The calculated distance (air line) between Saarbrücken and Landau in der Pfalz is approximately 50 miles respectively 81 kilometers.
By car or train, the actual journey to Landau in der Pfalz is certainly longer, as only the direct route (as the crow flies) between Saarbrücken and Landau in der Pfalz has been calculated here.
Air line (approximately)
81 kilometers
43 nautical miles