| Williamstown to Cabestany | 3,906.83 mi (6,287.44 km) |
| Williamstown to Cabries | 3,994.47 mi (6,428.48 km) |
| Williamstown to Cachan | 3,711.38 mi (5,972.88 km) |
| Williamstown to Caen | 3,587.22 mi (5,773.07 km) |
| Williamstown to Cagnes-sur-Mer | 4,066.71 mi (6,544.73 km) |
| Williamstown to Cahors | 3,787.52 mi (6,095.43 km) |
| Williamstown to Calais | 3,639.45 mi (5,857.13 km) |
| Williamstown to Caluire-et-Cuire | 3,900.83 mi (6,277.77 km) |
| Williamstown to Cambrai | 3,714.69 mi (5,978.22 km) |
| Williamstown to Canet-en-Roussillon | 3,909.03 mi (6,290.98 km) |
| Williamstown to Cannes | 4,064.20 mi (6,540.69 km) |
| Williamstown to Canteleu | 3,640.45 mi (5,858.73 km) |
| Williamstown to Capbreton | 3,678.54 mi (5,920.04 km) |
| Williamstown to Carcassonne | 3,864.10 mi (6,218.67 km) |
| Williamstown to Carmaux | 3,831.17 mi (6,165.67 km) |
