| Slough to Benavente | 952.79 mi (1,533.37 km) |
| Slough to Bombarral | 940.86 mi (1,514.16 km) |
| Slough to Bougado | 797.66 mi (1,283.71 km) |
| Slough to Braga | 781.26 mi (1,257.31 km) |
| Slough to Braganca | 730.77 mi (1,176.07 km) |
| Slough to Cabeceiras de Basto | 773.49 mi (1,244.81 km) |
| Slough to Cacem | 975.72 mi (1,570.27 km) |
| Slough to Cadaval | 941.91 mi (1,515.85 km) |
| Slough to Caldas da Rainha | 931.62 mi (1,499.29 km) |
| Slough to Calheta | 1,543.15 mi (2,483.45 km) |
| Slough to Camara de Lobos | 1,539.94 mi (2,478.29 km) |
| Slough to Canico | 1,539.83 mi (2,478.11 km) |
| Slough to Cantanhede | 860.67 mi (1,385.11 km) |
| Slough to Carregal do Sal | 842.90 mi (1,356.52 km) |
| Slough to Cartaxo | 940.71 mi (1,513.93 km) |
