QF 3657 then UA 794 at San Francisco
New York JFK → San Francisco → San Diego
Timetable, San Francisco time
23:59QF 3657 from New York JFK at the gate
20:45UA 794 to San Diego leaves the gatealso CM 2510, LX 3272, AC 4536, VA 8428
20 h 46 apart on the timetable, overnight
UA 794 leaves 20 h 46 after QF 3657 arrives on the timetable: more than half a day, so not a connection we count.