| Sonsbeck to Chitila | 1,025.17 mi (1,649.86 km) |
| Sonsbeck to Cisnadie | 904.50 mi (1,455.65 km) |
| Sonsbeck to Cluj-Napoca | 843.37 mi (1,357.27 km) |
| Sonsbeck to Codlea | 957.63 mi (1,541.16 km) |
| Sonsbeck to Comanesti | 973.50 mi (1,566.69 km) |
| Sonsbeck to Comarnic | 982.11 mi (1,580.56 km) |
| Sonsbeck to Constanta | 1,146.05 mi (1,844.39 km) |
| Sonsbeck to Corabia | 997.70 mi (1,605.65 km) |
| Sonsbeck to Costesti | 974.67 mi (1,568.58 km) |
| Sonsbeck to Covasna | 982.56 mi (1,581.27 km) |
| Sonsbeck to Craiova | 946.91 mi (1,523.91 km) |
| Sonsbeck to Cristuru Secuiesc | 919.55 mi (1,479.87 km) |
| Sonsbeck to Cugir | 867.83 mi (1,396.64 km) |
| Sonsbeck to Cumpana | 1,145.00 mi (1,842.70 km) |
| Sonsbeck to Curtea de Arges | 947.88 mi (1,525.47 km) |
