The union representing around 10,000 Air Canada flight attendants says it has declined a proposal from the airline to enter a binding arbitration process.

Air Canada flight attendants plan to picket at four airports on Monday to highlight their pay demands in contract negotiations with Canada's largest airline, but its operations will not be affected, the union said.

Air Canada offered its flight attendants an overall increase of more than 30% over four years to try to avert a potential strike, according to a person familiar with the negotiations.The union representing the airline’s more than 10,