This study aims to formulate a legal reconstruction model for airfare setting to achieve legal certainty and justice in Indonesia. The method used is normative juridical, with statutory and analytical approaches, to Law Number 1 of 2009 concerning Aviation and its derivative regulations. The results indicate that the rigid price caps regulation has proven ineffective in accommodating fare surges driven by fundamental market forces, such as rising fuel costs, unfavourable exchange rates, and modern market mechanisms. Legal reconstruction is suggested through a hybrid tariff regulatory framework that balances state control with market flexibility, allowing market forces to drive efficiency while simultaneously defending the market from anti-competitive abuse and robustly protecting the rights of consumers. This model is expected to create an adaptive tariff system, provide legal certainty, ensure social justice, and support the sustainability of the aviation market in Indonesia.
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