At least 10 flights have been cancelled and travellers faced large delays at Sydney Airport after a thick layer of fog fell over the city.
Delays of up to 30 minutes were caused at Sydney Airport’s T1 International terminal, while travellers were held back by up to 45 minutes at the T2 Domestic terminal.
It is believed the disruptions affected both arrivals and departures at the airport and multiple airlines have been affected.
A Qantas spokesman said the airline had three flight diversions and minor delays but no international cancellations.
Virgin Australia said they expected delays in and out of Sydney until early afternoon and advised passengers to check their online flight status page for information on their flights.
“Delays are expected to ease by early afternoon,” the airline said in a statement.
Weatherzone meteorologists told 9News.com.au visiblity across the city and at Sydney Airport dropped to as low as 200m by 7am.
In other parts of the city, it ranged up to around 600m. Outer western Sydney has been the worst-affected area.
Cool temperatures, a clear night and moisture in the air were perfect conditions for fog to form, which is not unusual for this time of year.
In Sydney Harbour, that meant the city’s iconic attractions – such as the Opera House and Harbour Bridge – completely vanished from sight for multiple hours this morning.
Despite that, forecasters believe the layer of fog is rapidly lifting across Sydney and should clear within coming hours.