| Willimantic to Cortona | 4,094.68 mi (6,589.74 km) |
| Willimantic to Cosenza | 4,428.03 mi (7,126.23 km) |
| Willimantic to Cossato | 3,853.31 mi (6,201.30 km) |
| Willimantic to Costa Volpino | 3,927.59 mi (6,320.85 km) |
| Willimantic to Creazzo | 3,996.14 mi (6,431.17 km) |
| Willimantic to Crema | 3,924.85 mi (6,316.44 km) |
| Willimantic to Cremona | 3,947.47 mi (6,352.84 km) |
| Willimantic to Crevalcore | 4,009.21 mi (6,452.20 km) |
| Willimantic to Crispiano | 4,421.17 mi (7,115.19 km) |
| Willimantic to Crosia | 4,440.59 mi (7,146.43 km) |
| Willimantic to Crotone | 4,474.84 mi (7,201.56 km) |
| Willimantic to Cuneo | 3,864.05 mi (6,218.59 km) |
| Willimantic to Cuorgne | 3,836.56 mi (6,174.35 km) |
| Willimantic to Cusano Milanino | 3,897.51 mi (6,272.44 km) |
| Willimantic to Cutro | 4,470.87 mi (7,195.17 km) |
