CV 251 then AA 5001 at O'Hare
Anchorage → Chicago → Birmingham (Alabama)
Timetable, Chicago time
19:00CV 251 from Anchorage at the gate
10:30AA 5001 to Birmingham (Alabama) leaves the gate
15 h 30 apart on the timetable, overnight
AA 5001 leaves 15 h 30 after CV 251 arrives on the timetable: more than half a day, so not a connection we count.