HOW about long haul to the caribean,one a month ,you would fill with no trouble.
Have you really thought that through?
One destination, once a month? That doesn't give you a lot of choice when it comes to day and time of departure. And how are you going to get back home? Wait a month for the next flight?
Meanwhile, just down the road at Gatwick, you have multiple daily departures to multiple destinations in the Caribbean.
You need to be realistic. Airlines and tour operators are going to be risk adverse in the present economic climate. If Manston struggles to support a Mediterrainean tour programme, long haul is a non starter.