AA 2315 then WN 149 at Phoenix
Boston → Phoenix → Las Vegas
Timetable, Phoenix time
09:22AA 2315 from Boston at the gate
08:35WN 149 to Las Vegas leaves the gate
23 h 13 apart on the timetable, overnight
WN 149 leaves 23 h 13 after AA 2315 arrives on the timetable: more than half a day, so not a connection we count.