A rise in Air Passenger Duty (APD) came into force Nov. 1, leaving airlines worried that holidays will become "unaffordable for many" in 2011.

The government has cited environmental reasons for the rise in APD. Many airline executives have publicly criticised the rise, including British Airways, easyJet, and Ryanair.

The APD is divided into four different bands, the tax is set according to the distance of a country's capital city from London; up to 2000 miles, 2001-4000 miles, 4001-6000 miles, and more than 6000 miles.

UK skiers flying to Europe will fall within band A (0-2000 miles) which means a nine-percent increase: an extra £12 to fly economy; £24 to fly premium.

UK skiers flying to North America are in band B (2001-4000 miles) meaning a whopping 33-percent increase: £60 for economy; £120 for premium.

easyJet's Chief Executive Carolyn McCall said: "The Government should reform Air Passenger Duty to make it fairer for the public and to encourage greener behaviour by airlines. APD is already higher in the UK than anywhere else in Europe and UK passengers and the environment would be better off if the tax was shifted from per person to a per plane tax."

Skiers considering getting to the Alps by car or rail, may be interested in reading OnTheSnow's Economy Drive: To The Alps By Car