| Donostia to Celano | 792.35 mi (1,275.16 km) |
| Donostia to Cento | 665.34 mi (1,070.76 km) |
| Donostia to Cepagatti | 814.33 mi (1,310.54 km) |
| Donostia to Ceprano | 798.45 mi (1,284.98 km) |
| Donostia to Cercola | 852.77 mi (1,372.40 km) |
| Donostia to Cerea | 665.01 mi (1,070.23 km) |
| Donostia to Cerese | 641.24 mi (1,031.98 km) |
| Donostia to Cerignola | 922.94 mi (1,485.33 km) |
| Donostia to Cermenate | 568.83 mi (915.45 km) |
| Donostia to Cernusco sul Naviglio | 578.01 mi (930.22 km) |
| Donostia to Cerreto Guidi | 644.32 mi (1,036.93 km) |
| Donostia to Cerro Maggiore | 561.04 mi (902.91 km) |
| Donostia to Certaldo | 652.83 mi (1,050.64 km) |
| Donostia to Cerveteri | 720.32 mi (1,159.25 km) |
| Donostia to Cervia | 717.05 mi (1,153.98 km) |
