AA 4933 then ET 3511 at O'Hare
Des Moines → Chicago → Muscat
Timetable, Chicago time
15:39AA 4933 from Des Moines at the gate
09:05ET 3511 to Muscat leaves the gate
17 h 26 apart on the timetable, overnight
ET 3511 leaves 17 h 26 after AA 4933 arrives on the timetable: more than half a day, so not a connection we count.