TK 9588 then B6 216 at San Francisco
Portland (Oregon) → San Francisco → New York JFK
Timetable, San Francisco time
15:15TK 9588 from Portland (Oregon) at the gate
12:24B6 216 to New York JFK leaves the gatealso EY 8037
21 h 09 apart on the timetable, overnight
B6 216 leaves 21 h 09 after TK 9588 arrives on the timetable: more than half a day, so not a connection we count.