AA 2570 then DL 847 at Salt Lake City
Chicago O'Hare → Salt Lake City → Washington
Timetable, Salt Lake City time
16:46AA 2570 from Chicago O'Hare at the gate
14:10DL 847 to Washington leaves the gate
21 h 24 apart on the timetable, overnight
DL 847 leaves 21 h 24 after AA 2570 arrives on the timetable: more than half a day, so not a connection we count.