CK 625 then ET 3511 at O'Hare
Seattle (SEA) → Chicago → Muscat
Timetable, Chicago time
16:33CK 625 from Seattle (SEA) at the gate
09:05ET 3511 to Muscat leaves the gate
16 h 32 apart on the timetable, overnight
ET 3511 leaves 16 h 32 after CK 625 arrives on the timetable: more than half a day, so not a connection we count.