BR 646 then UA 2684 at O'Hare
Anchorage → Chicago → Atlanta
Timetable, Chicago time
17:10BR 646 from Anchorage at the gate
10:31UA 2684 to Atlanta leaves the gate
17 h 21 apart on the timetable, overnight
UA 2684 leaves 17 h 21 after BR 646 arrives on the timetable: more than half a day, so not a connection we count.