AA 1726 then ET 3511 at O'Hare
Austin → Chicago → Muscat
Timetable, Chicago time
11:05AA 1726 from Austin at the gate
09:05ET 3511 to Muscat leaves the gate
22 h apart on the timetable, overnight
ET 3511 leaves 22 h after AA 1726 arrives on the timetable: more than half a day, so not a connection we count.