The Airport Company South Africa ACSA says the King Phalo Airport is experiencing flight delays due to inclement weather in the Eastern Cape.
Passengers including those of FlySafair have been left stranded at the OR Tambo International Airport in Johannesburg.
Some flights have been diverted to King Shaka International Airport, north of Durban.
Videos sent to SABC News show passengers standing in long queues.
Passenger Zoya Mabuto says the situation has not been managed well.
