| Poplar Bluff to Arcos de Valdevez | 4,225.59 mi (6,800.43 km) |
| Poplar Bluff to Arcozelo | 4,238.56 mi (6,821.30 km) |
| Poplar Bluff to Arganil | 4,291.32 mi (6,906.22 km) |
| Poplar Bluff to Arouca | 4,260.75 mi (6,857.02 km) |
| Poplar Bluff to Arruda dos Vinhos | 4,280.47 mi (6,888.75 km) |
| Poplar Bluff to Aveiro | 4,250.61 mi (6,840.69 km) |
| Poplar Bluff to Aver-o-Mar | 4,222.20 mi (6,794.97 km) |
| Poplar Bluff to Aves | 4,243.11 mi (6,828.63 km) |
| Poplar Bluff to Azambuja | 4,287.56 mi (6,900.16 km) |
| Poplar Bluff to Baiao | 4,263.73 mi (6,861.82 km) |
| Poplar Bluff to Barcelos | 4,226.03 mi (6,801.13 km) |
| Poplar Bluff to Barreiro | 4,290.15 mi (6,904.33 km) |
| Poplar Bluff to Batalha | 4,273.02 mi (6,876.77 km) |
| Poplar Bluff to Beja | 4,367.10 mi (7,028.18 km) |
| Poplar Bluff to Belas | 4,276.92 mi (6,883.04 km) |
