Airlines could be banned from using misleading advertisements for cheap tickets and would have to include all "hidden extras" under rules expected to to be outlined by the European Commission today.

It is thought Transport Commissioner Jacques Barrot wants a set of rules to guarantee price transparency across Europe so passengers can compare tickets easily and know that the price they see is the price they will pay. Dublin-based Ryanair was recently accused of misstating taxes and airport passenger fees on its European routes. However, the no-frills airline denied the claims.