South African Airways has a low-cost partier that is based at which airport?
South African Airways:  The airline flies to 56 destinations worldwide, in partnership with SA Express, SA Airlink and its low-cost carrier, Mango, within South Africa and across the continent, and eight intercontinental routes from its Johannesburg hub at OR Tambo International Airport, using a fleet of 54 aircraft. Mango (airline): Mango Airlines SOC Ltd, trading as Mango, is a state-owned South African low-cost airline based at OR Tambo International Airport near Johannesburg and a subsidiary of South African Airways.
OR Tambo International Airport