By car
A 6 (E12) Mannheim-Saarbrücken
A 63 Kaiserslautern-Mainz
B 37 Kaiserslautern-Ludwigshafen
B 40 Saarbrücken-Mainz
B 270 Pirmasens-Lauterecken

By train
Train connections to and from Kaiserslautern are efficient and frequent, please check here.

By plane
Airport Saarbrücken-Ensheim. Distance: 1 hour by car or 1.5 hours by bus/train
Airport Frankfurt/Main. Distance: 1.5 hours by car or 1.5 hours by train
Airport Hahn: 1.5 hours by car or 3 hours by bus/train
Airport Zweibrücken. Distance: 1 hour by car or 2 hours by bus/train

Links
City map