The Watertown airport has been much busier since it started offering direct air service to Chicago rather than Albany just over two years ago. Now, the merger between American Airlines and U.S. Airways is causing a switch in destination again.
Direct flights to Philadelphia will replace those to Chicago beginning May 8.
A regional carrier for American Airlines now provides the Chicago service. American merged with U.S. Airways in December. Philadelphia, a hub for U.S. Airways, is closer, and therefore a cheaper major hub for the airline to get to from Watertown.