| Aiken to Benavente | 3,971.19 mi (6,391.01 km) |
| Aiken to Bombarral | 3,946.43 mi (6,351.16 km) |
| Aiken to Bougado | 3,931.54 mi (6,327.20 km) |
| Aiken to Braga | 3,933.91 mi (6,331.02 km) |
| Aiken to Braganca | 4,009.93 mi (6,453.37 km) |
| Aiken to Cabeceiras de Basto | 3,954.13 mi (6,363.55 km) |
| Aiken to Cacem | 3,949.77 mi (6,356.54 km) |
| Aiken to Cadaval | 3,950.00 mi (6,356.91 km) |
| Aiken to Caldas da Rainha | 3,944.33 mi (6,347.79 km) |
| Aiken to Calheta | 3,671.65 mi (5,908.95 km) |
| Aiken to Camara de Lobos | 3,682.63 mi (5,926.62 km) |
| Aiken to Canico | 3,690.89 mi (5,939.91 km) |
| Aiken to Cantanhede | 3,950.99 mi (6,358.51 km) |
| Aiken to Carregal do Sal | 3,978.74 mi (6,403.17 km) |
| Aiken to Cartaxo | 3,967.91 mi (6,385.73 km) |
