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
18:16 EST Heavy rain has stranded about 40 people at William Creek in the South Australian outback due to flooded roads and low cloud has grounded aircraft.