DL 5615 then AA 498 at Boston
Louisville → Boston → New York LaGuardia
Timetable, Boston time
18:14DL 5615 from Louisville at the gate
17:20AA 498 to New York LaGuardia leaves the gate
23 h 06 apart on the timetable, overnight
AA 498 leaves 23 h 06 after DL 5615 arrives on the timetable: more than half a day, so not a connection we count.