United Airlines Flight 175
Also called: UA175, Flight 175
On 11 September 2001 an airliner that left Boston at 8:14 a.m. was hijacked and flown into the south tower of the World Trade Center at 9:03, live on television.

The Boeing 767 carried 60 crew and passengers — and five hijackers. After the hijacking the plane flew southwest as far as New Jersey, then turned northeast toward New York.
At 9:03 a.m. it struck floors 77–85 of the south tower. Television cameras trained on the burning north tower broadcast the moment live, and the world understood that this was no accident but an attack.