TK 9588 then QR 3410 at San Francisco
Portland (Oregon) → San Francisco → San Diego
Timetable, San Francisco time
15:15TK 9588 from Portland (Oregon) at the gate
11:53QR 3410 to San Diego leaves the gate
20 h 38 apart on the timetable, overnight
QR 3410 leaves 20 h 38 after TK 9588 arrives on the timetable: more than half a day, so not a connection we count.