DL 637 then KD 211 at O'Hare
Seattle (SEA) → Chicago → Anchorage
Timetable, Chicago time
16:47DL 637 from Seattle (SEA) at the gate
12:00KD 211 to Anchorage leaves the gate
19 h 13 apart on the timetable, overnight
KD 211 leaves 19 h 13 after DL 637 arrives on the timetable: more than half a day, so not a connection we count.