BR 646 then UA 5582 at O'Hare
Anchorage → Chicago → Nashville
Timetable, Chicago time
17:10BR 646 from Anchorage at the gate
14:05UA 5582 to Nashville leaves the gate
20 h 55 apart on the timetable, overnight
UA 5582 leaves 20 h 55 after BR 646 arrives on the timetable: more than half a day, so not a connection we count.