CV 251 then AA 873 at O'Hare
Anchorage → Chicago → Atlanta
Timetable, Chicago time
19:00CV 251 from Anchorage at the gate
07:17AA 873 to Atlanta leaves the gate
12 h 17 apart on the timetable, overnight
AA 873 leaves 12 h 17 after CV 251 arrives on the timetable: more than half a day, so not a connection we count.