| Idrija to Alenquer | 1,262.19 mi (2,031.31 km) |
| Idrija to Alfena | 1,170.59 mi (1,883.89 km) |
| Idrija to Alijo | 1,119.70 mi (1,801.98 km) |
| Idrija to Aljustrel | 1,264.01 mi (2,034.23 km) |
| Idrija to Almada | 1,281.65 mi (2,062.62 km) |
| Idrija to Almargem | 1,281.05 mi (2,061.64 km) |
| Idrija to Almeirim | 1,238.44 mi (1,993.07 km) |
| Idrija to Amadora | 1,283.27 mi (2,065.22 km) |
| Idrija to Amarante | 1,148.02 mi (1,847.56 km) |
| Idrija to Amares | 1,151.09 mi (1,852.50 km) |
| Idrija to Amora | 1,281.73 mi (2,062.75 km) |
| Idrija to Anadia | 1,189.84 mi (1,914.86 km) |
| Idrija to Angra do Heroismo | 2,141.47 mi (3,446.36 km) |
| Idrija to Ansiao | 1,206.07 mi (1,940.98 km) |
| Idrija to Anta | 1,181.87 mi (1,902.03 km) |
