| West Islip to Cognac | 3,561.83 mi (5,732.22 km) |
| West Islip to Cogolin | 3,939.44 mi (6,339.92 km) |
| West Islip to Colmar | 3,829.24 mi (6,162.56 km) |
| West Islip to Colombes | 3,591.49 mi (5,779.95 km) |
| West Islip to Colomiers | 3,694.10 mi (5,945.08 km) |
| West Islip to Combs-la-Ville | 3,610.94 mi (5,811.25 km) |
| West Islip to Comines | 3,577.83 mi (5,757.96 km) |
| West Islip to Compiegne | 3,603.22 mi (5,798.82 km) |
| West Islip to Concarneau | 3,350.10 mi (5,391.47 km) |
| West Islip to Conde-sur-l'Escaut | 3,609.34 mi (5,808.68 km) |
| West Islip to Conflans-Sainte-Honorine | 3,583.10 mi (5,766.44 km) |
| West Islip to Corbas | 3,793.99 mi (6,105.84 km) |
| West Islip to Corbeil-Essonnes | 3,609.06 mi (5,808.22 km) |
| West Islip to Cormeilles-en-Parisis | 3,588.09 mi (5,774.47 km) |
| West Islip to Cosne sur Loire | 3,659.42 mi (5,889.26 km) |
