NZ 9172 then AA 597 at San Francisco
Eugene → San Francisco → Chicago O'Hare
Timetable, San Francisco time
21:05NZ 9172 from Eugene at the gate
17:22AA 597 to Chicago O'Hare leaves the gatealso QF 4712
20 h 17 apart on the timetable, overnight
AA 597 leaves 20 h 17 after NZ 9172 arrives on the timetable: more than half a day, so not a connection we count.