PARIS — About 30% of Air France flights scheduled on Wednesday are expected to be cancelled as crews and ground staff start a seventh day of ******.

Workers unions are asking for a pay rise of six per cent across the board. Their wages have been frozen since 2011.

According to unions, the strikes have already cost Air France 200 million euros ($247 million).

Some 40% of long-haul flights will be cancelled and 25% of short-haul flights to and from Paris’s Orly airport and French regions will be affected.

Several meetings between workers’ representatives and Air France management have already taken place since the ****** started on Feb. 22 but unions say they have not yet received a satisfactory reply to their demands.