The Canada Industrial Relations Board has declared a strike by 10,000 Air Canada flight attendants illegal and ordered them back on the job after they ignored an earlier order to return to work and submit to arbitration.

Air Canada flights will resume on Saturday evening, as a strike by its 10,000 cabin crew came to an end. The Canadian Industrial Relations Board (CIRB) told the airline's staff to return to work and said that an expired collective agreement would be extended until a new one was agreed.