CI 5234 then UA 1577 at O'Hare
Anchorage → Chicago → San Francisco
Timetable, Chicago time
19:25CI 5234 from Anchorage at the gate
14:30UA 1577 to San Francisco leaves the gate
19 h 05 apart on the timetable, overnight
UA 1577 leaves 19 h 05 after CI 5234 arrives on the timetable: more than half a day, so not a connection we count.