BR 646 then UA 1706 at O'Hare
Anchorage → Chicago → Phoenix
Timetable, Chicago time
17:10BR 646 from Anchorage at the gate
14:10UA 1706 to Phoenix leaves the gate
21 h apart on the timetable, overnight
UA 1706 leaves 21 h after BR 646 arrives on the timetable: more than half a day, so not a connection we count.