K4 557 then UA 762 at O'Hare
Anchorage → Chicago → San Francisco
Timetable, Chicago time
14:14K4 557 from Anchorage at the gate
11:52UA 762 to San Francisco leaves the gate
21 h 38 apart on the timetable, overnight
UA 762 leaves 21 h 38 after K4 557 arrives on the timetable: more than half a day, so not a connection we count.