| Siegburg to Alfena | 999.36 mi (1,608.32 km) |
| Siegburg to Alijo | 960.52 mi (1,545.81 km) |
| Siegburg to Aljustrel | 1,165.33 mi (1,875.42 km) |
| Siegburg to Almada | 1,155.23 mi (1,859.16 km) |
| Siegburg to Almargem | 1,149.98 mi (1,850.71 km) |
| Siegburg to Almeirim | 1,109.01 mi (1,784.78 km) |
| Siegburg to Amadora | 1,154.86 mi (1,858.57 km) |
| Siegburg to Amarante | 981.67 mi (1,579.84 km) |
| Siegburg to Amares | 973.58 mi (1,566.82 km) |
| Siegburg to Amora | 1,156.84 mi (1,861.75 km) |
| Siegburg to Anadia | 1,037.32 mi (1,669.41 km) |
| Siegburg to Angra do Heroismo | 1,863.78 mi (2,999.46 km) |
| Siegburg to Ansiao | 1,064.46 mi (1,713.09 km) |
| Siegburg to Anta | 1,014.55 mi (1,632.77 km) |
| Siegburg to Arcos de Valdevez | 965.29 mi (1,553.48 km) |
