| Aljustrel to Oerlinghausen | 1,266.53 mi (2,038.28 km) |
| Aljustrel to Oestrich-Winkel | 1,154.29 mi (1,857.64 km) |
| Aljustrel to Offenburg | 1,086.40 mi (1,748.40 km) |
| Aljustrel to Oftersheim | 1,147.46 mi (1,846.67 km) |
| Aljustrel to Ohrdruf | 1,284.10 mi (2,066.56 km) |
| Aljustrel to Ohringen | 1,173.83 mi (1,889.10 km) |
| Aljustrel to Olbernhau | 1,371.92 mi (2,207.89 km) |
| Aljustrel to Olching | 1,207.68 mi (1,943.58 km) |
| Aljustrel to Oldenburg | 1,310.75 mi (2,109.45 km) |
| Aljustrel to Oldenburg in Holstein | 1,444.27 mi (2,324.33 km) |
| Aljustrel to Olfen | 1,215.34 mi (1,955.91 km) |
| Aljustrel to Olpe | 1,195.45 mi (1,923.90 km) |
| Aljustrel to Olsberg | 1,231.76 mi (1,982.32 km) |
| Aljustrel to Oranienburg | 1,449.36 mi (2,332.52 km) |
| Aljustrel to Ortenberg | 1,205.95 mi (1,940.79 km) |
