| Donostia to Brezovica | 825.44 mi (1,328.42 km) |
| Donostia to Cankova | 907.59 mi (1,460.63 km) |
| Donostia to Celje | 867.67 mi (1,396.38 km) |
| Donostia to Cerklje na Gorenjskem | 830.76 mi (1,336.97 km) |
| Donostia to Cerknica | 820.79 mi (1,320.94 km) |
| Donostia to Cerkno | 806.18 mi (1,297.43 km) |
| Donostia to Cerkvenjak | 902.57 mi (1,452.54 km) |
| Donostia to Cirkulane | 903.01 mi (1,453.26 km) |
| Donostia to Crensovci | 919.16 mi (1,479.25 km) |
| Donostia to Crna na Koroskem | 850.14 mi (1,368.17 km) |
| Donostia to Crnomelj | 859.31 mi (1,382.92 km) |
| Donostia to Destrnik | 898.92 mi (1,446.68 km) |
| Donostia to Divaca | 801.35 mi (1,289.65 km) |
| Donostia to Dobje | 872.88 mi (1,404.76 km) |
| Donostia to Dobrna | 866.78 mi (1,394.94 km) |
