| Willoughby to Castrovillari | 4,804.88 mi (7,732.70 km) |
| Willoughby to Catania | 4,855.82 mi (7,814.68 km) |
| Willoughby to Catanzaro | 4,860.70 mi (7,822.55 km) |
| Willoughby to Cattolica | 4,491.60 mi (7,228.53 km) |
| Willoughby to Cava de' Tirreni | 4,704.98 mi (7,571.94 km) |
| Willoughby to Cavallino | 4,866.68 mi (7,832.17 km) |
| Willoughby to Cavarzere | 4,419.54 mi (7,112.57 km) |
| Willoughby to Cave | 4,585.37 mi (7,379.44 km) |
| Willoughby to Cavriago | 4,373.13 mi (7,037.87 km) |
| Willoughby to Cavriglia | 4,457.74 mi (7,174.05 km) |
| Willoughby to Cazzago San Martino | 4,319.23 mi (6,951.14 km) |
| Willoughby to Ceccano | 4,612.21 mi (7,422.63 km) |
| Willoughby to Cecina | 4,425.28 mi (7,121.80 km) |
| Willoughby to Cefalu | 4,786.88 mi (7,703.74 km) |
| Willoughby to Ceglie Messapico | 4,823.55 mi (7,762.75 km) |
