| Donostia to Butzbach | 701.84 mi (1,129.51 km) |
| Donostia to Buxtehude | 880.60 mi (1,417.19 km) |
| Donostia to Cadolzburg | 742.91 mi (1,195.60 km) |
| Donostia to Calbe | 870.42 mi (1,400.81 km) |
| Donostia to Calw | 634.06 mi (1,020.43 km) |
| Donostia to Castrop-Rauxel | 714.44 mi (1,149.79 km) |
| Donostia to Celle | 849.04 mi (1,366.40 km) |
| Donostia to Cham | 806.87 mi (1,298.54 km) |
| Donostia to Chemnitz | 869.58 mi (1,399.46 km) |
| Donostia to Clausthal-Zellerfeld | 818.50 mi (1,317.24 km) |
| Donostia to Cloppenburg | 803.27 mi (1,292.74 km) |
| Donostia to Coburg | 776.25 mi (1,249.25 km) |
| Donostia to Coesfeld | 731.51 mi (1,177.25 km) |
| Donostia to Cologne | 672.24 mi (1,081.86 km) |
| Donostia to Coswig | 905.10 mi (1,456.62 km) |
