TK 9588 then MX 259 at San Francisco
Portland (Oregon) → San Francisco → Cincinnati
Timetable, San Francisco time
15:15TK 9588 from Portland (Oregon) at the gate
12:46MX 259 to Cincinnati leaves the gate
21 h 31 apart on the timetable, overnight
MX 259 leaves 21 h 31 after TK 9588 arrives on the timetable: more than half a day, so not a connection we count.