CI 5234 then UA 1811 at O'Hare
Anchorage → Chicago → San Francisco
Timetable, Chicago time
19:25CI 5234 from Anchorage at the gate
13:30UA 1811 to San Francisco leaves the gate
18 h 05 apart on the timetable, overnight
UA 1811 leaves 18 h 05 after CI 5234 arrives on the timetable: more than half a day, so not a connection we count.