| Donostia to Casamassima | 979.77 mi (1,576.79 km) |
| Donostia to Casandrino | 846.45 mi (1,362.22 km) |
| Donostia to Casapulla | 845.52 mi (1,360.74 km) |
| Donostia to Casarano | 1,061.78 mi (1,708.78 km) |
| Donostia to Casatenovo | 579.56 mi (932.71 km) |
| Donostia to Casciana Terme | 631.81 mi (1,016.79 km) |
| Donostia to Cascina | 627.87 mi (1,010.46 km) |
| Donostia to Caselle Torinese | 493.08 mi (793.53 km) |
| Donostia to Caserta | 848.03 mi (1,364.77 km) |
| Donostia to Casier | 721.03 mi (1,160.38 km) |
| Donostia to Casorate Primo | 560.35 mi (901.79 km) |
| Donostia to Casoria | 849.61 mi (1,367.31 km) |
| Donostia to Cassano al Ionio | 974.90 mi (1,568.95 km) |
| Donostia to Cassano d'Adda | 586.95 mi (944.60 km) |
| Donostia to Cassano delle Murge | 973.52 mi (1,566.72 km) |
