| Sileby to Benavente | 1,019.16 mi (1,640.17 km) |
| Sileby to Bombarral | 1,005.73 mi (1,618.56 km) |
| Sileby to Bougado | 860.83 mi (1,385.38 km) |
| Sileby to Braga | 844.49 mi (1,359.07 km) |
| Sileby to Braganca | 799.35 mi (1,286.43 km) |
| Sileby to Cabeceiras de Basto | 838.17 mi (1,348.91 km) |
| Sileby to Cacem | 1,040.88 mi (1,675.13 km) |
| Sileby to Cadaval | 1,007.00 mi (1,620.61 km) |
| Sileby to Caldas da Rainha | 996.33 mi (1,603.44 km) |
| Sileby to Calheta | 1,596.47 mi (2,569.28 km) |
| Sileby to Camara de Lobos | 1,593.75 mi (2,564.89 km) |
| Sileby to Canico | 1,594.01 mi (2,565.31 km) |
| Sileby to Cantanhede | 925.55 mi (1,489.53 km) |
| Sileby to Carregal do Sal | 909.55 mi (1,463.79 km) |
| Sileby to Cartaxo | 1,006.87 mi (1,620.40 km) |
