UA 2458 then KD 211 at O'Hare
Las Vegas → Chicago → Anchorage
Timetable, Chicago time
16:48UA 2458 from Las Vegas at the gate
12:00KD 211 to Anchorage leaves the gate
19 h 12 apart on the timetable, overnight
KD 211 leaves 19 h 12 after UA 2458 arrives on the timetable: more than half a day, so not a connection we count.