DL 1007 then UA 4632 at Atlanta
Washington National → Atlanta → Chicago O'Hare
Timetable, Atlanta time
21:41DL 1007 from Washington National at the gate
11:05UA 4632 to Chicago O'Hare leaves the gate
13 h 24 apart on the timetable, overnight
UA 4632 leaves 13 h 24 after DL 1007 arrives on the timetable: more than half a day, so not a connection we count.