K4 579 then UA 2684 at O'Hare
Fairbanks → Chicago → Atlanta
Timetable, Chicago time
16:23K4 579 from Fairbanks at the gate
10:28UA 2684 to Atlanta leaves the gate
18 h 05 apart on the timetable, overnight
UA 2684 leaves 18 h 05 after K4 579 arrives on the timetable: more than half a day, so not a connection we count.