K4 577 then UA 3876 at O'Hare
Anchorage → Chicago → Miami
Timetable, Chicago time
04:16K4 577 from Anchorage at the gate
21:00UA 3876 to Miami leaves the gate
16 h 44 apart on the timetable
UA 3876 leaves 16 h 44 after K4 577 arrives on the timetable: more than half a day, so not a connection we count.