AC 7041 then AC 8825 at Montréal
Boston → Montréal → Washington National
Timetable, Montréal time
00:10AC 7041 from Boston at the gate
20:00AC 8825 to Washington National leaves the gate
19 h 50 apart on the timetable
AC 8825 leaves 19 h 50 after AC 7041 arrives on the timetable: more than half a day, so not a connection we count.