AA 1191 then DL 1152 at Philadelphia
Las Vegas → Philadelphia → Atlanta
Timetable, Philadelphia time
06:47AA 1191 from Las Vegas at the gate
06:30DL 1152 to Atlanta leaves the gate
23 h 43 apart on the timetable, overnight
DL 1152 leaves 23 h 43 after AA 1191 arrives on the timetable: more than half a day, so not a connection we count.