UA 3909 then CM 2439 at San Francisco
Chicago O'Hare → San Francisco → Fresno
Timetable, San Francisco time
22:20UA 3909 from Chicago O'Hare at the gate
18:40CM 2439 to Fresno leaves the gatealso NZ 9217
20 h 20 apart on the timetable, overnight
CM 2439 leaves 20 h 20 after UA 3909 arrives on the timetable: more than half a day, so not a connection we count.