AA 3346 then ET 3511 at O'Hare
Madison → Chicago → Muscat
Timetable, Chicago time
20:30AA 3346 from Madison at the gate
09:05ET 3511 to Muscat leaves the gate
12 h 35 apart on the timetable, overnight
ET 3511 leaves 12 h 35 after AA 3346 arrives on the timetable: more than half a day, so not a connection we count.