The nearest airports are Frankfurt (the large international airport), Hahn (west of Frankfurt, servicing primarily budget airlines like Ryan Air), Luxemborg, Saarbrücken and Zweibrücken (two regional airports servicing smaller carriers). Saarbrücken is the nearest of these at 55km away (45 minutes by train) while both Frankfurt and Luxemburg airports are approximately 120km away.
A private shuttle service is available for door-to-door service from Frankfurt to Kaiserslautern and back again. Vans and station wagons are available if you have lots of luggage, but book the service ahead of time to avoid long waits. Prices range from €39 to €73 for single and return trips. Inform ahead of time about exact prices at
Van Service Di Liberto (tel. 06337 66 37, www.van-service.de).