Airlines from high-risk countries are not banned. Only leisure travellers coming from high-risk countries are prohibited from entering South Africa. South African citizens, permanent and temporary residents, travellers from Africa, medium- and low-risk countries, and business travellers from high-risk countries (having made an application to the Department of Home Affairs) are permitted to enter South Africa, subject to the prescribed entry requirements.
Also note that transit through high-risk countries, where the traveller does not pass through immigration, is allowed, subject to the prescribed entry requirements. The restriction applies to travellers originating from a high-risk country.
According to Minister Naledi Pandor’s briefing on 30 September, entry into South Africa will be based on where the traveller’s passport shows they have spent the last 10 days.
We are also still awaiting clarity on how travellers can prove they have spent 10 days in a low-risk country in cases where there is not a passport stamp to indicate as such (e.g. passports are not stamped between EU countries).