| Bonn to Chitila | 975.15 mi (1,569.36 km) |
| Bonn to Cisnadie | 855.55 mi (1,376.87 km) |
| Bonn to Cluj-Napoca | 797.30 mi (1,283.13 km) |
| Bonn to Codlea | 910.36 mi (1,465.09 km) |
| Bonn to Comanesti | 929.91 mi (1,496.54 km) |
| Bonn to Comarnic | 933.73 mi (1,502.70 km) |
| Bonn to Constanta | 1,098.43 mi (1,767.76 km) |
| Bonn to Corabia | 943.88 mi (1,519.03 km) |
| Bonn to Costesti | 923.63 mi (1,486.44 km) |
| Bonn to Covasna | 936.72 mi (1,507.51 km) |
| Bonn to Craiova | 893.54 mi (1,438.01 km) |
| Bonn to Cristuru Secuiesc | 873.71 mi (1,406.10 km) |
| Bonn to Cugir | 818.21 mi (1,316.78 km) |
| Bonn to Cumpana | 1,097.16 mi (1,765.71 km) |
| Bonn to Curtea de Arges | 897.90 mi (1,445.03 km) |
