AS 429 then ET 3511 at O'Hare
Seattle (SEA) → Chicago → Muscat
Timetable, Chicago time
17:37AS 429 from Seattle (SEA) at the gate
09:05ET 3511 to Muscat leaves the gate
15 h 28 apart on the timetable, overnight
ET 3511 leaves 15 h 28 after AS 429 arrives on the timetable: more than half a day, so not a connection we count.