Before we all get carried away, let me just point out that I simply took the destinations fron GCI's website. For some funny reason, they list, for example, BVA and IOM, but not ZRH and GVA.
So what routes - other than JER ans SOU - are served by Blue Islands nonstop from GCI? If I followed your exchange correctly, the only "non-local" nonstops from GCI are:
BRS, EXT, SOU, LGW, STN, BHX, MAN