MQ 4638 then AA 1074 at Miami
Tampa → Miami → Boston
Timetable, Miami time
20:51MQ 4638 from Tampa at the gate
16:10AA 1074 to Boston leaves the gate
19 h 19 apart on the timetable, overnight
AA 1074 leaves 19 h 19 after MQ 4638 arrives on the timetable: more than half a day, so not a connection we count.