Lin Shuyan and his family laugh happily hold their boarding passes for a free flight home for Spring Festival at Ningbo Lishe International Airport in the port city of Ningbo, east China's Zhejiang Province January 4, 2010. The Zhejiang Federation of Trade Unions, Sichuan Federation of Trade Unions and Sichuan Airlines joined together to arrange three free charter flights from Hangzhou, Ningbo and Wenzhou to Chengdu to send the migrant workers who worked in Zhejiang back to their hometown Sichuan for Chinese New Year. [Photo/CFP]