An overflight right or right of overflight is the right or privilege granted to a State of flying across the territory of the State making the grant, without landing, on a scheduled or other than scheduled international air service. The International Air Services Transit Agreement identifies the related term of First Freedom of the Air — the right or privilege, in respect of scheduled international air services, granted by one State to another State or States to fly across its territory without landing (also known as a First Freedom Right