| Viersen to Alfena | 990.18 mi (1,593.54 km) |
| Viersen to Alijo | 953.23 mi (1,534.08 km) |
| Viersen to Aljustrel | 1,163.01 mi (1,871.68 km) |
| Viersen to Almada | 1,149.84 mi (1,850.49 km) |
| Viersen to Almargem | 1,144.10 mi (1,841.26 km) |
| Viersen to Almeirim | 1,103.69 mi (1,776.21 km) |
| Viersen to Amadora | 1,149.26 mi (1,849.55 km) |
| Viersen to Amarante | 973.27 mi (1,566.32 km) |
| Viersen to Amares | 963.91 mi (1,551.26 km) |
| Viersen to Amora | 1,151.62 mi (1,853.35 km) |
| Viersen to Anadia | 1,029.99 mi (1,657.61 km) |
| Viersen to Angra do Heroismo | 1,837.47 mi (2,957.12 km) |
| Viersen to Ansiao | 1,058.15 mi (1,702.92 km) |
| Viersen to Anta | 1,005.69 mi (1,618.50 km) |
| Viersen to Arcos de Valdevez | 954.94 mi (1,536.82 km) |
