CA 1017 then UA 6080 at O'Hare
Anchorage → Chicago → Rapid City
Timetable, Chicago time
19:05CA 1017 from Anchorage at the gate
17:00UA 6080 to Rapid City leaves the gate
21 h 55 apart on the timetable, overnight
UA 6080 leaves 21 h 55 after CA 1017 arrives on the timetable: more than half a day, so not a connection we count.