AC 5269 then UA 3900 at San Francisco
Chicago O'Hare → San Francisco → Hong Kong
Timetable, San Francisco time
15:35AC 5269 from Chicago O'Hare at the gatealso NZ 9325
07:00UA 3900 to Hong Kong leaves the gate
15 h 25 apart on the timetable, overnight
UA 3900 leaves 15 h 25 after AC 5269 arrives on the timetable: more than half a day, so not a connection we count.