
Air Freedom Rights
Traditionally, an airline needs the approval of the governments of the various countries involved before it can fly in or out of a country, or even fly over another country without landing. Prior to World War II, this did not present too many difficulties since the range of commercial planes was limited and air transport networks were in their infancy and nationally oriented. In 1944, an International Convention was held in Chicago to establish the framework for all future bilateral and multilateral agreements for the use of international air spaces. Five freedom rights were designed, but a multilateral agreement went only as far as the first two freedoms (right to overfly and right to make a technical stop). The first five freedoms are regularly exchanged between pairs of countries in Air Service Agreements. The remaining freedoms are becoming more important, however. Freedoms are not automatically granted to an airline as a right, they are privileges that have to be negotiated and can be the object of political pressures. All other freedoms have to be negotiated by bilateral agreements, such as the 1946 agreement between the United States and the UK, which permitted limited "fifth freedom" rights. The 1944 Convention has been extended since then, and there are currently nine different freedoms (see above picture):
Third and Fourth Freedoms are the basis for direct commercial services, providing the rights to load and unload passengers, mail and freight in another country.