| Olecko to Cervello | 1,285.19 mi (2,068.32 km) |
| Olecko to Cervera | 1,294.39 mi (2,083.11 km) |
| Olecko to Ceuti | 1,571.31 mi (2,528.78 km) |
| Olecko to Cheste | 1,475.90 mi (2,375.23 km) |
| Olecko to Chiclana de la Frontera | 1,828.28 mi (2,942.34 km) |
| Olecko to Chipiona | 1,821.40 mi (2,931.26 km) |
| Olecko to Chiva | 1,477.54 mi (2,377.87 km) |
| Olecko to Churriana de la Vega | 1,702.10 mi (2,739.27 km) |
| Olecko to Ciempozuelos | 1,543.06 mi (2,483.32 km) |
| Olecko to Cieza | 1,567.48 mi (2,522.61 km) |
| Olecko to Cisterniga | 1,510.20 mi (2,430.43 km) |
| Olecko to Ciudad de Melilla | 1,781.77 mi (2,867.48 km) |
| Olecko to Ciudad Real | 1,614.05 mi (2,597.56 km) |
| Olecko to Ciudad-Rodrigo | 1,628.58 mi (2,620.95 km) |
| Olecko to Cocentaina | 1,507.34 mi (2,425.83 km) |
