From Brussels or Luxembourg, take the E411 till Exit 25 (Libramont). Then take the N89, towards La Roche, for approximately 15 km. Exit at aerodrome, to the right.
Alternative route : take the N4 till Barrière de Champlon. From there, take the N89 towards Bouillon. Exit at aerodrome, to the right at Saint-Hubert then take a left (passing under the N89 bridge).