| Grenchen to Alenquer | 997.58 mi (1,605.44 km) |
| Grenchen to Alfena | 886.98 mi (1,427.46 km) |
| Grenchen to Alijo | 840.05 mi (1,351.93 km) |
| Grenchen to Aljustrel | 1,015.59 mi (1,634.43 km) |
| Grenchen to Almada | 1,019.85 mi (1,641.29 km) |
| Grenchen to Almargem | 1,017.05 mi (1,636.78 km) |
| Grenchen to Almeirim | 974.46 mi (1,568.24 km) |
| Grenchen to Amadora | 1,020.56 mi (1,642.43 km) |
| Grenchen to Amarante | 865.96 mi (1,393.63 km) |
| Grenchen to Amares | 864.58 mi (1,391.40 km) |
| Grenchen to Amora | 1,020.66 mi (1,642.59 km) |
| Grenchen to Anadia | 914.48 mi (1,471.72 km) |
| Grenchen to Angra do Heroismo | 1,830.33 mi (2,945.63 km) |
| Grenchen to Ansiao | 935.87 mi (1,506.14 km) |
| Grenchen to Anta | 900.08 mi (1,448.54 km) |
