Air Canada suspended its guidance through the end of this year, citing the impact of a strike by flight attendants that has caused the airline to suspend its flying schedule.

Air Canada suspended plans to restart operations Sunday after the union representing 10,000 flight attendants said it will defy a return to work order.

More than 10,000 Air Canada flight attendants will continue their strike despite back-to-work orders from the Canadian government, the Air Canada component of the Canadian Union of Public Employees said Sunday.