AA 4713 then ET 3511 at O'Hare
Indianapolis → Chicago → Muscat
Timetable, Chicago time
15:45AA 4713 from Indianapolis at the gate
09:05ET 3511 to Muscat leaves the gate
17 h 20 apart on the timetable, overnight
ET 3511 leaves 17 h 20 after AA 4713 arrives on the timetable: more than half a day, so not a connection we count.