 The Prince of Wales and Duchess of Cornwall flew the BAe 146 to Madrid and Lisbon in March 2011 (4 flight hours), and one non-itemised flight was taken on a BAe 125 (1 flight hour).Some criticism is aimed at expensive charters that are employed for visits of the Prince of Wales for trips that some believe are not critical to his role as British heir apparent.Two of the most expensive charters were for visits to South America in March 2009 (£660,594) for a tour related to the Prince's ecological concerns, and a trip to Japan and Indonesia in October and November 2008 that cost £665,674.