F9 1447 then TK 9591 at San Francisco
Atlanta → San Francisco → Las Vegas
Timetable, San Francisco time
20:40F9 1447 from Atlanta at the gate
19:00TK 9591 to Las Vegas leaves the gate
22 h 20 apart on the timetable, overnight
TK 9591 leaves 22 h 20 after F9 1447 arrives on the timetable: more than half a day, so not a connection we count.