| Southend to Cadiz | 1,093.01 mi (1,759.03 km) |
| Southend to Calafell | 716.25 mi (1,152.69 km) |
| Southend to Calahorra | 651.36 mi (1,048.25 km) |
| Southend to Calasparra | 927.68 mi (1,492.95 km) |
| Southend to Calatayud | 713.43 mi (1,148.15 km) |
| Southend to Caldas de Montbuy | 688.66 mi (1,108.29 km) |
| Southend to Caldas de Reyes | 757.40 mi (1,218.93 km) |
| Southend to Calella | 692.49 mi (1,114.45 km) |
| Southend to Callosa de Segura | 930.95 mi (1,498.23 km) |
| Southend to Calpe | 892.23 mi (1,435.91 km) |
| Southend to Calvia | 832.52 mi (1,339.81 km) |
| Southend to Camas | 1,031.42 mi (1,659.91 km) |
| Southend to Cambados | 767.80 mi (1,235.65 km) |
| Southend to Cambre | 709.50 mi (1,141.84 km) |
| Southend to Cambrils | 724.49 mi (1,165.96 km) |
