Sydney Airport ATFM ground delays ran 39% above average in August, Airservices Australia reports
Why It MattersPersistent Sydney tower staffing shortfalls highlight wider air traffic controller capacity constraints that could affect network-wide flow management and scheduling reliability across Australian aviation.
Ground delay times at Sydney Airport were approximately 39 per cent higher than the monthly average in August 2026, according to Airservices Australia's Australian Aviation Network Overview report for August 2026. Air Traffic Flow Management ground delays at Sydney reached 3.7 per cent, of which Airservices contributed 2.3 per cent, while across the broader network ATFM ground delays remained a small component of total network delay at 2.4 per cent, with Airservices contributing 0.6 per cent. Airservices-attributable ground delays at Sydney were around four times higher than the monthly average recorded in the previous financial year.
Airservices publicly acknowledged "workforce resilience challenges" affecting air traffic service outcomes in August, with Sydney's tower facing well-publicised staffing difficulties and controllers reported to take more sick leave on average than at any other major Australian airport. Airservices deputy chief Peter Curran told a Senate committee that 49 air traffic controllers are employed in Sydney, with 41 required to be available for rostering, and that Airservices is targeting a national increase in its ATC workforce from 1,100 to 1,200 by July 2028; 914 controllers are currently available against a stated need of 890.
Airservices is moving controllers between Sydney Kingsford Smith Airport and Western Sydney Airport as required, and Sydney's tower could be temporarily closed during curfew hours from 1 November, with freight flights holding curfew exemptions potentially rerouted to Western Sydney Airport. Separately, the Australian Transport Safety Bureau is investigating six safety occurrences at Sydney Airport; Airservices said each involved different operational circumstances and that multiple layers of safety controls were in place. The Sydney KSA ATC Working Group stated in a communiqué dated 28 August that the recent occurrences do not indicate an immediate safety risk to the travelling public based on currently available information.
