AA 1063 then DL 1510 at Miami
New York JFK → Miami → Atlanta
Timetable, Miami time
00:45AA 1063 from New York JFK at the gate
12:51DL 1510 to Atlanta leaves the gate
12 h 06 apart on the timetable
DL 1510 leaves 12 h 06 after AA 1063 arrives on the timetable: more than half a day, so not a connection we count.