DL 2570 then AA 2323 at O'Hare
Boston → Chicago → Palm Springs
Timetable, Chicago time
09:55DL 2570 from Boston at the gate
09:50AA 2323 to Palm Springs leaves the gate
23 h 55 apart on the timetable, overnight
AA 2323 leaves 23 h 55 after DL 2570 arrives on the timetable: more than half a day, so not a connection we count.