BR 646 then UA 2106 at O'Hare
Anchorage → Chicago → San Francisco
Timetable, Chicago time
06:51BR 646 from Anchorage at the gate
21:57UA 2106 to San Francisco leaves the gate
15 h 06 apart on the timetable
UA 2106 leaves 15 h 06 after BR 646 arrives on the timetable: more than half a day, so not a connection we count.