AA 6434 then ET 3511 at O'Hare
Oklahoma City → Chicago → Muscat
Timetable, Chicago time
16:39AA 6434 from Oklahoma City at the gate
09:05ET 3511 to Muscat leaves the gate
16 h 26 apart on the timetable, overnight
ET 3511 leaves 16 h 26 after AA 6434 arrives on the timetable: more than half a day, so not a connection we count.