If you look at this article[0], the subsidies can be 100€ per passenger [0] https://www.lechotouristique.com/article/il-y-a-trop-d-aeroports-en-france,62131 htt

If you look at this article[0], the subsidies can be 100€ per passenger [0] https://www.lechotouristique.com/article/il-y-a-trop-d-aeroports-en-france,62131 https://www.lechotouristique.com/article/il-y-a-trop-d-aerop... (french)