American Airlines Group, the owner of American Airlines, said U.S. Airways Group and its airline U.S. Airways ceased to exist as a separate entity effective Dec. 30, 2015. The change is merely an administrative step and does not affect the company’s employees or customers, American Airlines spokesman Matt Miller told Reuters. “With US Airways merged into American Airlines and U.S. Airways Group merged into American Airlines Group, all of their obligations (including debts and liabilities) become the obligations of American Airlines and American Airlines Group, respectively,” Miller said.