LONDON & NEW YORK--(BUSINESS WIRE)--Following its UK launch in February, Returnjet announces it is now networking every private plane available for charter across North America on to its online hub by the end of this year. To this effect It has appointed a Director of Business Development for North America, Christian Betke, and opened offices in White Plains, New York. Within just 12 weeks of launch, over two thirds of the UK’s private charter fleet have contracted to the world’s first ever sys