Purpose: The purpose of this study were to to analyze legal issues regarding the practice of codeshare agreements and what law applies when a dispute or claim for compensation occurs. Methods: The approach used in this research are statute approach, historical approach, and conceptual approach. Result and conslusion: The results of this study are that in dealing with claims for compensation submitted by passengers, the concept of choice of law cannot be deviated according to international civil law because codeshare agreements are included in the field of contract law, but depend on the law that has been determined by the airline company. Research implications: This study provides explanation about the theory of liability that can be imposed on airline companies such as liability based on fault, presumption of liability and liability without fault. Originality/value: This study provides valuable insights about several efforts that can be made if there is a dispute or claim for compensation because of the practice of codeshare agreements.