In 1977, new routes to Madrid and Lyon were introduced. That year JAT had almost three million passengers. All Caravelles were withdrawn from the fleet, while the line to Karachi was terminated. The same year, Belgrade was connected with New York City, Malta, Baghdad, Kuwait City and Damascus. In 1976, two more Boeing 727s joined the fleet, for a total of five. In 1976 fleet consisted of 4 Boeing 707, 13 McDonnell Douglas DC-9, 3 Boeing 727, 5 Caravelle and one Convair. Same year three brand new Boeing 727s were introduced. In 1975 Belgrade was connected with Karachi, Singapore and Sydney. Long-haul routes to North America, Australia, and the Far East were flown by Boeing 707s, introduced in 1970. In 1969, the first McDonnell Douglas DC-9-32 (of 16) arrived, followed in 1974 by the first two (of nine) Boeing 727-200s, followed by McDonnell Douglas DC-9 in 1969 (of 16), Boeing 707 in 1970, McDonnell Douglas DC-10 in 1971 (of 7).
In 1963, the first Sud Aviation Caravelle joined the JAT fleet. JAT purchased several Douglas DC-6Bs for long-haul routes in 1959. In 1957, six Ilyushin Il-14M aircraft were purchased. Multiple international and domestic routes were opened soon after. Convair CV-340 and Convair CV-440 Metropolitan aircraft were purchased for short-haul and medium-haul routes, after which the Douglas DC-3 was used only on domestic routes. However, 1954 was in many ways a turning point. Company stagnation marked operations in 1949 because the traffic volume was well below fleet potentials and transport needs in the country. When Yugoslavia turned to the West, an agreement was made with Swissair to open the Belgrade- Zürich route, which was inaugurated on 24 August 1949. JAT was forced to survive on six domestic lines. This caused further rationing of fuel, difficulties in procuring spare parts, and the cancellation of all flights to Eastern European destinations. In 1949, Yugoslavia was faced with a dire international position: isolated both by the West and the East. The airline was officially renamed to Jugoslovenski Aerotransport ( JAT) on 1 April 1947. Three Douglas C-47 Skytrain and three Junkers Ju 52 were converted to carry passengers. Consequently, preparations were made for the formation of an air transport company. In 1946, it was apparent that the Yugoslav Air Force could not be involved in the nation's post-war build-up of civil aviation. the name was changed to Jugoslovenski Aerotransport (abbreviated JAT "Yugoslav Air Transport"), then to JAT Yugoslav Airlines and finally to Jat Airways on 8 August 2003. JAT Yugoslav Airlines was launched on 1 April 1947 and replaced Aeroput in 1948. Aeroput continued to operate until the start of World War II.
In 1937, the expansion of international routes and an increase in passenger numbers enabled Aeroput to acquire the Lockheed Model 10 Electra. Their first international flight was in 1929 between Belgrade and Graz.
JAT traces its heritage back to 1927 when Aeroput, the first civil airline in Yugoslavia was founded. JAT Yugoslav Airlines McDonnell Douglas DC-10-30 at Belgrade Nikola Tesla Airport, 2003 The change marked the end of 66 years of the JAT brand. Certain assets, such as the ATR 72 aircraft, would be transitioned to Air Serbia, while other assets (such as the 737-300s) would remain in JAT Airways branding until retired. On 1 August 2013, the Government of Serbia and Etihad Airways entered into an agreement that reorganized the operations of Jat Airways, and renamed it Air Serbia after the transitional period ended. Jat Airways was owned by the government of Serbia and had 1,250 employees. Flight operations were based at Belgrade Nikola Tesla Airport, and the airline operated scheduled services to 72 international destinations, outside the areas formerly part of Yugoslavia, as well as charters and wet leases. Jat Airways and their predecessors were one of the oldest airlines still in operation.
The airline was renamed again on 8 August 2003. After resuming flights in 1947, the airline was renamed Jugoslovenski Aerotransport (abbreviated JAT, pronounced "Yugoslav Air Transport") on 1 April 1947. Founded in 1927 as Aeroput, the airline ceased operations during World War II. Jat Airways (stylized as JatAirways Serbo-Croatian: Jat ervejz / Јат ервејз) was the national flag carrier and largest airline of Serbia, and formerly Yugoslavia. Not to be confused with Jatt Airways or Jet Airways.ġ7 June 1927 ( ) (as Aeroput) ġ April 1947 ( ) (as JAT Yugoslav Airlines)