BR 642 then UA 1251 at O'Hare
Anchorage → Chicago → Madison
Timetable, Chicago time
09:02BR 642 from Anchorage at the gate
22:05UA 1251 to Madison leaves the gate
13 h 03 apart on the timetable
UA 1251 leaves 13 h 03 after BR 642 arrives on the timetable: more than half a day, so not a connection we count.