AA 3526 then ET 3511 at O'Hare
Kansas City → Chicago → Muscat
Timetable, Chicago time
17:19AA 3526 from Kansas City at the gate
09:05ET 3511 to Muscat leaves the gate
15 h 46 apart on the timetable, overnight
ET 3511 leaves 15 h 46 after AA 3526 arrives on the timetable: more than half a day, so not a connection we count.