Fog is clearing at Mount Gambier Airport and delayed flights from Adelaide are expected to arrive soon.
A flight to Melbourne was cancelled earlier, and two flights from Adelaide and Melbourne were cancelled last night.
A flight bound for Adelaide was delayed on Wednesday morning but was expected to leave about 9:00am.
© ABC 2013
15:26 EST Farmers are being warned climate change will intensify the challenge of feeding an increasing global population, with an expected 9 billion on the planet by 2050.