| Seclin to Carovigno | 978.15 mi (1,574.19 km) |
| Seclin to Carpenedolo | 495.08 mi (796.76 km) |
| Seclin to Carpi | 539.98 mi (869.02 km) |
| Seclin to Carrara | 555.77 mi (894.43 km) |
| Seclin to Carugate | 451.38 mi (726.42 km) |
| Seclin to Casal di Principe | 846.62 mi (1,362.50 km) |
| Seclin to Casale Monferrato | 450.64 mi (725.23 km) |
| Seclin to Casale sul Sile | 548.28 mi (882.38 km) |
| Seclin to Casalecchio di Reno | 568.49 mi (914.90 km) |
| Seclin to Casalgrande | 546.09 mi (878.85 km) |
| Seclin to Casalmaggiore | 514.61 mi (828.19 km) |
| Seclin to Casalnuovo di Napoli | 858.79 mi (1,382.09 km) |
| Seclin to Casalpusterlengo | 481.14 mi (774.32 km) |
| Seclin to Casaluce | 849.57 mi (1,367.25 km) |
| Seclin to Casamassima | 939.47 mi (1,511.94 km) |
