Members will not return to work despite a back-to-work order.
Air Canada has cancelled hundreds of additional flights as flight attendants continue to strike.
The Canadian Union of Public Employees says members will not return to work despite a back-to-work order.
Union president Mark Hancock publicly ripped up a copy of the order while members picketed outside airports.
The federal government says binding arbitration is needed to avoid further disruption to travellers and the economy.
