From Logan International Airport in Boston, American Airlines Flight 11 departs for Los Angeles International Airport carrying 81 passengers and 11 crew members.
Inbound United Airlines Flight 175 departs Logan International Airport in Boston with 56 passengers and nine crew members bound for Los Angeles International Airport.
Over central Massachusetts, and Flight 11 is hijacked. Five hijackers were on board.
As American Airlines Flight 77 departs from Washington Dulles International Airport, the Boeing 757 has 58 passengers and 6 crew members.
A Boeing 757 operated by United Airlines departs from Newark International Airport for San Francisco International Airport with 37 passengers and 7 crew members.
A hijacking occurs above southeast New Jersey on Flight 175. There were five hijackers.
As Flight 11 crashes into Floor 93 and Floor 99 of the World Trade Center's North Tower (1 WTC), it strikes the north face of the building. The 92 people on board were all killed.
An aircraft hijacking occurs over southern Ohio. There were five hijackers.
Between floors 77 and 85 of the South Tower (2 WTC) of the World Trade Center, Flight 175 crashes. The 65 people on board were all killed.
The hijacking of Flight 93 takes place over northern Ohio. Four hijackers were on board.
Flight 77 crashed into the northwest corner of The Pentagon on September 11, 2001. Sixty-four passengers were killed on the flight.
Airspace in the United States had been shut down; all aircraft that were attempting to fly into the country landed at the nearest airport.
56 minutes after the impact of Flight 175, the South Tower collapses at the World Trade Center.
Flight 93 hijackers crash the plane in Somerset County, Pennsylvania. Passengers were resisting hijackers after learning about the World Trade Center and Pentagon crashes, claiming the lives of all 44 people aboard.
1 hour and 42 minutes after the impact of Flight 11, the North Tower of the World Trade Center collapses. Also destroyed was the Marriott Hotel at the base of the two towers.
The fire caused the western five floors of the Pentagon to collapse.