CV 78 then AA 3648 at O'Hare
Dallas-Fort Worth → Chicago → Greensboro
Timetable, Chicago time
20:02CV 78 from Dallas-Fort Worth at the gate
19:15AA 3648 to Greensboro leaves the gate
23 h 13 apart on the timetable, overnight
AA 3648 leaves 23 h 13 after CV 78 arrives on the timetable: more than half a day, so not a connection we count.