| Houghton Regis to Benavente | 978.28 mi (1,574.39 km) |
| Houghton Regis to Bombarral | 966.07 mi (1,554.74 km) |
| Houghton Regis to Bougado | 822.49 mi (1,323.67 km) |
| Houghton Regis to Braga | 806.09 mi (1,297.28 km) |
| Houghton Regis to Braganca | 756.60 mi (1,217.63 km) |
| Houghton Regis to Cabeceiras de Basto | 798.60 mi (1,285.23 km) |
| Houghton Regis to Cacem | 1,000.99 mi (1,610.94 km) |
| Houghton Regis to Cadaval | 967.16 mi (1,556.49 km) |
| Houghton Regis to Caldas da Rainha | 956.79 mi (1,539.81 km) |
| Houghton Regis to Calheta | 1,566.11 mi (2,520.41 km) |
| Houghton Regis to Camara de Lobos | 1,563.00 mi (2,515.41 km) |
| Houghton Regis to Canico | 1,562.98 mi (2,515.37 km) |
| Houghton Regis to Cantanhede | 885.85 mi (1,425.65 km) |
| Houghton Regis to Carregal do Sal | 868.42 mi (1,397.58 km) |
| Houghton Regis to Cartaxo | 966.16 mi (1,554.89 km) |
