CV 83 then UA 1842 at O'Hare
Anchorage → Chicago → Sioux Falls
Timetable, Chicago time
19:47CV 83 from Anchorage at the gate
19:45UA 1842 to Sioux Falls leaves the gate
23 h 58 apart on the timetable, overnight
UA 1842 leaves 23 h 58 after CV 83 arrives on the timetable: more than half a day, so not a connection we count.