where was the 4th plane headed on 9 11

The 4th plane on 9/11, United Airlines Flight 93, was headed toward Washington, D.C., with its likely intended target being either the United States Capitol Building or the White House. The hijackers planned to crash the plane into a federal government building in the national capital, with investigators leaning toward the Capitol as the most probable target. The passengers' attempt to retake control caused the hijackers to crash the plane into a field near Shanksville, Pennsylvania, preventing it from reaching its target