
Source: IATA, World Air Transport Statistics.
Major Air Traffic Flows Between Regions, 2000
The great majority (74.6%) of air traffic flows (1.4 billion passengers) occurs within three regions, North America (35.5%), Europe (23.2%) and Asia (15.9%). Air traffic thus dominantly takes place on east-west axis over the Northern Hemisphere with other continents, such as South America, Africa and the pacific Southwest accounting for a residual function of feeders. The most important intercontinental routes link the most economically active regions of the world and include Europe - North America (3.9%), Europe - Asia (1.9%) and Asia - North America (1.7%). All these routes have a balanced passengers traffic as almost the same amount of passengers goes in one direction than the other. The main international routes are: