DL 1790 then AA 3676 at Miami
Havana → Miami → Cincinnati
Timetable, Miami time
17:53DL 1790 from Havana at the gate
17:10AA 3676 to Cincinnati leaves the gate
23 h 17 apart on the timetable, overnight
AA 3676 leaves 23 h 17 after DL 1790 arrives on the timetable: more than half a day, so not a connection we count.