AA 9866 then UA 2672 at O'Hare
Bloomington-Normal → Chicago → Pensacola
Timetable, Chicago time
13:11AA 9866 from Bloomington-Normal at the gate
10:47UA 2672 to Pensacola leaves the gate
21 h 36 apart on the timetable, overnight
UA 2672 leaves 21 h 36 after AA 9866 arrives on the timetable: more than half a day, so not a connection we count.