“Our members are not going back to work,” Canadian Union of Public Employees national president Mark Hancock said outside Toronto's Pearson International Airport.

The presidents of two major Quebec unions fear workers in the province could soon face the same treatment as striking Air Canada flight attendants under a provincial law passed in May.

“This is going to be a test case for unions fighting against Section 107,” said Stephanie Ross, an associate professor of labour studies at McMaster University.