K4 579 then UA 661 at O'Hare
Fairbanks → Chicago → Fort Myers
Timetable, Chicago time
16:23K4 579 from Fairbanks at the gate
09:00UA 661 to Fort Myers leaves the gate
16 h 37 apart on the timetable, overnight
UA 661 leaves 16 h 37 after K4 579 arrives on the timetable: more than half a day, so not a connection we count.