight
AC 8619 leaves 23 h 25 after YV 4047 arrives on the timetable: more than half a day, so not a connection we count.