In academic literature, only limited research has been undertaken in exploring the value creation of B2B (Business-to-Business) e-Marketplace models in the aviation industry. The aim of this publication is a theoretical analysis to explore whether or not B2B e-Marketplaces can make a contribution to the achievement of competitive advantage in procurement in the aviation industry. The research focuses on the potential of B2B e-Marketplaces in terms of improving an air line 's competitiveness in its procurement value chain and discusses empirical results from a survey among international e-Marketplace / portal operators.