US President George W Bush's arrival in Germany on Wednesday has upset Lufthansa which say it may lose millions of euros as a result of Air Force One landing at Frankfurt airport. The German airline is considering suing federal agencies for damages after the president's arrival disrupted 92 outgoing flights and 86 income flights, causing delays for as many as 17,000 passengers. It also had to cancel 77 short and medium-distance flights, affecting about 5,000 passengers. A company spokesperson said the airline was looking into its legal options. The spokesperson explained that the company did not plan to pursue Germany's air traffic controllers organization or the airport authority but wanted instead to see if it was possible to sue the German federal agencies that gave the orders. Instead of half an hour, the arrival of President Bush on the German leg of his European tour took the best part of an hour, Lufthansa said. During that time, restrictions were put on planes taxiing, taking off and landing.