The calculated distance (air line) between Zumarraga and Aretxabaleta is approximately 10 miles respectively 17 kilometers.
By car or train, the actual journey to Aretxabaleta is certainly longer, as only the direct route (as the crow flies) between Zumarraga and Aretxabaleta has been calculated here.
Air line (approximately)
17 kilometers
9 nautical miles