| Williamstown to Cehegin | 3,821.11 mi (6,149.49 km) |
| Williamstown to Cervello | 3,899.90 mi (6,276.28 km) |
| Williamstown to Cervera | 3,859.76 mi (6,211.69 km) |
| Williamstown to Ceuti | 3,847.17 mi (6,191.42 km) |
| Williamstown to Cheste | 3,832.74 mi (6,168.19 km) |
| Williamstown to Chiclana de la Frontera | 3,657.26 mi (5,885.79 km) |
| Williamstown to Chipiona | 3,633.59 mi (5,847.70 km) |
| Williamstown to Chiva | 3,831.29 mi (6,165.87 km) |
| Williamstown to Churriana de la Vega | 3,759.20 mi (6,049.84 km) |
| Williamstown to Ciempozuelos | 3,671.85 mi (5,909.27 km) |
| Williamstown to Cieza | 3,835.10 mi (6,171.99 km) |
| Williamstown to Cisterniga | 3,580.58 mi (5,762.39 km) |
| Williamstown to Ciudad de Melilla | 3,852.67 mi (6,200.27 km) |
| Williamstown to Ciudad Real | 3,691.29 mi (5,940.56 km) |
| Williamstown to Ciudad-Rodrigo | 3,518.84 mi (5,663.03 km) |
