QF 3657 then AA 939 at San Francisco
New York JFK → San Francisco → Dallas-Fort Worth
Timetable, San Francisco time
23:59QF 3657 from New York JFK at the gate
23:23AA 939 to Dallas-Fort Worth leaves the gatealso CZ 1632
23 h 24 apart on the timetable, overnight
AA 939 leaves 23 h 24 after QF 3657 arrives on the timetable: more than half a day, so not a connection we count.