WN 4475 then WN 149 at Phoenix
Chicago Midway → Phoenix → Las Vegas
Timetable, Phoenix time
12:00WN 4475 from Chicago Midway at the gate
08:35WN 149 to Las Vegas leaves the gate
20 h 35 apart on the timetable, overnight
WN 149 leaves 20 h 35 after WN 4475 arrives on the timetable: more than half a day, so not a connection we count.