KD 214 then AA 1277 at O'Hare
Anchorage → Chicago → Denver
Timetable, Chicago time
23:24KD 214 from Anchorage at the gate
11:55AA 1277 to Denver leaves the gate
12 h 31 apart on the timetable, overnight
AA 1277 leaves 12 h 31 after KD 214 arrives on the timetable: more than half a day, so not a connection we count.