The US federal government shutdown, which started on 01 October, has disrupted air travel across the country. Major hubs such as Newark, Phoenix, Denver, Las Vegas, Burbank, and Chicago airports have been particularly affected. Staffing shortages are a key factor. Essential personnel, including air traffic controllers and TSA officers are required to work without pay. This has led to higher absenteeism and reduced operational capacity. The situation poses immediate security and operational risks to critical infrastructure. If the political deadlock continues, further system strain and broader flight cancellations are likely.