CK 225 then UA 2415 at O'Hare
Seattle (SEA) → Chicago → Hartford
Timetable, Chicago time
07:42CK 225 from Seattle (SEA) at the gate
07:25UA 2415 to Hartford leaves the gate
23 h 43 apart on the timetable, overnight
UA 2415 leaves 23 h 43 after CK 225 arrives on the timetable: more than half a day, so not a connection we count.