The nearest airport is GKE - Geilenkirchen, located 17.6 km south east of Slek.
Other airports nearby include MST - Maastricht (20.7 km south west), MGL - Moenchengladbach Monchengladbach (46.4 km east), EIN - Eindhoven (54.1 km north west), LGG - Liege (58.5 km south west),