| Oskaloosa to Arcos de Valdevez | 4,161.13 mi (6,696.69 km) |
| Oskaloosa to Arcozelo | 4,179.21 mi (6,725.78 km) |
| Oskaloosa to Arganil | 4,235.42 mi (6,816.25 km) |
| Oskaloosa to Arouca | 4,201.18 mi (6,761.15 km) |
| Oskaloosa to Arruda dos Vinhos | 4,234.13 mi (6,814.18 km) |
| Oskaloosa to Aveiro | 4,193.73 mi (6,749.16 km) |
| Oskaloosa to Aver-o-Mar | 4,161.13 mi (6,696.68 km) |
| Oskaloosa to Aves | 4,180.75 mi (6,728.26 km) |
| Oskaloosa to Azambuja | 4,240.25 mi (6,824.02 km) |
| Oskaloosa to Baiao | 4,202.32 mi (6,762.99 km) |
| Oskaloosa to Barcelos | 4,163.94 mi (6,701.22 km) |
| Oskaloosa to Barreiro | 4,245.63 mi (6,832.69 km) |
| Oskaloosa to Batalha | 4,222.19 mi (6,794.96 km) |
| Oskaloosa to Beja | 4,323.21 mi (6,957.54 km) |
| Oskaloosa to Belas | 4,232.29 mi (6,811.21 km) |
