According to a new report by Frost & Sullivan, escalating fuel prices and the global economic downturn has forced airports to adopt alternative revenue channels for growth.
Non-aeronautical revenues have contributed to higher percentages of total airport earnings during the slowing economy.
While some airports have continued to see passenger traffic and revenues grow, others have reported growth aided by alternative revenue streams, such as code sharing, route optimisation, collaboration, green initiatives and development of their landside businesses.
About $100bn is expected to be spent on airport development and expansion works in South-East Asia, China and India.
Over 300 airports are expected to be developed within the next ten years in China and India.