This Thematic Research Summary on Air Transport aims to provide the reader with a synthesis of results of completed European research projects and summarises the main relevant policy developments at EU level. The first part includes a brief overview of the scope of the theme and summarises the relevant main policy developments at EU level. The second part contains a synthesis of the main findings and policy implications from research projects in this area, and identifies the implications for further research. This is done separately for seven sub-themes identified in the aeronautics and air transport related research reported in this summary. The new TRS on Air Transport is now available for download from the Thematic publications section of the TRKC website.