| Grefrath to Alfena | 991.75 mi (1,596.06 km) |
| Grefrath to Alijo | 955.04 mi (1,536.99 km) |
| Grefrath to Aljustrel | 1,165.39 mi (1,875.51 km) |
| Grefrath to Almada | 1,151.86 mi (1,853.74 km) |
| Grefrath to Almargem | 1,146.06 mi (1,844.41 km) |
| Grefrath to Almeirim | 1,105.72 mi (1,779.48 km) |
| Grefrath to Amadora | 1,151.24 mi (1,852.75 km) |
| Grefrath to Amarante | 974.93 mi (1,569.01 km) |
| Grefrath to Amares | 965.41 mi (1,553.68 km) |
| Grefrath to Amora | 1,153.65 mi (1,856.62 km) |
| Grefrath to Anadia | 1,031.78 mi (1,660.49 km) |
| Grefrath to Angra do Heroismo | 1,836.57 mi (2,955.67 km) |
| Grefrath to Ansiao | 1,060.06 mi (1,706.00 km) |
| Grefrath to Anta | 1,007.29 mi (1,621.08 km) |
| Grefrath to Arcos de Valdevez | 956.36 mi (1,539.11 km) |
