American Airlines and US Airways have completed their long awaited merger to create the world's biggest airline. It follows AMR Corporation, the parent company of American Airlines, emerging from its 2011 bankruptcy filing. Shares in the new company soared aftermaking their debut on the Nasdaq exchange under the stock symbol AAL. The merger had previously been blocked by the US Justice Department over concerns about competition in the sector.The new airline, which will be known as American Airlines, will provide nearly 6,700 daily flights to more than 330 destinations in more than 50 countries. It will have a combined workforce of over 100,000 employees.