UA 2091 then KD 211 at O'Hare
San Francisco → Chicago → Anchorage
Timetable, Chicago time
12:59UA 2091 from San Francisco at the gate
12:00KD 211 to Anchorage leaves the gate
23 h 01 apart on the timetable, overnight
KD 211 leaves 23 h 01 after UA 2091 arrives on the timetable: more than half a day, so not a connection we count.