Supply and demand
BA Connect were doing OK on all the previously mentioned routes with a 49 seat aircaft and good load factors, regularity and service. Then Jet2 came in, undercut them with rediculously unsustainable prices, raised the load factor a bit but not the yield. They could not fill a 737 never mind a 757 or make either pay. BA Connect had to pull off the routes which have now been dumped by Jet2. Winner - nobody, loser Jet2, BA Connect and primarily the passenger. Flybe may have a go at some of these routes when they get their fleets sorted out. Perhaps the passengers can also learn a lesson here - a bit of customer loyalty can keep a route in existance. I doubt it though, generally the cheapest ticket wins.