I have a booking (made n QR website from Doha - Windhoek (WDH), Namibia - but due to no direct flights have to transfer in Johannesburg (JNB). Flight from JNB to WDH is with SA Airlink. I will not have checked luggage - only carry-on.

Is there an international airside transfer/transit in Johannesburg, South Africa ? I will travel with a PCR as I need one in any case for Namibia , but returning due the number of restrictions for South African originated flights - do not want to clear customs & immigration or enter South Africa.

Appreciate any information or guidance . Thanks