Miami (MIA) is the closest, but most likely Ft. Lauderdale (FLL) has the cheapest flights.  MIA is 10 miles from the hotel and FLL is 25 miles.  You can use UBER or check out shuttles like SuperShuttle, and of course there are always taxis available.  If you are flying as a group, it may be worth looking into private car service.  Reach out to Jean if you need any help with this research.