TK 9588 then WN 1997 at San Francisco
Portland (Oregon) → San Francisco → Las Vegas
Timetable, San Francisco time
15:15TK 9588 from Portland (Oregon) at the gate
13:30WN 1997 to Las Vegas leaves the gate
22 h 15 apart on the timetable, overnight
WN 1997 leaves 22 h 15 after TK 9588 arrives on the timetable: more than half a day, so not a connection we count.