| Olean to Cehegin | 3,920.06 mi (6,308.73 km) |
| Olean to Cervello | 3,978.45 mi (6,402.70 km) |
| Olean to Cervera | 3,938.32 mi (6,338.12 km) |
| Olean to Ceuti | 3,945.25 mi (6,349.26 km) |
| Olean to Cheste | 3,923.94 mi (6,314.97 km) |
| Olean to Chiclana de la Frontera | 3,770.83 mi (6,068.56 km) |
| Olean to Chipiona | 3,746.34 mi (6,029.15 km) |
| Olean to Chiva | 3,922.59 mi (6,312.81 km) |
| Olean to Churriana de la Vega | 3,865.31 mi (6,220.62 km) |
| Olean to Ciempozuelos | 3,765.10 mi (6,059.34 km) |
| Olean to Cieza | 3,932.77 mi (6,329.18 km) |
| Olean to Cisterniga | 3,669.04 mi (5,904.75 km) |
| Olean to Ciudad de Melilla | 3,965.06 mi (6,381.15 km) |
| Olean to Ciudad Real | 3,790.15 mi (6,099.65 km) |
| Olean to Ciudad-Rodrigo | 3,614.90 mi (5,817.61 km) |
