Air Canada suspended flights after its union representing 10,000 flight attendants defied a federal return-to-work order, intensifying disruptions during peak travel season. The strike affects approximately 130,000 daily travelers worldwide. Government intervention through the Canada Industrial Relations Board mandated a return to work, which the union publicly rejected, citing unfair processes. The prolonged work stoppage complicates capacity for airlines and causes significant travel delays, especially with smaller margins in the industry’s summer period. This labor dispute highlights growing tensions in airline labor relations and operational risks in the post-pandemic travel recovery phase.