AA 2260 then WN 149 at Phoenix
Boston → Phoenix → Las Vegas
Timetable, Phoenix time
10:39AA 2260 from Boston at the gate
08:35WN 149 to Las Vegas leaves the gate
21 h 56 apart on the timetable, overnight
WN 149 leaves 21 h 56 after AA 2260 arrives on the timetable: more than half a day, so not a connection we count.