QF 3657 then CM 1471 at San Francisco
New York JFK → San Francisco → San Luis Obispo
Timetable, San Francisco time
23:59QF 3657 from New York JFK at the gate
21:02CM 1471 to San Luis Obispo leaves the gatealso UA 5446
21 h 03 apart on the timetable, overnight
CM 1471 leaves 21 h 03 after QF 3657 arrives on the timetable: more than half a day, so not a connection we count.