MQ 4638 then AA 4518 at Miami
Tampa → Miami → Louisville
Timetable, Miami time
20:51MQ 4638 from Tampa at the gate
15:33AA 4518 to Louisville leaves the gate
18 h 42 apart on the timetable, overnight
AA 4518 leaves 18 h 42 after MQ 4638 arrives on the timetable: more than half a day, so not a connection we count.