Tigerair became the first Singaporean low-cost carrier to receive operating permits from the Chinese aviation authorities to fly to the southern Chinese cities of Haikou, Guangzhou and Shenzhen in an announcement on 21 February 2006. Ticket sales to these destinations commenced 24 February 2006, with the first flight to Shenzhen taking place on 15 April, to Haikou from 26 April and to Guangzhou from 27 April 2006. The airline has since indicated that the routes were highly popular, with increased flights to Haikou and Guangzhou less than three months since their launch.