CK 225 then UA 1740 at O'Hare
Seattle (SEA) → Chicago → Fort Myers
Timetable, Chicago time
07:42CK 225 from Seattle (SEA) at the gate
07:15UA 1740 to Fort Myers leaves the gate
23 h 33 apart on the timetable, overnight
UA 1740 leaves 23 h 33 after CK 225 arrives on the timetable: more than half a day, so not a connection we count.