American Airlines Flight 77 was a scheduled American Airlines domestic transcontinental passenger flight from Washington Dulles International Airport in Dulles , Virginia , to Los Angeles International Airport in Los Angeles , California . The Boeing 757-223 aircraft serving the flight was hijacked by five men affiliated with al-Qaeda on September 11 , 2001 , as part of the September 11 attacks . They deliberately crashed the plane into the Pentagon in Arlington County , Virginia , near Washington , D.C. , killing all 64 people on board , including the five hijackers and six crew , as well as 125 people in the building
September 11 attacks
September 11 attacks
American Airlines Flight 77