K4 579 then UA 4393 at O'Hare
Fairbanks → Chicago → Tulsa
Timetable, Chicago time
16:23K4 579 from Fairbanks at the gate
12:45UA 4393 to Tulsa leaves the gate
20 h 22 apart on the timetable, overnight
UA 4393 leaves 20 h 22 after K4 579 arrives on the timetable: more than half a day, so not a connection we count.