Eastern time/Mountain time
7:58 a.m./5:58 a.m.
United Airlines Flight 175 departs Boston for Los Angeles. It is carrying 56 passengers, two pilots and seven flight attendants. The Boeing 767 is hijacked shortly after takeoff and diverted to New York.
7:59 a.m./5:59 a.m.
American Airlines Flight 11 departs Boston for Los Angeles. It is carrying 81 passengers, two pilots and nine flight attendants. This Boeing 767 is also hijacked and diverted to New York.
8:01 a.m./6:01 a.m.
United Airlines Flight 93, a Boeing 757 carrying 38 passengers, two pilots and five flight attendants, leaves Newark, N.J., for San Francisco.
8:10 a.m./6:10 a.m.
American Airlines Flight 77 departs Washington’s Dulles International Airport for Los Angeles. It is carrying 58 passengers, two pilots and four flight attendants. The Boeing 757 is hijacked after takeoff.
8:46 a.m./6:46 a.m.
American Flight 11 from Boston crashes into the North Tower of the World Trade Center.
9:03 a.m./7:03 a.m.
United Flight 175 from Boston crashes into the South Tower of the World Trade Center.
U.S. Federal Aviation Administration shuts down all New York-area airports.
9:21 a.m./7:21 a.m.
Bridges and tunnels leading into New York City are closed.
9:25 a.m./7:25 a.m.
The FAA grounds all domestic flights.
9:45 a.m./7:45 a.m.
American Flight 77 crashes into the Pentagon.
10:05 a.m./8:05 a.m.
The South Tower of the World Trade Center collapses.
The White House is evacuated.
10:10 a.m./8:10 a.m.
A large section of one side of the Pentagon collapses.
10:10 a.m./8:10 a.m.
United Flight 93 crashes in a wooded area in Pennsylvania, after passengers confront hijackers.
10:28 a.m./8:28 a.m.
The North Tower of the World Trade Center collapses.
11:00 a.m./9:00 a.m.
New York City Mayor Rudolph Giuliani orders lower Manhattan to be evacuated.
11:40 a.m./9:40 a.m.
With U.S. military on nuclear alert, President Bush is taken to Barksdale Air Force Base in Louisiana.
1:20 p.m./11:20 a.m.
Bush boards Air Force One for Offutt Air Force Base in Nebraska, headquarters of the U.S. Strategic Air Command.
2:51 p.m./12:51 p.m.
U.S. military deploys missile destroyers to New York and Washington.
7:00 p.m./5:00 p.m.
Bush arrives in Washington.
8:31 p.m./6:31 p.m.
Bush addresses the nation, vowing to punish “evil acts.”