9/11 Timeline

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Select oral histories and text courtesy of the National 9/11 Memorial & Museum

Hijackers Take Flight Training

Beginning 14 months before the hijackings, several of the terrorists take flight training courses. They acquire flight...

07/01/2000

5:45AM

Hijackers Pass Security Screening

Hijackers Mohammed Atta and Abdulaziz al-Omari pass through security at Portland International Jetport in Maine...

09/11/2001

7:35AM

Hijackers Board Flight 77

At Dulles International Airport, five hijackers board American Airlines Flight 77 bound for Los Angeles: Khalid al Midhar...

09/11/2001

7:59AM

Flight 11 Takes Off

American Airlines Flight 11 takes off fourteen minutes behind its scheduled departure time. Seventy-six passengers...

09/11/2001

8:14AM

Last Routine Communication with Flight 11

09/11/2001

8:14AM

Flight 175 Takes Off

United Flight 175 takes off from Logan Airport, fourteen minutes behind its scheduled departure time...

09/11/2001

8:16AM

Classes Begin in Shanksville

In a small town of Shanksville, Pennsylvania, classes begin at Shanksville-Stonycreek School, a yellow brick building housing 490 students in Pre-Kindergarten through Grade 12.

09/11/2001

8:19AM

Flight 11 Crew Contacts Airline

Veteran flight attendant Betty Ong alerts ground personnel to the hijacking of Flight 11...

09/11/2001

8:20AM

Flight 77 Takes Off

American Airlines Flight 77, en route to Los Angeles, departs Washington Dulles International Airport ten minutes delayed.

09/11/2001

8:21AM

Flight 11 Transponder Turned Off

09/11/2001

8:23AM

American Airlines Attempts to Contact Flight 11 Cockpit

09/11/2001

8:24AM

Flight 11 Hijacker Transmission

In an attempt to communicate with Flight 11's cabin, hijacker Mohammed Atta mistakenly contacts air traffic control. Minutes later...

09/11/2001

8:37AM

Air Traffic Control Contacts the Military

After hearing Atta's transmissions, air traffic controller Peter Zalewski contacts the Northeast Air Defense Sector (NEADS)...

09/11/2001

8:42AM

Last Radio Communication with Flight 175

09/11/2001

8:42AM

Flight 93 Takes Off

Scheduled to leave at 8:00am, within minutes of the other hijacked flights, United Airlines Flight 93 departs Newark International Airport...

09/11/2001

8:46AM

Crash of Flight 11

Hijackers crash Flight 11 into floors 93-99 of the World Trade Center's North Tower, killing everyone on board and hundreds...

09/11/2001

8:46AM

Emergency Services Mobilize

The Fire Department of New York (FDNY) and New York Police Department (NYPD) dispatch units to the World Trade Center within seconds...

09/11/2001

8:50AM

Alerting the President

White House Chief of Staff Andrew Card tells U.S. President George W. Bush that a plane has hit the World Trade Center. The President is...

09/11/2001

8:51AM

Last Routine Radio Communication for Flight 77

09/11/2001

8:54AM

United Airlines Attempts to Contact Flight 175's Cockpit

09/11/2001

8:55AM

Flight 77 Makes Unauthorized Turn South

09/11/2001

8:56AM

Flight 77 Transponder Turned Off

Flight 77's transponder, a transmitter that broadcasts the course, speed, and altitude of the airplane, is turned off at 8:56 am. The hijacker...

09/11/2001

8:59AM

On Board Flight 175

As hijacked Flight 175 approaches the World Trade Center, a crew member and several passengers manage to contact loved ones...

09/11/2001

9:00AM

Flight 77 Turns Eastward

Flight 77 turns eastward from a point near the junction of West Virginia, Ohio, and Kentucky. Hani Hanjour, who had received Federal Aviation...

09/11/2001

9:03AM

Crash of Flight 175

Hijackers crash Flight 175 into floors 77 to 85 of the World Trade Center's South Tower, killing everyone on the plane and hundreds inside...

09/11/2001

9:05AM

Alerting the President

U.S. President George W. Bush is on a pre-scheduled visit to a second-grade classroom in Sarasota, Florida when White House Chief of Staff...

09/11/2001

9:05AM

American Airlines Headquarters Aware that Flight 77 is Hijacked

09/11/2001

9:12AM

On Board Flight 77

Flight attendant Renee May calls her mother, Nancy, and tells her that Flight 77 has been hijacked. She says hijackers took control...

09/11/2001

9:15AM

FAA New York Center Advises NEADS

The Federal Aviation Administration's New York Center advises the North East Air Defense Sector...

09/11/2001

9:16AM

American Airlines Headquarters Aware that Flight 11 Crashed into the WTC

09/11/2001

9:20AM

United Airlines Headquarters Aware that Flight 175 Crashed into the WTC

09/11/2001

9:21AM

FAA Boston Center Advises NEADS

The Federal Aviation Administration's Boston Center advises the North East Air Defense Sector (NEADS) that American Airlines Flight 11 is airborne and...

09/11/2001

9:24AM

NEADS Deploys Fighter Jets

The North East Air Defense Sector (NEADS) scrambles fighter jets from Langley Air Force Base in Virginia in search of American Airlines Flight 11.

09/11/2001

9:24AM

Flight 93 Receives Warning

Flight 93 receives a warning about a possible cockpit intrusion...

09/11/2001

9:27AM

Last Routine Radio Communication with Flight 93

09/11/2001

9:28AM

Takeover of Flight 93

While traveling 35,000 above eastern Ohio, United 93 suddenly drops 700 feet. Eleven seconds into the descent, the Federal Aviation Authority's (FAA)...

09/11/2001

9:30AM

NORAD Deploys Fighter Jets

There was not enough warning time for North American Aerospace Defense Command (NORAD) to take effective action. Langley Air Force Base in Virginia launches...

09/11/2001

9:32AM

Dulles Airport Tower Observes Radar of Fast-Moving Aircraft

This aircraft was later identified as American Airlines Flight 77.

09/11/2001

9:32AM

Threatening Language from Flight 93 Cockpit

A controller at Cleveland Air Route Traffic Control Center overhears this transmission from Flight 93...

09/11/2001

9:33AM

Flight 77 Heads for the Pentagon

Ronald Reagan Washington National Airport tower passes to the Secret Service Operations Center in Washington the alarming...

09/11/2001

9:34AM

Federal Aviation Authority (FAA) Advises North East Air Defense Sector (NEADS) that Flight 77 is Missing

09/11/2001

9:34AM

Approach of Flight 77

Flight 77, positioned about 3.5 miles west-southwest of the Pentagon, starts a 330-degree descending turn to the right. At the end of the turn...

09/11/2001

9:36AM

Flight 93 Crew Contacts United Airlines

Flight Attendant Sandy Bradshaw dials the United Airlines Maintenance Facility in San Francisco...

09/11/2001

9:36AM

Evacuation of Vice President Cheney

Secret Service Agents evacuate U.S. Vice President Dick Cheney and his aides from his office in the White House to the Presidential Emergency Management...

09/11/2001

9:37AM

Crash of Flight 77

Flight 77 strikes the western facade of the Pentagon at the 1st floor level just inside Wedge 1 near Corridor 4, and proceeds diagonally at an approximate...

09/11/2001

9:41AM

Transponder for Flight 93 is Turned Off

The FAA’s Cleveland Air Route Traffic Control Center loses United 93’s transponder signal, but continues to track the flight using primary radar and visual sightings from other aircraft...

09/11/2001

9:42AM

The First Response

Much of the assistance rendered by rescuers came from the improvised action of individuals or small groups...

09/11/2001

9:42AM

Nationwide Ground Stop

The Federal Aviation Authority (FAA) halts all flight operations at U.S. airports, the first time in U.S. history that air traffic nationwide has been halted.

09/11/2001

9:45AM

Evacuation of the White House and U.S. Capitol

Evacuations begin at the White House and Capitol Building. Throughout the morning, officials evacuate high-profile buildings, government offices, landmarks...

09/11/2001

9:47AM

Arlington County Fire Department Assistant Chief Responds

Arlington County Fire Department (ACFD) Assistant Chief James Schwartz arrives at the Pentagon. Making...

09/11/2001

9:50AM

Incident Command Post Set Up at Pentagon

Assistant Chief James Schwartz and FBI Special Agent Christopher Combs...

09/11/2001

9:50AM

Phone Calls Provide Flight 93 Passengers and Crew with Vital Information

Thirteen of Flight 93’s 40 passengers and crew manage to alert loved ones and...

09/11/2001

9:55AM

President Bush Evacuated to Air Force One

President George W. Bush is airborne in Air Force One after hearing about the attacks. The pilot, after conferring with the lead Secret Service agent on...

09/11/2001

9:57AM

Fight for Flight 93

The passengers and crew on Flight 93 begin their assault on the Flight 93 hijackers...

09/11/2001

9:59AM

Collapse of the South Tower

After burning for 56 minutes, the South Tower collapses in 10 seconds, killing approximately 600 workers and first responders...

09/11/2001

10:03AM

Crash of Flight 93

With sounds of the passengers and crew still fighting the terrorists, Flight 93 crashes into a field near Shanksville, Pennsylvania at...

09/11/2001

10:06AM

Shanksville Students Take Shelter

To prevent passengers from retaking the airplane, hijackers deliberately crash Flight 93 in a field in Somerset County, Pennsylvania, killing...

09/11/2001

10:07AM

Cleveland Center Notifies NEADS

Unaware that Flight 93 had already crashed, Cleveland Center passes the aircraft’s last known latitude and longitude to NEADS (Northeast Air Defense Sector)...

09/11/2001

10:08AM

Shanksville Volunteer Fire Company Responds

While en route to the Flight 93 crash site, the Shanksville Volunteer Fire Company calls for all available emergency medical personnel...

09/11/2001

10:10AM

President Bush Makes Statement

Air Force One changes direction and heads west, eventually landing at Barksdale Air Force Base near Shreveport, Louisiana. While the aircraft refuels...

09/11/2001

10:13AM

Rescuers Evacuate the Pentagon

Battalion Chief Tim Lasher of Reagan National notices a crack in the structure and Captain Dennis Gilroy sees a cornice of the Pentagon move. Captain...

09/11/2001

10:15AM

United Airlines and NEADS Aware that Flight 93 Has Crashed in PA

United Airlines Headquarters is aware that Flight 93 has crashed in Pennsylvania. The Federal Aviation Administration's Washington Center advises the...

09/11/2001

10:15AM

Collapse of the Pentagon E Ring

The damaged section of the Pentagon's outermost offices, known at the E Ring, collapses. No rescue workers are injured. Narrower than...

09/11/2001

10:20AM

Complete Evacuation of the Pentagon Ordered

Admiral Balisle and other rescue workers receive word that security authorities ordered a complete...

09/11/2001

10:28AM

Collapse of the North Tower

The North Tower of the WTC collapses after burning for 102 minutes, killing approximately 1,400 in the building and surrounding area.

09/11/2001

10:30AM

American Airlines Headquarters Confirms Flight 77 Crash into Pentagon

09/11/2001

10:40AM

Pentagon First Responders Return to Building

After evacuating the Pentagon due to a pending threat of another attack, the firefighters and other emergency...

09/11/2001

11:02AM

Evacuation of Lower Manhattan

New York City Mayor Rudolph Giuliani calls for the evacuation of over one million residents, workers and tourists from...

09/11/2001

12:16PM

American Air Space cleared

The last commercial flight above the continental United States lands.

09/11/2001

2:50PM

President Bush Returns to the White House

Air Force One arrives at Offutt Air Force Base in Nebraska. President Bush then overrules his aides' continuing reluctance to have him return to Washington...

09/11/2001

3:15PM

Evidence Points to al Qaeda

During the president's video teleconference with key administration officials, Director of Central Intelligence George Tenet reports that evidence points...

09/11/2001

5:20PM

Collapse of 7 WTC

World Trade Center Building 7 collapses after burning for most of the day. There are no causalities because the 47-story building had been evacuated that morning.

09/11/2001

6:00PM

Pennsylvania Governor Conducts Press Conference

Pennsylvania Governor Tom Ridge flew over the crash site in a helicopter, then landed nearby and conducted a press conference...

09/11/2001

6:42PM

Secretary of Defense Rumsfeld Holds a Press Conference

Secretary of Defense Donald Rumsfeld holds a brief press conference in the Pentagon to demonstrate to the...

09/11/2001

8:30PM

President George W. Bush Addresses the Nation

After emphasizing that the first priority is to help the injured and protect against any further attacks, he said: "We will...

09/11/2001

Pentagon Fire Extinguished

The Arlington County Fire Department (ACFD) retains control for 10 days, relinquishing it on September 21 to the FBI after the fire...

09/21/2001

Death of Osama bin Laden

Washington, D.C.-- (May 2, 2011) –It was announced last night that Osama bin Laden, the face of global terrorism...

05/02/2011