AA 3815 then UA 4465 at O'Hare
Hartford → Chicago → Cedar Rapids
Timetable, Chicago time
20:15AA 3815 from Hartford at the gate
16:10UA 4465 to Cedar Rapids leaves the gate
19 h 55 apart on the timetable, overnight
UA 4465 leaves 19 h 55 after AA 3815 arrives on the timetable: more than half a day, so not a connection we count.