Judgment of the Court (Third Chamber) of 2 June 2022.#Skeyes v Ryanair DAC, formerly Ryanair Ltd.#Request for a preliminary ruling from the Tribunal de l’Entreprise du Hainaut, division de Charleroi.#Reference for a preliminary ruling – Air transport – Regulation (EC) No 549/2004 – Regulation (EC) No 550/2004 – Air traffic services provider – Decision to close airspace – Exercise of the powers of a public authority – Airspace user – Airlines – Right of appeal against a decision to close airspace – Article 58 TFEU – Freedom to provide services in the field of transport – Articles 16 and 47 of the Charter of Fundamental Rights of the European Union – Freedom to conduct a business – Right to an effective remedy.#Case C-353/20.