UA 3501 then AA 2949 at O'Hare
Kansas City → Chicago → Raleigh-Durham
Timetable, Chicago time
17:05UA 3501 from Kansas City at the gate
11:50AA 2949 to Raleigh-Durham leaves the gate
18 h 45 apart on the timetable, overnight
AA 2949 leaves 18 h 45 after UA 3501 arrives on the timetable: more than half a day, so not a connection we count.