CV 251 then DL 2231 at O'Hare
Anchorage → Chicago → Salt Lake City
Timetable, Chicago time
19:00CV 251 from Anchorage at the gate
07:05DL 2231 to Salt Lake City leaves the gate
12 h 05 apart on the timetable, overnight
DL 2231 leaves 12 h 05 after CV 251 arrives on the timetable: more than half a day, so not a connection we count.