MQ 4638 then AM 421 at Miami
Tampa → Miami → Mexico City
Timetable, Miami time
20:51MQ 4638 from Tampa at the gate
17:31AM 421 to Mexico City leaves the gate
20 h 40 apart on the timetable, overnight
AM 421 leaves 20 h 40 after MQ 4638 arrives on the timetable: more than half a day, so not a connection we count.