QR 7985 then B6 503 at JFK
Washington National → New York → San Juan
Timetable, New York time
07:27QR 7985 from Washington National at the gate
19:30B6 503 to San Juan leaves the gate
12 h 03 apart on the timetable
B6 503 leaves 12 h 03 after QR 7985 arrives on the timetable: more than half a day, so not a connection we count.