DL 1306 then ET 3511 at O'Hare
Minneapolis → Chicago → Muscat
Timetable, Chicago time
16:40DL 1306 from Minneapolis at the gate
09:05ET 3511 to Muscat leaves the gate
16 h 25 apart on the timetable, overnight
ET 3511 leaves 16 h 25 after DL 1306 arrives on the timetable: more than half a day, so not a connection we count.