| Oregon to Alenquer | 3,795.19 mi (6,107.77 km) |
| Oregon to Alfena | 3,747.53 mi (6,031.07 km) |
| Oregon to Alijo | 3,794.73 mi (6,107.03 km) |
| Oregon to Aljustrel | 3,873.31 mi (6,233.48 km) |
| Oregon to Almada | 3,800.70 mi (6,116.63 km) |
| Oregon to Almargem | 3,789.82 mi (6,099.13 km) |
| Oregon to Almeirim | 3,809.10 mi (6,130.16 km) |
| Oregon to Amadora | 3,795.39 mi (6,108.10 km) |
| Oregon to Amarante | 3,767.79 mi (6,063.67 km) |
| Oregon to Amares | 3,744.44 mi (6,026.09 km) |
| Oregon to Amora | 3,804.34 mi (6,122.50 km) |
| Oregon to Anadia | 3,777.49 mi (6,079.29 km) |
| Oregon to Angra do Heroismo | 2,922.87 mi (4,703.90 km) |
| Oregon to Ansiao | 3,794.23 mi (6,106.22 km) |
| Oregon to Anta | 3,750.24 mi (6,035.42 km) |
