| Sammamish to Cocentaina | 5,475.31 mi (8,811.65 km) |
| Sammamish to Coin | 5,449.56 mi (8,770.21 km) |
| Sammamish to Colindres | 5,124.23 mi (8,246.66 km) |
| Sammamish to Collado-Villalba | 5,257.25 mi (8,460.73 km) |
| Sammamish to Colmenar Viejo | 5,263.64 mi (8,471.00 km) |
| Sammamish to Colmenarejo | 5,260.93 mi (8,466.65 km) |
| Sammamish to Conil de la Frontera | 5,425.82 mi (8,732.01 km) |
| Sammamish to Consuegra | 5,334.33 mi (8,584.77 km) |
| Sammamish to Corbera de Llobregat | 5,397.15 mi (8,685.88 km) |
| Sammamish to Cordoba | 5,382.01 mi (8,661.50 km) |
| Sammamish to Coria del Rio | 5,371.81 mi (8,645.10 km) |
| Sammamish to Crevillente | 5,491.45 mi (8,837.63 km) |
| Sammamish to Cuarte de Huerva | 5,301.99 mi (8,532.72 km) |
| Sammamish to Cubellas | 5,401.22 mi (8,692.42 km) |
| Sammamish to Cuellar | 5,205.64 mi (8,377.67 km) |
