Open Skies

Freedoms of the air

The freedoms of the air, also called five freedoms of air transport, are a set of commercial aviation rights granting a country's airlines the privilege to enter and land in another country's airspace. They were formulated as a result of disagreements over the extent of aviation liberalisation in the Convention on International Civil Aviation of 1944, known as the Chicago Convention. The United States had called for a standardized set of separate air rights to be negotiated between states, but most other countries were concerned that the size of the U.S. airlines would dominate air travel if there were not strict rules. The freedoms of the air are the fundamental building blocks of the international commercial aviation route network. The use of the terms "freedom" and "right" confers entitlement to operate international air services only within the scope of the multilateral and bilateral treaties that allow them.

Sky

The sky is an unobstructed view upward from the surface of the Earth. It includes the atmosphere and outer space. It may also be considered a place between the ground and outer space, thus distinct from outer space.

open

Adjective

1. Physically unobstructed, uncovered, etc.

Verb

1. To make or become physically unobstructed, uncovered, etc.

skies

Noun

1. plural of sky though essentially synonymous with singular form; the heavens; the firmament; the atmosphere.
2. plural of skie.

Verb

1. third-person singular simple present indicative of sky