The Irish low-cost carrier, Ryanair, has announced its intention to sue the European Commission for not having taken action against alleged State aid to some of its rival airlines. More than a year ago, Ryanair complained to the Commission that aid involving hundreds of millions of euros was granted by the French, German, Italian and Greek Governments to Air France, Lufthansa, Alitalia and Olympic Airways respectively. In the complaints, Ryanair claims that the aid was given in the form of reduced airport fees, unprofitable airport investments and restructuring aid. Should Ryanair’s action before the Court of First Instance be successful, the Commission will be forced to open a formal investigation into the contested grants.