American Airlines and US Airways poised 'to merge' 14 February 2013 Last updated at 01:59 American Airlines and US Airways are planning to form one the world's biggest airlines, according to media and newswire sources. The two boards are said by a number of unnamed sources to have met on Wednesday to approve the merger. A formal announcement is expected on Thursday. The merger will bring American Airlines closer in value to rival Delta Airlines, with an estimated market valuation of $11bn (£7bn). The lion's share of the new company will be owned by American Airline's bankruptcy creditors, who will have 72% of the company, the reports say. American Airline's parent company filed for bankruptcy protection more than a year ago. The carrier will be run under the American Airlines brand.