BR 646 then UA 3483 at O'Hare
Anchorage → Chicago → Providence
Timetable, Chicago time
17:10BR 646 from Anchorage at the gate
11:59UA 3483 to Providence leaves the gate
18 h 49 apart on the timetable, overnight
UA 3483 leaves 18 h 49 after BR 646 arrives on the timetable: more than half a day, so not a connection we count.