Traffic in South Africa is heavily concentrated: O. R. Tambo International Airport (JNB) alone handles about 21.0 million passengers a year, roughly 66% of the 32 million across the 3 airports listed here. That pattern is typical of a country with one dominant hub carrier feeding a single gateway.
Between them these airports operate 5 runways serving 3 cities, all on a single national clock. The highest field is O. R. Tambo International Airport at 5,558 ft, where thinner air lengthens the takeoff run. Every airport below links to a live map of aircraft observed within available ADS-B coverage around the field.
The next airport in the ranking is Cape Town International Airport (CPT) at about 10.7 million passengers. The gap to JNB is 10.3 million, while the three busiest airports account for roughly 100% of traffic represented by this list. Most listed traffic is therefore concentrated at the top of the network.
The airports are spread across roughly 8 degrees of latitude and 13 degrees of longitude. The network is geographically compact enough that most domestic sectors remain comparatively short. Field elevations span 5,407 ft, so crews can move between very different takeoff-performance conditions. The average across this selected set is 1.7 runways per airport.
Read airport by airport, the selected South Africa network is not interchangeable: O. R. Tambo International Airport (JNB) has 2 runways and about 21.0 million annual passengers, Cape Town International Airport (CPT) has 2 runways and about 10.7 million annual passengers and King Shaka International Airport (DUR) has 1 runway and no comparable traffic figure. Those differences matter when comparing a live map. A larger passenger total indicates schedule scale, while runway count describes physical layout; neither number by itself proves how delayed, connected or operationally efficient an airport will be on a particular day.
With 3 gateways in this data cut, the South Africa hierarchy is readable directly: JNB contributes 66% of the represented passenger total, CPT contributes 33% of the represented passenger total and DUR contributes 0% of the represented passenger total. That makes JNB the first gateway here without reducing CPT to a minor field, since its traffic is about 51% of JNB's.
The physical ranking differs from the traffic ranking: JNB has 2 listed runways, CPT has 2 listed runways and DUR has 1 listed runway. JNB is the highest of the group at 5,558 ft, against 151 ft at CPT. Those facts describe layout and setting, not a live capacity forecast; weather, active runway configuration and traffic flow still decide what a viewer sees on the map at a given hour.