Times (UK): Airlines and tour operators have reacted angrily to this week’s pre-Budget announcement, warning that plans to increase green taxes on the ‘cash cow’ of travel will hasten the end of low-cost flights. Alistair Darling, the Chancellor, said on Monday that air passenger duty charges on long-haul flights would more than double by 2010, making a trip to Australia £45 more expensive in economy class and £90 more in business. Meanwhile, the cost of European flights will also rise, with …