China Southern Airlines rolled out an "all you can fly" international pass Tuesday for its frequent flyers, expanding an unlimited domestic flights program launched three years ago.
Carriers hope step will fill planes during slow season

A China Southern Airlines plane lands at Guangzhou Baiyun International Airport on Oct. 26.
China Southern Airlines rolled out an "all you can fly" international pass Tuesday for its frequent flyers, expanding an unlimited domestic flights program launched three years ago.