CANADA, — Summer travelers are facing uncertainty as the clock winds down on a possible strike by Air Canada flight attendants, which the airline said would force it to cancel almost all of its scheduled flights as soon as Saturday.

The Canadian carrier on Thursday began what it described as a “phased wind down” of most operations that included multiple flight cancellations. Air Canada said it was suspending its schedule and trying to get passengers booked with other airlines to limit disruptions if members of its cabin crews walk off the job.

Both the union that represents about 10,000 Air Canada flight attendants and the airline say disagreements over key issues, including pay raises, have brought contract talks to a standstill.

A complete shutdown of the country’s largest airli

See Full Page