AF 2152 then UA 1389 at San Francisco
New York JFK → San Francisco → San Diego
Timetable, San Francisco time
01:15AF 2152 from New York JFK at the gate
22:42UA 1389 to San Diego leaves the gatealso CM 2511, AC 4292, VA 8426, LH 9372, NZ 9584
21 h 27 apart on the timetable
UA 1389 leaves 21 h 27 after AF 2152 arrives on the timetable: more than half a day, so not a connection we count.