How many passengers died in all flights on 911?

On September 11, 2001, a total of 2,977 passengers and crew members died in the terrorist attacks involving four commercial flights. American Airlines Flight 11 and United Airlines Flight 175 crashed into the World Trade Center, while American Airlines Flight 77 struck the Pentagon, and United Airlines Flight 93 crashed in Pennsylvania after passengers attempted to overcome the hijackers. This tragic event remains one of the deadliest in aviation history.