In one of its rare rulings regarding the Regulation 261/2004, the Austrian Supreme Court decided in the case 4 Ob 177/21i that compensation payments an airline paid to a passenger in accordance with Article 7 of the regulation must be deducted from further claims for immaterial and material damages asserted by the passenger.
While the regulation sets forth certain passenger rights (Art 7: compensation, Art 8: reimbursement or re-routing, Art 9: care), other claims a passenger may assert (e.g. damages for a hotel booking or a rental car that he could not use) must be based on national law.
In the case at hand, the passenger claimed that the compensation payment aims only to reimburse him for the inconveniences linked to a denied boarding/cancellation/long delay and, therefore, must only be deducted from immaterial damages. However, the Austrian Supreme Court clarified that in such cases the compensation payment must also be deducted from material damages like expenses for a hotel booking or a rental car.