AA 4996 then ET 3511 at O'Hare
Cedar Rapids → Chicago → Muscat
Timetable, Chicago time
12:30AA 4996 from Cedar Rapids at the gate
09:05ET 3511 to Muscat leaves the gate
20 h 35 apart on the timetable, overnight
ET 3511 leaves 20 h 35 after AA 4996 arrives on the timetable: more than half a day, so not a connection we count.