| Boom to Bombarral | 1,045.45 mi (1,682.48 km) |
| Boom to Bougado | 911.40 mi (1,466.76 km) |
| Boom to Braga | 895.36 mi (1,440.95 km) |
| Boom to Braganca | 829.62 mi (1,335.14 km) |
| Boom to Cabeceiras de Basto | 883.48 mi (1,421.82 km) |
| Boom to Cacem | 1,078.57 mi (1,735.79 km) |
| Boom to Cadaval | 1,045.77 mi (1,683.01 km) |
| Boom to Caldas da Rainha | 1,036.92 mi (1,668.77 km) |
| Boom to Calheta | 1,671.02 mi (2,689.25 km) |
| Boom to Camara de Lobos | 1,666.64 mi (2,682.20 km) |
| Boom to Canico | 1,665.60 mi (2,680.52 km) |
| Boom to Cantanhede | 967.32 mi (1,556.75 km) |
| Boom to Carregal do Sal | 944.39 mi (1,519.85 km) |
| Boom to Cartaxo | 1,041.15 mi (1,675.57 km) |
| Boom to Cascais | 1,085.86 mi (1,747.52 km) |
