| Oroville to Arcos de Valdevez | 5,427.63 mi (8,734.93 km) |
| Oroville to Arcozelo | 5,457.08 mi (8,782.33 km) |
| Oroville to Arganil | 5,519.30 mi (8,882.46 km) |
| Oroville to Arouca | 5,477.76 mi (8,815.61 km) |
| Oroville to Arruda dos Vinhos | 5,539.52 mi (8,915.00 km) |
| Oroville to Aveiro | 5,476.82 mi (8,814.08 km) |
| Oroville to Aver-o-Mar | 5,435.62 mi (8,747.78 km) |
| Oroville to Aves | 5,451.49 mi (8,773.33 km) |
| Oroville to Azambuja | 5,543.30 mi (8,921.08 km) |
| Oroville to Baiao | 5,474.55 mi (8,810.44 km) |
| Oroville to Barcelos | 5,435.97 mi (8,748.35 km) |
| Oroville to Barreiro | 5,554.63 mi (8,939.31 km) |
| Oroville to Batalha | 5,518.02 mi (8,880.39 km) |
| Oroville to Beja | 5,631.14 mi (9,062.45 km) |
| Oroville to Belas | 5,541.45 mi (8,918.10 km) |
