Air Canada is experiencing significant disruption as its flight attendants officially went on strike, leading to the grounding of hundreds of flights. The union representing the cabin crew rejected calls for arbitration, resulting in widespread cancellations and confusion for travelers. As the situation escalates, Air Canada has begun canceling hundreds of flights, leaving many passengers stranded and scrambling for alternative arrangements. The strike has raised concerns about potential chaos at airports, particularly for travelers in Canada and beyond. While negotiations continue, the airline is preparing for a complete shutdown if an agreement is not reached soon. Passengers are advised to stay informed and make contingency plans.