Flight cancellations and delays affected Sydney Airport on the morning of September 11, 2026, due to a shortage of air traffic controllers. Airservices Australia, the federal agency managing Australian air traffic, implemented Air Traffic Flow Management (ATFM) measures to manage aviation demand safely amid roster constraints.
ATFM Measures Lifted But Delays Persist
The ATFM measures were lifted at 8:15 a.m. local time (2215 GMT on September 10, 2026) after improvements in staffing conditions. However, delays of up to 10 minutes were still expected for the remainder of the morning. Some Qantas flights experienced delays exceeding one hour, and six flights were cancelled according to official updates.
Sydney Airport’s website did not provide specific reasons for the delays, directing inquiries to Airservices Australia.
Controller Shortage and Safety Investigations
The flight disruptions resulted from a shortage of air traffic controllers caused by roster constraints. This staffing shortage coincides with ongoing investigations into six near-misses at Sydney Airport over about one month. Internal reports have flagged fatigue risks among controllers on duty during these close calls.
One unnamed air traffic control shift manager described the staffing levels as “a bit insane.” Airservices Australia is actively recruiting additional controllers and facilitating the use of extra staff when required to address these challenges.
Official Response and Broader Context
An Airservices Australia
spokesperson acknowledged that ATFM measures may have disrupted airline schedules and stated the agency is working with airlines to reduce delays and minimize passenger impact as much as possible. The disruptions occur as Airservices Australia executives, including CEO Rob Sharp, are scheduled to appear before a Senate committee reviewing Australia’s aviation sector’s reliability and service delivery to regional areas.
These events unfold amid a global shortage of air traffic controllers and ongoing Australian Transport Safety Bureau investigations into repeated near-misses at Sydney Airport. The safety reviews seek to determine whether these incidents share common contributing factors.
