| Seia to Castrovillari | 1,259.74 mi (2,027.36 km) |
| Seia to Catania | 1,237.51 mi (1,991.57 km) |
| Seia to Catanzaro | 1,292.84 mi (2,080.62 km) |
| Seia to Cattolica | 1,071.36 mi (1,724.19 km) |
| Seia to Cava de' Tirreni | 1,172.89 mi (1,887.58 km) |
| Seia to Cavallino | 1,358.63 mi (2,186.50 km) |
| Seia to Cavarzere | 1,051.71 mi (1,692.56 km) |
| Seia to Cave | 1,075.82 mi (1,731.36 km) |
| Seia to Cavriago | 971.53 mi (1,563.53 km) |
| Seia to Cavriglia | 1,006.09 mi (1,619.15 km) |
| Seia to Cazzago San Martino | 961.57 mi (1,547.50 km) |
| Seia to Ceccano | 1,097.13 mi (1,765.67 km) |
| Seia to Cecina | 956.44 mi (1,539.24 km) |
| Seia to Cefalu | 1,171.09 mi (1,884.68 km) |
| Seia to Ceglie Messapico | 1,318.94 mi (2,122.62 km) |
