Interair South Africa is a regional airline based in South Africa that has operated scheduled and charter passenger services across southern and sub-Saharan Africa. The carrier has focused on linking South African cities with destinations across the broader African continent, filling gaps left by larger carriers on thinner regional routes. The airline has operated under IATA code D6 and ICAO designator ILN, with the radio callsign INLINE. It has faced the challenging operating environment typical of African regional aviation, including fluctuating demand and infrastructure constraints. Interair has operated with a relatively small fleet and has at various points offered both scheduled services and charter operations, serving business and leisure travelers seeking regional connectivity within Africa.