CA 1017 then UA 929 at O'Hare
Anchorage → Chicago → London
Timetable, Chicago time
16:01CA 1017 from Anchorage at the gate
15:45UA 929 to London leaves the gate
23 h 44 apart on the timetable, overnight
UA 929 leaves 23 h 44 after CA 1017 arrives on the timetable: more than half a day, so not a connection we count.