Singapore has inked an open skies deal with Barbados that gives carriers full rights to operate as many flights as they want between the two nations. Without strong demand for air services between the two points, it is unlikely the agreement will lead to actual flights, industry analysts said. Still, the deal sealed on Wednesday between Transport Minister Lui Tuck Yew and Ms Maxine McClean, Foreign Affairs and Foreign Trade Minister of Barbados, signifies Singapore's commitment to liberal skies, said the analysts.