AA 3079 then TK 9591 at San Francisco
Philadelphia → San Francisco → Las Vegas
Timetable, San Francisco time
19:28AA 3079 from Philadelphia at the gatealso QF 4594, BA 5439
19:00TK 9591 to Las Vegas leaves the gate
23 h 32 apart on the timetable, overnight
TK 9591 leaves 23 h 32 after AA 3079 arrives on the timetable: more than half a day, so not a connection we count.