UA 981 then BR 643 at O'Hare
Dublin → Chicago → Anchorage
Timetable, Chicago time
13:20UA 981 from Dublin at the gate
11:55BR 643 to Anchorage leaves the gate
22 h 35 apart on the timetable, overnight
BR 643 leaves 22 h 35 after UA 981 arrives on the timetable: more than half a day, so not a connection we count.