Bloomberg American Airlines Group Inc. agreed to acquire a minority stake in China Southern Airlines Co. for $200 million, cementing a partnership between the top carriers in the U.S. and Asia. China Southern will issue 270.6 million shares in its Hong Kong-listed company to the world’s largest airline at HK$5.74 apiece, the Guangzhou-based carrier said in a stock exchange …

  Bloomberg Frontier Airlines Inc., the no-frills US carrier whose aircraft feature animals on the tails, is aiming to go public as soon as the second quarter, reports said. JPMorgan Chase & Co., Deutsche Bank AG, Citigroup Inc. and Evercore Partners Inc. are the leading underwriters on the deal, said the people, who asked not to be identified because the …

  Bloomberg Facebook Inc. is making a dramatic change to the social network’s mobile application, letting people post pictures and videos that disappear after 24 hours. Dramatic, but unsurprising—it’s the fourth time the company has added such a feature to its apps. And it’s a tool that was invented by its smaller, newly public competitor: Snap Inc., whose Snapchat lets …