DL 1147 then AA 4988 at O'Hare
Atlanta → Chicago → Santa Fe
Timetable, Chicago time
10:25DL 1147 from Atlanta at the gate
10:17AA 4988 to Santa Fe leaves the gate
23 h 52 apart on the timetable, overnight
AA 4988 leaves 23 h 52 after DL 1147 arrives on the timetable: more than half a day, so not a connection we count.