EU Regulation Nr. 261/2004 entitles passengers to refunds or replacements. Compensation available if airline informs less than 14 days before departure. Compensation ranges from €250 to €600 per passenger based on flight distance
Subrogation is the assumption of another party's legal rights to collect debts. First developed in English Court of Chancery as an equitable remedy. Common in common law systems, with similar doctrines in civil law