AA 4401 then UA 1673 at O'Hare
Norfolk → Chicago → Dallas-Fort Worth
Timetable, Chicago time
08:00AA 4401 from Norfolk at the gate
20:10UA 1673 to Dallas-Fort Worth leaves the gate
12 h 10 apart on the timetable
UA 1673 leaves 12 h 10 after AA 4401 arrives on the timetable: more than half a day, so not a connection we count.