Comment by throw0101a

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).

* https://www.icao.int/pages/freedomsair.aspx

* https://en.wikipedia.org/wiki/Freedoms_of_the_air

Note that Belarus is not a signatory to the International Air Services Transit Agreement (IASTA):

* https://www.icao.int/secretariat/legal/list%20of%20parties/t...

Neither is Lithuania, but Greece is.