About 30 per cent of Air France flights scheduled on Tuesday are expected to be cancelled due to a strike over pay.
Crews and ground staff are staging their eighth day of walkouts since February. They are seeking a six per cent pay rise. Their wages have been frozen since 2011.
Air France's management on Monday offered a two per cent rise this year followed by an increase totalling five per cent over the following three years.
Unions have until the end of the week to decide whether to accept the proposed deal.
The pilots' main union, SNPL Air France, said the offer doesn't meet its demands.
Some 45 per cent of long-haul flights will be cancelled, along with 35 per cent of medium-haul flights to and from Paris.
Australian Associated Press