| Portales to Cognac | 5,128.95 mi (8,254.25 km) |
| Portales to Cogolin | 5,502.18 mi (8,854.90 km) |
| Portales to Colmar | 5,330.13 mi (8,578.01 km) |
| Portales to Colombes | 5,106.53 mi (8,218.17 km) |
| Portales to Colomiers | 5,277.07 mi (8,492.62 km) |
| Portales to Combs-la-Ville | 5,127.96 mi (8,252.65 km) |
| Portales to Comines | 5,063.45 mi (8,148.84 km) |
| Portales to Compiegne | 5,108.86 mi (8,221.91 km) |
| Portales to Concarneau | 4,905.35 mi (7,894.40 km) |
| Portales to Conde-sur-l'Escaut | 5,096.71 mi (8,202.36 km) |
| Portales to Conflans-Sainte-Honorine | 5,097.82 mi (8,204.15 km) |
| Portales to Corbas | 5,337.56 mi (8,589.97 km) |
| Portales to Corbeil-Essonnes | 5,127.19 mi (8,251.42 km) |
| Portales to Cormeilles-en-Parisis | 5,102.68 mi (8,211.97 km) |
| Portales to Cosne sur Loire | 5,191.14 mi (8,354.33 km) |
