CV 251 then AA 5580 at O'Hare
Anchorage → Chicago → Knoxville
Timetable, Chicago time
19:00CV 251 from Anchorage at the gate
08:12AA 5580 to Knoxville leaves the gate
13 h 12 apart on the timetable, overnight
AA 5580 leaves 13 h 12 after CV 251 arrives on the timetable: more than half a day, so not a connection we count.