DL 420 then AA 3443 at O'Hare
Savannah → Chicago → Rochester (ROC)
Timetable, Chicago time
13:13DL 420 from Savannah at the gate
12:00AA 3443 to Rochester (ROC) leaves the gate
22 h 47 apart on the timetable, overnight
AA 3443 leaves 22 h 47 after DL 420 arrives on the timetable: more than half a day, so not a connection we count.