Air Canada has canceled most of its flights over the next few days to prepare for a strike by flight attendants. Some travelers may end up stranded as a result.

Air Canada said it will start cancelling flights on Thursday ahead of a possible strike by its flight attendants, which the airline said will allow for an orderly shutdown of Canada's largest airline.

TORONTO — Air Canada started canceling flights on Thursday ahead of a possible work stoppage by 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.