Members of the Royal Family made 47 official trips costing at least £10,000 each in the last tax year, Buckingham Palace accounts reveal.
The total travel bill of £4.2 million included £1.5 million on helicopter flights, £1.8 million on plane journeys, £700,000 on rail trips and £200,000 travelling by car.
Major visits to South Africa and the Middle East by the Prince of Wales contributed a large amount to the total bill.
Some of the other royal trips in 2013-14 include:
:: £10,092 on a return chartered flight for the Duke of York to travel to Munster in Germany to mark the withdrawal of British forces in July last year.
:: £22,623 on a return trip by the Queen on the Royal Train from Windsor to Oxenholme in Cumbria to meet members of the Duke of Lancaster's Regiment in July last year.
:: £10,559 on a return trip by chartered plane by the Duke of York from Northolt to Edinburgh to take the salute at the homecoming parade of the Royal Highland Fusiliers, 2nd Battalion The Royal Regiment
of Scotland in October last year.
:: £46,198 on chartered flights taking the Earl and Countess of Wessex on a Foreign Office trip to Sofia in Bulgaria, Bucharest in Romania and Ljubljana in Slovenia in June last year.