AA 1669 then DL 1733 at Miami
Los Angeles → Miami → Detroit
Timetable, Miami time
06:40AA 1669 from Los Angeles at the gate
18:53DL 1733 to Detroit leaves the gate
12 h 13 apart on the timetable
DL 1733 leaves 12 h 13 after AA 1669 arrives on the timetable: more than half a day, so not a connection we count.