Union leaders for Air Canada’s flight attendants said members would return to work after a deal was reached to end a three-day strike that grounded hundreds of flights, hitting around 500,000 customers.

Two class action lawsuits have been proposed in Quebec for Air Canada passengers affected by the flight attendant strike.

The cabin crews walked off the job early Saturday morning, grounding Canada’s largest airline, cancelling about 700 flights a day and stranding passengers around the world.