| Seclin to Chitila | 1,143.49 mi (1,840.27 km) |
| Seclin to Cisnadie | 1,025.52 mi (1,650.42 km) |
| Seclin to Cluj-Napoca | 970.25 mi (1,561.46 km) |
| Seclin to Codlea | 1,081.91 mi (1,741.16 km) |
| Seclin to Comanesti | 1,104.45 mi (1,777.44 km) |
| Seclin to Comarnic | 1,104.08 mi (1,776.84 km) |
| Seclin to Constanta | 1,269.19 mi (2,042.57 km) |
| Seclin to Corabia | 1,106.84 mi (1,781.29 km) |
| Seclin to Costesti | 1,090.84 mi (1,755.53 km) |
| Seclin to Covasna | 1,109.51 mi (1,785.58 km) |
| Seclin to Craiova | 1,057.45 mi (1,701.80 km) |
| Seclin to Cristuru Secuiesc | 1,046.64 mi (1,684.40 km) |
| Seclin to Cugir | 987.56 mi (1,589.32 km) |
| Seclin to Cumpana | 1,267.68 mi (2,040.13 km) |
| Seclin to Curtea de Arges | 1,066.53 mi (1,716.42 km) |
