| Seclin to Calafell | 649.65 mi (1,045.51 km) |
| Seclin to Calahorra | 617.23 mi (993.33 km) |
| Seclin to Calasparra | 882.05 mi (1,419.53 km) |
| Seclin to Calatayud | 673.51 mi (1,083.91 km) |
| Seclin to Caldas de Montbuy | 617.37 mi (993.56 km) |
| Seclin to Caldas de Reyes | 778.31 mi (1,252.56 km) |
| Seclin to Calella | 617.35 mi (993.52 km) |
| Seclin to Callosa de Segura | 879.68 mi (1,415.71 km) |
| Seclin to Calpe | 835.27 mi (1,344.23 km) |
| Seclin to Calvia | 759.26 mi (1,221.90 km) |
| Seclin to Camas | 1,012.18 mi (1,628.94 km) |
| Seclin to Cambados | 789.07 mi (1,269.89 km) |
| Seclin to Cambre | 733.04 mi (1,179.72 km) |
| Seclin to Cambrils | 661.89 mi (1,065.20 km) |
| Seclin to Campo de Criptana | 826.07 mi (1,329.42 km) |
