| Olecko to Bombarral | 1,791.59 mi (2,883.28 km) |
| Olecko to Bougado | 1,670.04 mi (2,687.68 km) |
| Olecko to Braga | 1,654.82 mi (2,663.17 km) |
| Olecko to Braganca | 1,579.39 mi (2,541.78 km) |
| Olecko to Cabeceiras de Basto | 1,640.13 mi (2,639.53 km) |
| Olecko to Cacem | 1,821.86 mi (2,932.00 km) |
| Olecko to Cadaval | 1,791.21 mi (2,882.67 km) |
| Olecko to Caldas da Rainha | 1,784.05 mi (2,871.14 km) |
| Olecko to Calheta | 2,426.93 mi (3,905.76 km) |
| Olecko to Camara de Lobos | 2,421.43 mi (3,896.91 km) |
| Olecko to Canico | 2,419.44 mi (3,893.72 km) |
| Olecko to Cantanhede | 1,718.12 mi (2,765.05 km) |
| Olecko to Carregal do Sal | 1,691.43 mi (2,722.09 km) |
| Olecko to Cartaxo | 1,783.40 mi (2,870.10 km) |
| Olecko to Cascais | 1,829.43 mi (2,944.18 km) |
