| Sammamish to Carmona | 5,376.03 mi (8,651.88 km) |
| Sammamish to Cartagena | 5,522.22 mi (8,887.15 km) |
| Sammamish to Cartama | 5,451.15 mi (8,772.77 km) |
| Sammamish to Cartaya | 5,334.10 mi (8,584.40 km) |
| Sammamish to Caspe | 5,348.50 mi (8,607.59 km) |
| Sammamish to Cassa de la Selva | 5,397.95 mi (8,687.16 km) |
| Sammamish to Castalla | 5,476.35 mi (8,813.33 km) |
| Sammamish to Castellbisbal | 5,395.26 mi (8,682.84 km) |
| Sammamish to Castelldefels | 5,406.26 mi (8,700.53 km) |
| Sammamish to Castello de Ampurias | 5,382.72 mi (8,662.65 km) |
| Sammamish to Castellon de la Plana | 5,418.59 mi (8,720.37 km) |
| Sammamish to Castilleja de la Cuesta | 5,366.39 mi (8,636.38 km) |
| Sammamish to Catarroja | 5,439.58 mi (8,754.16 km) |
| Sammamish to Catral | 5,496.57 mi (8,845.87 km) |
| Sammamish to Caudete | 5,460.27 mi (8,787.45 km) |
