| Smyrna to Benavente | 4,101.12 mi (6,600.11 km) |
| Smyrna to Bombarral | 4,075.97 mi (6,559.65 km) |
| Smyrna to Bougado | 4,056.75 mi (6,528.71 km) |
| Smyrna to Braga | 4,058.62 mi (6,531.72 km) |
| Smyrna to Braganca | 4,133.27 mi (6,651.86 km) |
| Smyrna to Cabeceiras de Basto | 4,078.67 mi (6,563.98 km) |
| Smyrna to Cacem | 4,080.33 mi (6,566.65 km) |
| Smyrna to Cadaval | 4,079.59 mi (6,565.46 km) |
| Smyrna to Caldas da Rainha | 4,073.61 mi (6,555.84 km) |
| Smyrna to Calheta | 3,816.20 mi (6,141.59 km) |
| Smyrna to Camara de Lobos | 3,827.14 mi (6,159.19 km) |
| Smyrna to Canico | 3,835.42 mi (6,172.51 km) |
| Smyrna to Cantanhede | 4,078.19 mi (6,563.20 km) |
| Smyrna to Carregal do Sal | 4,105.46 mi (6,607.10 km) |
| Smyrna to Cartaxo | 4,097.49 mi (6,594.27 km) |
