AA 2290 then MQ 3757 at Miami
Nashville → Miami → Cincinnati
Timetable, Miami time
09:25AA 2290 from Nashville at the gate
08:26MQ 3757 to Cincinnati leaves the gate
23 h 01 apart on the timetable, overnight
MQ 3757 leaves 23 h 01 after AA 2290 arrives on the timetable: more than half a day, so not a connection we count.