| Allentown to Benavente | 3,453.72 mi (5,558.22 km) |
| Allentown to Bombarral | 3,427.80 mi (5,516.51 km) |
| Allentown to Bougado | 3,399.91 mi (5,471.62 km) |
| Allentown to Braga | 3,400.88 mi (5,473.19 km) |
| Allentown to Braganca | 3,473.02 mi (5,589.29 km) |
| Allentown to Cabeceiras de Basto | 3,420.58 mi (5,504.89 km) |
| Allentown to Cacem | 3,434.44 mi (5,527.20 km) |
| Allentown to Cadaval | 3,431.48 mi (5,522.43 km) |
| Allentown to Caldas da Rainha | 3,424.84 mi (5,511.74 km) |
| Allentown to Calheta | 3,218.24 mi (5,179.25 km) |
| Allentown to Camara de Lobos | 3,228.90 mi (5,196.42 km) |
| Allentown to Canico | 3,237.22 mi (5,209.80 km) |
| Allentown to Cantanhede | 3,425.04 mi (5,512.07 km) |
| Allentown to Carregal do Sal | 3,451.30 mi (5,554.34 km) |
| Allentown to Cartaxo | 3,449.31 mi (5,551.13 km) |
