AA 3165 then ET 3511 at O'Hare
Phoenix → Chicago → Muscat
Timetable, Chicago time
17:55AA 3165 from Phoenix at the gate
09:05ET 3511 to Muscat leaves the gate
15 h 10 apart on the timetable, overnight
ET 3511 leaves 15 h 10 after AA 3165 arrives on the timetable: more than half a day, so not a connection we count.