UA 5761 then BR 643 at O'Hare
Nashville → Chicago → Anchorage
Timetable, Chicago time
13:15UA 5761 from Nashville at the gate
11:25BR 643 to Anchorage leaves the gate
22 h 10 apart on the timetable, overnight
BR 643 leaves 22 h 10 after UA 5761 arrives on the timetable: more than half a day, so not a connection we count.