In the immediate environs of Fitou, there are the airports of Perpignan (25 kilometres), Carcassonne (90 kilometres), Girona (120 kilometres) and Montpellier (129 kilometres), which are approached by numerous cheap Airlines.
A bit further away, there are the airports of Toulouse (approx. 200 kilometres) and Barcelona (approx. 220 kilometres).
If you travel by plane, you should book a car in advance to be mobile on the spot.