BR 646 then UA 1840 at O'Hare
Anchorage → Chicago → Hartford
Timetable, Chicago time
17:10BR 646 from Anchorage at the gate
14:36UA 1840 to Hartford leaves the gate
21 h 26 apart on the timetable, overnight
UA 1840 leaves 21 h 26 after BR 646 arrives on the timetable: more than half a day, so not a connection we count.