AA 9866 then UA 4779 at O'Hare
Bloomington-Normal → Chicago → Fargo
Timetable, Chicago time
13:11AA 9866 from Bloomington-Normal at the gate
08:40UA 4779 to Fargo leaves the gate
19 h 29 apart on the timetable, overnight
UA 4779 leaves 19 h 29 after AA 9866 arrives on the timetable: more than half a day, so not a connection we count.