AA 831 then MQ 3676 at Miami
Washington National → Miami → Cincinnati
Timetable, Miami time
07:43AA 831 from Washington National at the gate
19:46MQ 3676 to Cincinnati leaves the gate
12 h 03 apart on the timetable
MQ 3676 leaves 12 h 03 after AA 831 arrives on the timetable: more than half a day, so not a connection we count.