Flights have been thrown into chaos after a massive storm delayed flights out of Australia’s busiest airport. 

The thunderstorms struck near Sydney Airport on Sunday afternoon and has caused delays with departing aircraft.

‘Passengers travelling this afternoon and evening should stay alert for messages from their airline,’ a Sydney Airport spokesperson said.

The massive thunderstorms hit Sydney on Sunday afternoon, causing departing flights to be delayed (pictured a stock photo of planes at Sydney Airport)

More the come.