The team of hijackers on United Airlines Flight 175 was led by Marwan al-Shehhi , from the United Arab Emirates . Shehhi obtained a commercial pilot 's license while training in south Florida , along with Flight 11 hijacker and plot coordinator , Mohamed Atta . The muscle hijackers on Flight 175 included Fayez Banihammad , from the UAE , and three Saudis : brothers Hamza al-Ghamdi and Ahmed al-Ghamdi , as well as Mohand al-Shehri . On August 13 , 2001 , Marwan al-Shehhi purchased two four-inch pocket knives from a Sports Authority store in Boynton Beach , Florida , while Banihammad bought a two-piece snap knife set at a Wal-Mart , and Hamza al-Ghamdi bought a Leatherman Wave multi-tool
Flight 11
American Airlines Flight 11
United Airlines Flight 175