CA 8443 then UA 929 at O'Hare
Anchorage → Chicago → London
Timetable, Chicago time
16:59CA 8443 from Anchorage at the gate
15:45UA 929 to London leaves the gate
22 h 46 apart on the timetable, overnight
UA 929 leaves 22 h 46 after CA 8443 arrives on the timetable: more than half a day, so not a connection we count.