United Airlines have a low roundtrip airfare travelling to and from Miami (MIA) and Las Vegas (LAS) for $138, including taxes and fees. This makes 1 stop.
Travel Availability:
Departs MIA: Mar 1, 7, 8, 14, 21, 22, 29
Departs LAS: Mar 1, 4, 7, 8, 14, 28, 29; Apr 4, 11
Book this on Priceline or United Airlines . To check for up-to-date availability, use google flight search.
My sample travel dates: Mar 1-4, 2017