The airline said that it would gradually restart operations Tuesday but that a return to "full restoration may require a week or more."

On Tuesday, Air Canada and its 10,000 flight attendants reached a tentative agreement to end their contract dispute, both the airline and the Canadian Union of Public Employees (CUPE) announced.

According to a union representative, the new tentative deal between the airline and the union ­— set to expire March 31, 2029 — lays out a plan to pay flight attendants 50 per cent of their salary as...