K4 579 then UA 4783 at O'Hare
Fairbanks → Chicago → Rapid City
Timetable, Chicago time
16:23K4 579 from Fairbanks at the gate
08:40UA 4783 to Rapid City leaves the gate
16 h 17 apart on the timetable, overnight
UA 4783 leaves 16 h 17 after K4 579 arrives on the timetable: more than half a day, so not a connection we count.