| Poplar Bluff to Benavente | 4,293.83 mi (6,910.25 km) |
| Poplar Bluff to Bombarral | 4,267.55 mi (6,867.96 km) |
| Poplar Bluff to Bougado | 4,234.02 mi (6,814.00 km) |
| Poplar Bluff to Braga | 4,234.24 mi (6,814.36 km) |
| Poplar Bluff to Braganca | 4,303.91 mi (6,926.48 km) |
| Poplar Bluff to Cabeceiras de Basto | 4,253.60 mi (6,845.50 km) |
| Poplar Bluff to Cacem | 4,275.31 mi (6,880.44 km) |
| Poplar Bluff to Cadaval | 4,271.26 mi (6,873.94 km) |
| Poplar Bluff to Caldas da Rainha | 4,264.28 mi (6,862.69 km) |
| Poplar Bluff to Calheta | 4,063.63 mi (6,539.79 km) |
| Poplar Bluff to Camara de Lobos | 4,074.35 mi (6,557.03 km) |
| Poplar Bluff to Canico | 4,082.66 mi (6,570.41 km) |
| Poplar Bluff to Cantanhede | 4,261.85 mi (6,858.78 km) |
| Poplar Bluff to Carregal do Sal | 4,287.35 mi (6,899.83 km) |
| Poplar Bluff to Cartaxo | 4,289.03 mi (6,902.52 km) |
