TK 9588 then MU 8703 at San Francisco
Portland (Oregon) → San Francisco → New York JFK
Timetable, San Francisco time
15:15TK 9588 from Portland (Oregon) at the gate
14:05MU 8703 to New York JFK leaves the gate
22 h 50 apart on the timetable, overnight
MU 8703 leaves 22 h 50 after TK 9588 arrives on the timetable: more than half a day, so not a connection we count.