There are fears in French Polynesia that Air France could end its Paris to Tahiti service because of continued losses on the route.
The French carrier has told its 116 employees based in French Polynesia that they need to improve their productivity by 39 percent, meaning roster changes and pay cuts.
So far, two months of negotiations have been unsuccessful as unions have offered only 10-percent pay cuts plus a loss of their 13th monthly salary.
A union delegation is therefore off to Paris this week for talks with the Air France CEO.
The only other airline flying Papeete-Los Angeles-Paris is Air Tahiti Nui.
The loss of the Air France service would be a blow to the struggling tourism industry which relies on US visitors.