UA 3876 then KD 211 at O'Hare
Miami → Chicago → Anchorage
Timetable, Chicago time
14:49UA 3876 from Miami at the gate
12:00KD 211 to Anchorage leaves the gate
21 h 11 apart on the timetable, overnight
KD 211 leaves 21 h 11 after UA 3876 arrives on the timetable: more than half a day, so not a connection we count.