| Belfast to Benavente | 1,088.18 mi (1,751.25 km) |
| Belfast to Bombarral | 1,069.67 mi (1,721.47 km) |
| Belfast to Bougado | 924.00 mi (1,487.04 km) |
| Belfast to Braga | 908.55 mi (1,462.17 km) |
| Belfast to Braganca | 884.49 mi (1,423.45 km) |
| Belfast to Cabeceiras de Basto | 907.60 mi (1,460.63 km) |
| Belfast to Cacem | 1,104.81 mi (1,778.01 km) |
| Belfast to Cadaval | 1,071.70 mi (1,724.73 km) |
| Belfast to Caldas da Rainha | 1,060.00 mi (1,705.91 km) |
| Belfast to Calheta | 1,607.47 mi (2,586.97 km) |
| Belfast to Camara de Lobos | 1,606.40 mi (2,585.25 km) |
| Belfast to Canico | 1,607.91 mi (2,587.68 km) |
| Belfast to Cantanhede | 992.24 mi (1,596.85 km) |
| Belfast to Carregal do Sal | 983.22 mi (1,582.34 km) |
| Belfast to Cartaxo | 1,075.49 mi (1,730.83 km) |
