MQ 4638 then AA 257 at Miami
Tampa → Miami → Mexico City
Timetable, Miami time
20:51MQ 4638 from Tampa at the gate
18:30AA 257 to Mexico City leaves the gate
21 h 39 apart on the timetable, overnight
AA 257 leaves 21 h 39 after MQ 4638 arrives on the timetable: more than half a day, so not a connection we count.