Air Canada began canceling flights Thursday ahead of a possible strike by its flight attendants that could impact hundreds of thousands of travelers. A complete shutdown of the country's largest airline threatens to impact about 130,000 people a day.

Air Canada has started canceling flights ahead of a possible work stoppage by flight attendants that could impact hundreds of thousands of travelers.

The Canadian carrier has canceled all flights ahead of a possible flight attendants strike, threatening to disrupt travel for more than 100,000 passengers per day.