The Freedom of the Air
The Rights of one airline to operate from the country of its ownership to another country is generally governed by bilateral air services agreements (ASAs) agreed to between two contracting states. The ASAs clearly define the rights/obligations of designated airlines of the two countries and also determine the frequency of flights to be allowed to each carrier along with number of passengers or the quantity of cargo/mail carried. These rights, referred to as traffic rights, are normally governed by the principle of reciprocity, although it is upto the aeronautical authorities of the contracting states to agree to any variation.
FIRST FREEDOM
The right to Fly over another country without landing
SECOND FREEDOM
The right of making a technical landing for refueling,etc., without picking up or letting off revenue traffic
THIRD FREEDOM
The right to carry revenue traffic from nation A to nation B.
FOURTH FREEDOM
The right to carry revenue traffic from nation B to nation A
FIFTH FREEDOM
The right to pick up or let off revenue traffic between nation A and nation B, or at a point beyond nation B.
SIXTH FREEDOM
The carriage of revenue traffic from third nation (s) to nation A, and its subsequent carriage to nation B.
SEVENTH FREEDOM
Revenue traffic flown between the territories of two nations (B to C) by carrier operating entirely outside its own territory A.
EIGHTH FREEDOM
The privilege to carry a treaty partner’s domestic revenue traffic (city 1 to city2).