| Orestiada to Opwijk | 1,245.06 mi (2,003.73 km) |
| Orestiada to Ostend | 1,302.59 mi (2,096.31 km) |
| Orestiada to Oud-Heverlee | 1,222.07 mi (1,966.73 km) |
| Orestiada to Oud-Turnhout | 1,223.28 mi (1,968.68 km) |
| Orestiada to Oudenaarde | 1,265.49 mi (2,036.61 km) |
| Orestiada to Oudenburg | 1,298.26 mi (2,089.34 km) |
| Orestiada to Oupeye | 1,179.57 mi (1,898.34 km) |
| Orestiada to Overijse | 1,226.06 mi (1,973.16 km) |
| Orestiada to Overpelt | 1,203.39 mi (1,936.67 km) |
| Orestiada to Paal | 1,207.74 mi (1,943.67 km) |
| Orestiada to Peer | 1,199.45 mi (1,930.33 km) |
| Orestiada to Pepinster | 1,168.59 mi (1,880.67 km) |
| Orestiada to Peruwelz | 1,257.81 mi (2,024.25 km) |
| Orestiada to Perwez | 1,210.42 mi (1,947.99 km) |
| Orestiada to Philippeville | 1,210.18 mi (1,947.60 km) |
