Air Canada flight attendants who were on strike last month have voted against a deal to ratify a new collective agreement reached between their union and the air carrier.

The Air Canada component of the Canadian Union of Public Employees, or CUPE, said in a press release on Saturday that 99.1 per cent of employees had voted against the agreement, after a 10-day process that saw more than 10,000 members cast their vote. The turnout was 94.6 per cent.

The “no” vote means that Air Canada AC-T and CUPE will meet with a mediator to find ways to reach common ground on the issue of wages. If they do not, the matter will be referred to an arbitrator at the Canada Industrial Relations Board, who will decide on an appropriate wage increase for flight attendants – a decision that cannot be challenged by either side.