Thick fog has left ferry passengers on the Parramatta River stranded, forcing commuters to find another way to work this morning.

The fog has now lifted but before it did, it also caused delays at Sydney Airport.

Fifteen international flights had to be diverted to Brisbane and Melbourne while some domestic flights arrived late.

Rod Gilmore from Sydney Airport says there will still be delays throughout the morning.

“So things are back to normal in terms of operations, but obviously there will be impacts particularly to the domestic networks through the morning,” he said.

“We do advise passengers to check with their airline, or they can also check arrival and departure information on our website www.sydneyairport.com.”