TK 9588 then B6 416 at San Francisco
Portland (Oregon) → San Francisco → New York JFK
Timetable, San Francisco time
15:15TK 9588 from Portland (Oregon) at the gate
14:55B6 416 to New York JFK leaves the gatealso SQ 1548
23 h 40 apart on the timetable, overnight
B6 416 leaves 23 h 40 after TK 9588 arrives on the timetable: more than half a day, so not a connection we count.