WN 4367 then UA 3900 at San Francisco
Chicago Midway → San Francisco → Hong Kong
Timetable, San Francisco time
12:30WN 4367 from Chicago Midway at the gate
07:00UA 3900 to Hong Kong leaves the gate
18 h 30 apart on the timetable, overnight
UA 3900 leaves 18 h 30 after WN 4367 arrives on the timetable: more than half a day, so not a connection we count.