AA 214 then UA 3916 at O'Hare
Dallas-Fort Worth → Chicago → New Orleans
Timetable, Chicago time
12:04AA 214 from Dallas-Fort Worth at the gate
07:00UA 3916 to New Orleans leaves the gate
18 h 56 apart on the timetable, overnight
UA 3916 leaves 18 h 56 after AA 214 arrives on the timetable: more than half a day, so not a connection we count.