| Smithville to Arcos de Valdevez | 4,317.30 mi (6,948.03 km) |
| Smithville to Arcozelo | 4,334.50 mi (6,975.70 km) |
| Smithville to Arganil | 4,390.13 mi (7,065.23 km) |
| Smithville to Arouca | 4,356.53 mi (7,011.15 km) |
| Smithville to Arruda dos Vinhos | 4,387.03 mi (7,060.25 km) |
| Smithville to Aveiro | 4,348.59 mi (6,998.38 km) |
| Smithville to Aver-o-Mar | 4,316.71 mi (6,947.08 km) |
| Smithville to Aves | 4,336.57 mi (6,979.04 km) |
| Smithville to Azambuja | 4,393.34 mi (7,070.40 km) |
| Smithville to Baiao | 4,358.00 mi (7,013.52 km) |
| Smithville to Barcelos | 4,319.71 mi (6,951.90 km) |
| Smithville to Barreiro | 4,398.18 mi (7,078.19 km) |
| Smithville to Batalha | 4,375.94 mi (7,042.40 km) |
| Smithville to Beja | 4,475.69 mi (7,202.93 km) |
| Smithville to Belas | 4,384.85 mi (7,056.74 km) |
