The Sultanate of Oman's national airline is Oman Air. It operates regional air taxi and charter flights in addition to domestic and international passenger services from Muscat International Airport in Seeb, Muscat.
Oman Air began as Oman International Services (OIS), which was established in 1970. At Beit Al Falaj Airport, the company became a ground handling provider for civil aircraft. OIS relocated to the brand-new terminal at Seeb International Airport in 1972. In 1977, the company established the Aircraft Engineering Division before taking over Gulf Air's Light Aircraft Division. OIS built a number of facilities to accommodate the rapidly expanding civil aviation industry in Oman, including hangars, workshops, and in-flight catering.

Oman Aviation Services became a joint-stock corporation in 1981. OAS also purchased 13 Gulf Air aircraft, enabling the company to switch from its Fokker 27-600 turboprops to the 500 series. Oman Aviation Services and Gulf Air launched joint jet services to Salalah the following year. The Cessna Citation and other new pieces of equipment and facilities were purchased by the business between 1983 and 1993 to help it improve its services.