| Olecko to Cognac | 1,161.08 mi (1,868.58 km) |
| Olecko to Cogolin | 1,037.70 mi (1,670.02 km) |
| Olecko to Colmar | 773.28 mi (1,244.47 km) |
| Olecko to Colombes | 935.99 mi (1,506.34 km) |
| Olecko to Colomiers | 1,194.37 mi (1,922.16 km) |
| Olecko to Combs-la-Ville | 932.76 mi (1,501.13 km) |
| Olecko to Comines | 849.26 mi (1,366.75 km) |
| Olecko to Compiegne | 896.96 mi (1,443.52 km) |
| Olecko to Concarneau | 1,217.37 mi (1,959.18 km) |
| Olecko to Conde-sur-l'Escaut | 834.55 mi (1,343.09 km) |
| Olecko to Conflans-Sainte-Honorine | 939.48 mi (1,511.95 km) |
| Olecko to Corbas | 969.63 mi (1,560.47 km) |
| Olecko to Corbeil-Essonnes | 937.81 mi (1,509.26 km) |
| Olecko to Cormeilles-en-Parisis | 936.27 mi (1,506.79 km) |
| Olecko to Cosne sur Loire | 966.34 mi (1,555.17 km) |
