Sydney Airport grounds flights until further notice

Sydney Airport grounds flights until further notice

File picture shows a Qantas Airways Boeing 737-800 plane passing a Singapore Airlines Airbus A380 at Sydney Airport.

TRAVELLERS flying to and from the Sunshine Coast will be stuck for hours today as flight delays plague airports across Australia.

Global and domestic flights have been delayed at Sydney Airport on Monday morning due to a technical issue.

At around 8:30 AM, Sydney Airport took to social media to say that the system issue had been resolved.

All flights at Sydney Airport have been grounded following a huge power outage on the first day of school holidays.

"Our technicians are now working to rectify the situation", ASA said.

Anyone planning to travel out of Mascot Airport is being urged to check their flight and airline to see if it has been affected.

The "air traffic control system failure" hit about 5am on Monday, on the first day of the NSW school holidays, cancelling some flights and delaying others by hours. "We are working to have all guests on their way as quickly and safely as possible", it said in a statement.

The technical glitch was resolved by 9am with the domestic airport "progressively returning to normal operations", a spokeswoman for Sydney Airport said.