Aviation analytics firm Cirium said that as of Monday afternoon, August 18, Air Canada had called off at least 1,219 domestic flights and 1,339 international flights since last Thursday, when the carrier began gradually suspending its operations ahead of the strike and lockout.

The union for Air Canada's 10,000 flight attendants said early Tuesday that it has reached a tentative agreement to end a strike.

The Canadian Union of Public Employees, which represents the flight attendants, had continued to strike even after the Canada Industrial Relations Board declared it unlawful.