CK 225 then UA 4748 at O'Hare
Seattle (SEA) → Chicago → Moline
Timetable, Chicago time
07:42CK 225 from Seattle (SEA) at the gate
20:05UA 4748 to Moline leaves the gate
12 h 23 apart on the timetable
UA 4748 leaves 12 h 23 after CK 225 arrives on the timetable: more than half a day, so not a connection we count.