K4 221 then UA 660 at O'Hare
Anchorage → Chicago → San Diego
Timetable, Chicago time
13:41K4 221 from Anchorage at the gate
08:50UA 660 to San Diego leaves the gate
19 h 09 apart on the timetable, overnight
UA 660 leaves 19 h 09 after K4 221 arrives on the timetable: more than half a day, so not a connection we count.