Flight attendants went on strike after Air Canada gave wage increases to certain employees, including pilots with a 26% rise in 2024, a mostly male-filed role according to CUPE. In contrast, the union said that flight attendants, who are mainly women, received a lower 8% increase in 2025.

The Canada Industrial Relations Board had declared the strike illegal earlier on Monday and ordered the striking flight attendants back on the job. But the union said it will defy this second return to work order, after an earlier one had been ignored. The earlier one also ordered the union to submit to arbitration.

Air Canada flights will resume Tuesday evening, it said. Details were sparse on the tentative deal between the company and its flight attendants union, CUPE.