Air France promises to reimburse obese flyers it asks to buy doublewide seating if the plane isn't full, a company spokesman said Wednesday.
The company, which has long offered obese passengers the option of buying an adjoining seat at a discount, said that passengers would be fully reimbursed for the second fare in 90 percent of cases.
A company spokesman couldn't provide figures on the number of passengers affected by the measure, but said "It's a problem that the company faces."
Obese passengers who don't reserve a second seat may not be allowed to board, at the captain's discretion and if there is not an unoccupied adjoining seat.
"It's a question of security," spokesman Nicolas Petteau said.
The airline denied reports in the French press that it would oblige obese passengers to buy a second seat.
The policy will come into force starting in April.
Three years ago Air France was sued by a 353 pounds passenger who the airline obliged to buy a second seat for a full New Delhi-Paris flight. Air France was ordered to pay $11,423 in damages and to reimburse the cost of the second seat.
Other airlines with similar policies on obese passengers include Southwest, JetBlue and American Airlines.