| Olecko to Coin | 1,766.06 mi (2,842.19 km) |
| Olecko to Colindres | 1,380.66 mi (2,221.96 km) |
| Olecko to Collado-Villalba | 1,533.37 mi (2,467.72 km) |
| Olecko to Colmenar Viejo | 1,523.28 mi (2,451.49 km) |
| Olecko to Colmenarejo | 1,537.29 mi (2,474.04 km) |
| Olecko to Conil de la Frontera | 1,833.99 mi (2,951.52 km) |
| Olecko to Consuegra | 1,578.27 mi (2,539.98 km) |
| Olecko to Corbera de Llobregat | 1,285.02 mi (2,068.05 km) |
| Olecko to Cordoba | 1,702.05 mi (2,739.19 km) |
| Olecko to Coria del Rio | 1,778.70 mi (2,862.54 km) |
| Olecko to Crevillente | 1,546.64 mi (2,489.08 km) |
| Olecko to Cuarte de Huerva | 1,374.79 mi (2,212.51 km) |
| Olecko to Cubellas | 1,304.58 mi (2,099.52 km) |
| Olecko to Cuellar | 1,506.88 mi (2,425.09 km) |
| Olecko to Cuenca | 1,495.63 mi (2,406.98 km) |
