| Onda to Cognac | 396.15 mi (637.54 km) |
| Onda to Cogolin | 417.95 mi (672.63 km) |
| Onda to Colmar | 676.01 mi (1,087.94 km) |
| Onda to Colombes | 631.37 mi (1,016.10 km) |
| Onda to Colomiers | 265.41 mi (427.13 km) |
| Onda to Combs-la-Ville | 617.50 mi (993.76 km) |
| Onda to Comines | 762.63 mi (1,227.33 km) |
| Onda to Compiegne | 670.31 mi (1,078.77 km) |
| Onda to Concarneau | 576.01 mi (927.00 km) |
| Onda to Conde-sur-l'Escaut | 748.19 mi (1,204.10 km) |
| Onda to Conflans-Sainte-Honorine | 635.05 mi (1,022.02 km) |
| Onda to Corbas | 473.01 mi (761.23 km) |
| Onda to Corbeil-Essonnes | 612.88 mi (986.33 km) |
| Onda to Cormeilles-en-Parisis | 634.29 mi (1,020.79 km) |
| Onda to Cosne sur Loire | 538.57 mi (866.74 km) |
