High Quality Content by WIKIPEDIA articles! United Airlines Flight 175 was United Airlines` daily scheduled morning transcontinental flight, from Logan International Airport in Boston, Massachusetts, to Los Angeles International Airport in Los Angeles, California. On Tuesday, September 11, 2001, the aircraft flying this route—a Boeing 767–222—was hijacked by five al-Qaeda terrorists and deliberately crashed into the South Tower of the World Trade Center in New York City as part of the September 11 attacks.