| National City to Cadiz | 5,896.98 mi (9,490.27 km) |
| National City to Calafell | 6,013.81 mi (9,678.30 km) |
| National City to Calahorra | 5,826.60 mi (9,377.01 km) |
| National City to Calasparra | 6,018.91 mi (9,686.50 km) |
| National City to Calatayud | 5,882.05 mi (9,466.24 km) |
| National City to Caldas de Montbuy | 6,016.49 mi (9,682.61 km) |
| National City to Caldas de Reyes | 5,545.56 mi (8,924.72 km) |
| National City to Calella | 6,036.06 mi (9,714.10 km) |
| National City to Callosa de Segura | 6,057.58 mi (9,748.73 km) |
| National City to Calpe | 6,071.48 mi (9,771.10 km) |
| National City to Calvia | 6,126.56 mi (9,859.74 km) |
| National City to Camas | 5,871.69 mi (9,449.57 km) |
| National City to Cambados | 5,543.05 mi (8,920.67 km) |
| National City to Cambre | 5,530.49 mi (8,900.46 km) |
| National City to Cambrils | 6,000.21 mi (9,656.40 km) |
