DL 1716 then AA 2253 at O'Hare
Detroit → Chicago → San Francisco
Timetable, Chicago time
13:59DL 1716 from Detroit at the gate
13:26AA 2253 to San Francisco leaves the gate
23 h 27 apart on the timetable, overnight
AA 2253 leaves 23 h 27 after DL 1716 arrives on the timetable: more than half a day, so not a connection we count.