| Willoughby to Cadiz | 3,913.53 mi (6,298.22 km) |
| Willoughby to Calafell | 4,116.02 mi (6,624.09 km) |
| Willoughby to Calahorra | 3,920.03 mi (6,308.67 km) |
| Willoughby to Calasparra | 4,071.61 mi (6,552.62 km) |
| Willoughby to Calatayud | 3,966.75 mi (6,383.87 km) |
| Willoughby to Caldas de Montbuy | 4,127.42 mi (6,642.44 km) |
| Willoughby to Caldas de Reyes | 3,607.46 mi (5,805.65 km) |
| Willoughby to Calella | 4,150.01 mi (6,678.80 km) |
| Willoughby to Callosa de Segura | 4,113.63 mi (6,620.25 km) |
| Willoughby to Calpe | 4,137.66 mi (6,658.92 km) |
| Willoughby to Calvia | 4,216.76 mi (6,786.23 km) |
| Willoughby to Camas | 3,896.26 mi (6,270.43 km) |
| Willoughby to Cambados | 3,603.08 mi (5,798.59 km) |
| Willoughby to Cambre | 3,601.38 mi (5,795.86 km) |
| Willoughby to Cambrils | 4,097.73 mi (6,594.66 km) |
