CELEX:62020CJ0146: Judgment of the Court (First Chamber) of 21 December 2021.#AD and Others v Corendon Airlines and Others.#References for a preliminary ruling – Air transport – Regulation (EC) No 261/2004 – Common rules on compensation and assistance to passengers in the event of cancellation or long delay of flights – Articles 2 and 3 – Concepts of ‘operating air carrier’, ‘confirmed reservation’ and ‘scheduled time of arrival’ – Articles 5, 7 and 8 – Flight departure time brought forward in relation to the original planned departure time – Classification – Reduction in the amount of compensation – Offer of re-routing – Article 14 – Obligation to inform passengers of their rights – Scope.#Joined Cases C-146/20, C-188/20, C-196/20 and C-270/20.