BR 646 then UA 2142 at O'Hare
Anchorage → Chicago → Nashville
Timetable, Chicago time
17:10BR 646 from Anchorage at the gate
14:05UA 2142 to Nashville leaves the gate
20 h 55 apart on the timetable, overnight
UA 2142 leaves 20 h 55 after BR 646 arrives on the timetable: more than half a day, so not a connection we count.