UA 4543 then KD 211 at O'Hare
Pittsburgh → Chicago → Anchorage
Timetable, Chicago time
17:00UA 4543 from Pittsburgh at the gate
12:00KD 211 to Anchorage leaves the gate
19 h apart on the timetable, overnight
KD 211 leaves 19 h after UA 4543 arrives on the timetable: more than half a day, so not a connection we count.