| Giessen to Alfena | 1,044.50 mi (1,680.96 km) |
| Giessen to Alijo | 1,003.82 mi (1,615.49 km) |
| Giessen to Aljustrel | 1,202.78 mi (1,935.68 km) |
| Giessen to Almada | 1,196.07 mi (1,924.89 km) |
| Giessen to Almargem | 1,191.36 mi (1,917.31 km) |
| Giessen to Almeirim | 1,149.88 mi (1,850.55 km) |
| Giessen to Amadora | 1,195.95 mi (1,924.70 km) |
| Giessen to Amarante | 1,026.05 mi (1,651.27 km) |
| Giessen to Amares | 1,019.26 mi (1,640.34 km) |
| Giessen to Amora | 1,197.50 mi (1,927.20 km) |
| Giessen to Anadia | 1,080.48 mi (1,738.86 km) |
| Giessen to Angra do Heroismo | 1,923.08 mi (3,094.90 km) |
| Giessen to Ansiao | 1,106.49 mi (1,780.72 km) |
| Giessen to Anta | 1,059.34 mi (1,704.84 km) |
| Giessen to Arcos de Valdevez | 1,011.66 mi (1,628.11 km) |
