but many people already do offer a low cost service from various uk airports to sfb - its called a charter flight! anyway, pax figures for uk tourists to florida had declined quite significantly in the past few years, so much so that many tour operators have cut capacity by a large ammount, and so less seats. may pick up again - who knows, but if existing low-cost charter flights go with empty seats and you can fly scheduled (if you shop around) trans atlantic to nyc, bos, mia for around £200 - doupt there is much of a gap,easy can fill.