K4 579 then UA 2099 at O'Hare
Fairbanks → Chicago → Seattle (SEA)
Timetable, Chicago time
16:23K4 579 from Fairbanks at the gate
09:25UA 2099 to Seattle (SEA) leaves the gate
17 h 02 apart on the timetable, overnight
UA 2099 leaves 17 h 02 after K4 579 arrives on the timetable: more than half a day, so not a connection we count.