Australia Weather News

Flights in and out of Adelaide are experiencing disruptions this morning due to heavy fog.

An Adelaide Airport spokesperson said a number of flights were delayed for take-off while others have been circling around waiting to land as at 10am on Wednesday.

Earlier this morning, two international flights from Malaysia and Singapore were circling over Yorke Peninsula for 30 minutes, but they have now landed in Adelaide.

There were also delays for passengers departing from Adelaide on Singapore Airlines this morning.

The Adelaide Airportspokesperson said three planes — two Qantas flights from Sydney and one Jetstar flight from Melbourne — have been diverted to Melbourne.

Lynton Jones said he was on Qantas flight QF731 from Sydney to Adelaide but landing was aborted this morning due to the fog.

He said his flight has been diverted to Melbourne for refuelling, which landed at 10am AEST, before it would make the journey to Adelaide. 

"Pilot expects 20 minutes turn around to refuel and head back to Adelaide," he told ABC News.

Qantas and Jetstar confirmed the three flights diverted to Melbourne have since returned to Adelaide.

Qantassaid two other scheduled flights — one from Adelaide to Sydney and another from Sydney to Adelaide were also cancelled due to the fog.

 It said passengers re-accommodated onto later flights.

Virgin Australia said two flights were late to arrive into Adelaide after "entering holding patterns prior to landing as a result of the fog."

Pat Ritchie and her son Andrew Ritchie were among a number of passengers waiting for hours at the Adelaide Airport due to flights delays.

Ms Ritchie said the delays would have impacted her if she had connecting flights to her home in the Central Highlands of Queensland.

"It doesn't worry me, because I'm only going as far as Brisbane, my daughter picks me up, but I'd imagine if I was going on to my home in Emerald, it would affect me," Ms Ritchie said.

Bureau of Meteorology senior forecaster Tom Anderson said a thick fog covered Adelaide's northern and western suburbs due to the high pressure system.

He said this morning the fog has spread towards the CBD but is now lifting.

The Adelaide Airport spokesperson said further delays were to be expected and advised travellers to check with their airline for the latest updates.