Chinese are also discussing holidays to what they call the "clean-air destinations" of Tibet, Hainan and Fujian.
Chinese microblogs and parenting forums are monopolised by discussions about the best air filters (sales of the top brands have tripled over the last year alone) and chatter about holidays to "clean-air destinations" like Fujian, Hainan and Tibet.
Members of the European service will pay £2500 a month, after an initiation fee, to fly an unlimited number of times between Surf Air's destinations.
With a North American open skies agreement that began to take effect five years ago, the number of Americans flying to Canada increased by almost 60percentt during the 1990's, putting Canada on a par with Britain as Americans' favorite air travel destination after Mexico.
But Melinda Novak, a co-owner of the Long Island Game Farm Wildlife Park and Children's Zoo, in Manorville, said that zoos were up against deep-seated shifts in taste, as air-conditioned destinations like Chuck E. Cheese's, a chain of video-game-themed restaurants, vie for customers.
The Vegas strip is still an air-travel destination, so it still draws from markets unaffected by new casinos in local communities.
"Then, when the Internet came along, we said, 'Why not build software that facilitates this type of demand for complex international air fares and destinations, and makes it as affordable in many cases as a single destination?' " AirTreks designs technology that searches worldwide air fares and devises the best price for multiple destinations, he said.
There is international air service to destinations such as Lisbon, Boston, Rome, Paris, Brazil, and points in western Africa.
Canada's First Air flies to destinations including the Arctic Circle – far beyond the reach of conventional radar.
While many passengers will still struggle to reach their destinations, air traffic is predicted to be close to 100 percent on Thursday.
The friend, Xu Ming, from the northeastern city of Dalian, where Mr Bo was once a top official, also paid for international air tickets to destinations such as Europe, Africa and South America, and expensive gifts, including a Segway for the couple's son Bo Guagua.
