DL 4057 then DL 2253 at LAX
Phoenix Sky Harbor → Los Angeles → Las Vegas
Timetable, Los Angeles time
08:00DL 4057 from Phoenix Sky Harbor at the gate
07:35DL 2253 to Las Vegas leaves the gate
23 h 35 apart on the timetable, overnight
DL 2253 leaves 23 h 35 after DL 4057 arrives on the timetable: more than half a day, so not a connection we count.