AA 4466 then DL 2305 at Boston
New York LaGuardia → Boston → Dallas-Fort Worth
Timetable, Boston time
07:12AA 4466 from New York LaGuardia at the gate
19:30DL 2305 to Dallas-Fort Worth leaves the gate
12 h 18 apart on the timetable
DL 2305 leaves 12 h 18 after AA 4466 arrives on the timetable: more than half a day, so not a connection we count.