Three Chinese airlines will buy a combined 95 Airbus aircraft for a total list price of about $17.8 billion, as carriers in the world's second-largest aviation market push to expand capacity and modernise their fleets with more fuel-efficient jets. Air China and its unit Shenzhen Airlines will buy 55 Airbus aircraft for a total list price of $12.4 billion, while Hainan Airlines separately agreed to purchase 40 A320neo-family jets for a list price of up to $5.4 billion, according to filings with the Shanghai Stock Exchange.