Air France plane
Credit: Björn Forenius/Getty Images

France is the world’s most visited country — in 2017 alone, 86.9 million people came to see sites like the Louvre, Versailles, and the Eiffel Tower. And while a good chunk of visitors arrive by train, car, and boat, if you’re traveling from the U.S. chances are you’re taking a plane.

Starting in 2020, that plane ride might get a little more expensive, thanks to a new “ecotax” France is tacking onto most flights departing from France. The tax, which will be used to fund environment-friendly transportation alternatives, will cost travelers between 1.50 euros ($1.70) and 18 euros ($20), depending on the destination and fare class.

According to the Associated Press, who spoke with Elisabeth Born, France’s transport minister, domestic and European flights will be taxed 1.50 euros for economy fares and 9 euros for business class fares. Business flights traveling outside the EU will be hit the hardest, with France adding on an additional 18 euros.

The new tax is expected to bring in more than 180 million euros ($200 million) in 2020, which will be used to invest in eco-friendly transport.

France isn’t the first to institute an additional flight tax. Italy, Germany, some Nordic nations, and Britain also have ticket taxes, with Britain’s air passenger duty rising to a maximum of 172 pounds ($214.20).

The only flights from France that won’t be taxed are domestic flights to Corsica, France’s overseas territories, and flights connecting through France. Flights arriving into the country will not be taxed.