| Solon to Cocentaina | 4,121.23 mi (6,632.48 km) |
| Solon to Coin | 3,991.37 mi (6,423.50 km) |
| Solon to Colindres | 3,828.69 mi (6,161.69 km) |
| Solon to Collado-Villalba | 3,891.88 mi (6,263.38 km) |
| Solon to Colmenar Viejo | 3,902.22 mi (6,280.02 km) |
| Solon to Colmenarejo | 3,893.87 mi (6,266.58 km) |
| Solon to Conil de la Frontera | 3,941.26 mi (6,342.85 km) |
| Solon to Consuegra | 3,949.49 mi (6,356.09 km) |
| Solon to Corbera de Llobregat | 4,135.03 mi (6,654.69 km) |
| Solon to Cordoba | 3,947.91 mi (6,353.54 km) |
| Solon to Coria del Rio | 3,907.93 mi (6,289.21 km) |
| Solon to Crevillente | 4,121.74 mi (6,633.30 km) |
| Solon to Cuarte de Huerva | 4,001.43 mi (6,439.68 km) |
| Solon to Cubellas | 4,130.75 mi (6,647.80 km) |
| Solon to Cuellar | 3,852.88 mi (6,200.61 km) |
