Why is the fifth freedom of the air important in negotiations between countries?

In the context of air law, the fifth freedom is the privilege granted to an airline to pick up or discharge traffic (passengers, mail, or cargo) in a foreign country that is destined for, or arriving from, a third state.1

This freedom is significant in international negotiations because it serves as the primary bargaining point when states exchange traffic rights. Because efforts to establish a universal multilateral agreement on these rights have been unsuccessful, countries typically negotiate them through bilateral agreements. These agreements are essential for defining specific routes, setting capacity limits, and establishing procedures for approving fares and tariffs.1

By granting fifth freedom rights, a state allows a foreign carrier to compete for traffic between the host country and a third destination, making these rights highly valuable and sensitive assets in diplomatic and commercial aviation negotiations.1