| Osterburg to Alfena | 1,237.47 mi (1,991.52 km) |
| Osterburg to Alijo | 1,198.69 mi (1,929.11 km) |
| Osterburg to Aljustrel | 1,402.02 mi (2,256.33 km) |
| Osterburg to Almada | 1,393.08 mi (2,241.95 km) |
| Osterburg to Almargem | 1,387.94 mi (2,233.68 km) |
| Osterburg to Almeirim | 1,346.86 mi (2,167.56 km) |
| Osterburg to Amadora | 1,392.77 mi (2,241.45 km) |
| Osterburg to Amarante | 1,219.84 mi (1,963.14 km) |
| Osterburg to Amares | 1,211.62 mi (1,949.91 km) |
| Osterburg to Amora | 1,394.65 mi (2,244.47 km) |
| Osterburg to Anadia | 1,275.49 mi (2,052.70 km) |
| Osterburg to Angra do Heroismo | 2,084.14 mi (3,354.09 km) |
| Osterburg to Ansiao | 1,302.52 mi (2,096.20 km) |
| Osterburg to Anta | 1,252.70 mi (2,016.02 km) |
| Osterburg to Arcos de Valdevez | 1,203.19 mi (1,936.35 km) |
