The FBI says Satam al-Suqami first arrived in the U.S. on April 23, 2001, with a visa that allowed him to remain in the country until May 21. However, at least five residents of the Spanish Trace Apartments claim to recognize the photographs of both Suqami and Salem al-Hazmi as living in the San Antonio complex earlier in 2001. Interestingly however, these residents and several others who claim to have known the hijackers, claim that the FBI photographs of Suqami and Hazmi are reversed. Other reports conflictingly suggested that Suqami was staying with Waleed al-Shehri in Hollywood, Florida and rented a black Toyota Corolla from Alamo Rent-A-Car agency. On May 19, Suqami and Waleed al-Shehri took a flight from Fort Lauderdale to Freeport, Bahamas where they had reservations at the Princess Resort. Lacking proper documentation however, they were stopped upon landing, and returned to Florida the same day and rented a red Kia Rio from Avis Rent-A-Car agency. He was one of nine hijackers to open a SunTrust bank account with a cash deposit around June 2001, and on July 3 he was issued a Florida State Identification Card. Around this time, he also used his Saudi license to gain a Florida drivers’ license bearing the same home address as Wail al-Shehri. (A Homing Inn in Boynton Beach). Despite this, the 9/11 Commission claims that Satam al-Suqami was the only hijacker to not have any US identification.

During the summer, Satam al-Suqami and both Wail and Waleed al-Shehri purchased one month passes to a Boynton Beach gym owned by Jim Woolard. (Mohamed Atta and Marwan al-Shehhi also reportedly trained at a gym owned by Woolard, in Delray Beach.) Known as Azmi during the preparations, Suqami was called one of the “muscle” hijackers, who were not expected to act as pilots. CIA director George Tenet later said that they “probably were told little more than that they were headed for a suicide mission inside the United States.” On September 10, 2001, Suqami shared a room at the Milner Hotel in Boston with three of the Flight 175 hijackers, Marwan al-Shehhi, Fayez Banihammad, and Mohand al-Shehri. On the day of the attacks, Suqami checked in at the flight desk using his Saudi passport, and boarded American Airlines Flight 11. At Logan International Airport, he was selected by CAPPS, which required his checked bags to undergo extra screening for explosives and involved no extra screening at the passenger security checkpoint. An FAA memo, circulated in February 2002, claimed that Suqami shot passenger Daniel M. Lewin (Seat 9B), co-founder of Akamai Technologies and a former member of the Israeli Sayeret Matkal, for attempting to foil the hijacking. While based on the frantic phonecall received from a stewardess of the flight, the report has been a matter of some controversy, since both the FAA and FBI have strongly denied the presence of firearms or guns smuggled aboard. It is now believed that Suqami stabbed Lewin as he attempted to intervene in the hijacking.