AA 3164 then DL 2570 at O'Hare
New York LaGuardia → Chicago → Boston
Timetable, Chicago time
10:53AA 3164 from New York LaGuardia at the gate
10:35DL 2570 to Boston leaves the gate
23 h 42 apart on the timetable, overnight
DL 2570 leaves 23 h 42 after AA 3164 arrives on the timetable: more than half a day, so not a connection we count.