| Willimantic to Cehegin | 3,633.77 mi (5,847.99 km) |
| Willimantic to Cervello | 3,706.54 mi (5,965.10 km) |
| Willimantic to Cervera | 3,666.39 mi (5,900.48 km) |
| Willimantic to Ceuti | 3,659.55 mi (5,889.47 km) |
| Willimantic to Cheste | 3,642.89 mi (5,862.66 km) |
| Willimantic to Chiclana de la Frontera | 3,475.35 mi (5,593.03 km) |
| Willimantic to Chipiona | 3,451.33 mi (5,554.37 km) |
| Willimantic to Chiva | 3,641.48 mi (5,860.39 km) |
| Willimantic to Churriana de la Vega | 3,574.40 mi (5,752.44 km) |
| Willimantic to Ciempozuelos | 3,482.55 mi (5,604.63 km) |
| Willimantic to Cieza | 3,647.33 mi (5,869.81 km) |
| Willimantic to Cisterniga | 3,389.78 mi (5,455.32 km) |
| Willimantic to Ciudad de Melilla | 3,670.38 mi (5,906.90 km) |
| Willimantic to Ciudad Real | 3,503.85 mi (5,638.90 km) |
| Willimantic to Ciudad-Rodrigo | 3,330.37 mi (5,359.70 km) |
