The present study has the goal of summarizing the discipline of the impediments of the passenger in contracts of air carriage, also in light of the recent case law. The main critical issues are evidenced as far as the construction and interpretation of the provisions of the navigation code are concerned, especially in consideration of no-fault impediment of the passenger and of the effects of the clause related to the non redeemability of the price of the ticket issued at a special rate, which is more and more used by air companies.