the departure of Hahn Air Lines, InterSky starts relocate its operational base to Friedrichshafen Airport in Germany, which was not fully utilized in Bern. Operations in FDH were profitable from day one, so the airline decided in 2005 to withdraw entirely from Bern and to relocate remaining flight operations to Friedrichshafen. Afterwards, InterSky was the largest airline in Friedrichshafen. In 2010, it was the sixth largest low-fare airline in Germany in terms of flight movements. In October 2009, the airline transported its millionth passenger. In 2010, InterSky carried 250,000 passengers, more than ever before in the company's history. As of 2010, the airline had 110 employees. In October 2010, InterSky announced it was ending its long-running route from Friedrichshafen to Cologne due to the heavy competition from Germanwings which had started flying the same route a few months earlier. InterSky also postponed plans to add a fifth aircraft to the fleet. In July 2011 Intersky announced that Renate Moser and Rolf Seewald were to take over operative management after four years' absence. Claus Bernatzik, Renate Moser's son, left the company by end of the year. In August 2012 it was announced that InterSky had ordered two ATR 72-600s. The two aircraft were scheduled to be delivered in December 2012 and March 2013. These aircraft became the first ATRs to be operated by an Austrian carrier. In the same month the airline also announced plans to open a new base at Hamburg Airport. The plan was cancelled in October 2012, after OLT Express Germany also announced plans to fly between Karlsruhe/Baden-Baden and Hamburg. Since OLT Express Germany filed for bankruptcy shortly afterwards, InterSky started operating the route in March 2013 on a wet-lease contract with Avanti Air. It stopped flying the route in January 2014 after Germanwings announced plans to start the same route from spring 2014. Final years In May 2015, InterSky announced plans to open its second base at Memmingen Airport by October 2015 consisting of one aircraft, adding a new route to Cologne and increasing frequencies on existing services to Berlin and Hamburg. Later, the plan was changed to use a triangled route Friedrichshafen - Memmingen - Cologne/Bonn instead of basing an aircraft in Memmingen. On 27 October 2015, InterSky announced drastic cuts to their Friedrichshafen-Memmingen-Cologne route which had resumed just three weeks earlier. Instead of two daily flights only two flights a week were to continue due