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9/11 25 Years Later: Effect on Air Travel Endures, but Rules Are Changing Again
The attacks led airlines and regulators to overhaul security training, and Congress created the Transportation Security Administration a month later.
Today marks 25 years since the September 11, 2001 terrorist attacks, which killed nearly 3,000 people and prompted Congress to create the Transportation Security Administration and reinforce cockpit doors.
Following the attacks, the airline industry faced severe financial turmoil as sharp drops in passenger demand and rising fuel costs nearly destroyed carriers nationwide, particularly Atlanta-based Delta.
Atlanta-Based Delta endured $6 billion in losses and $19 billion in debt by 2005, yet mounted an incredible comeback with $63 billion in revenue last year, now the world's most valuable airline.
Hartsfield-Jackson grew from 78 million passengers in 2001 to 106 million in 2025, remaining the world's busiest airport while security measures evolved from pre-9/11 practices allowing family gate access.
TSA Administrator David Cummins announced Gateside, testing at 13 airports to restore gate access for precheck members after 25 years. United Airlines pilot Tony Montalto said, "Certainly, I feel safer," reflecting on improved aviation security.