| Oostakker to Ostend | 37.73 mi (60.72 km) |
| Oostakker to Oud-Heverlee | 43.28 mi (69.65 km) |
| Oostakker to Oud-Turnhout | 54.75 mi (88.11 km) |
| Oostakker to Oudenaarde | 18.73 mi (30.15 km) |
| Oostakker to Oudenburg | 33.73 mi (54.28 km) |
| Oostakker to Oupeye | 86.12 mi (138.59 km) |
| Oostakker to Overijse | 39.91 mi (64.23 km) |
| Oostakker to Overpelt | 71.95 mi (115.79 km) |
| Oostakker to Paal | 61.19 mi (98.48 km) |
| Oostakker to Peer | 73.20 mi (117.80 km) |
| Oostakker to Pepinster | 96.74 mi (155.70 km) |
| Oostakker to Peruwelz | 41.09 mi (66.13 km) |
| Oostakker to Perwez | 56.31 mi (90.63 km) |
| Oostakker to Philippeville | 71.02 mi (114.30 km) |
| Oostakker to Plombieres | 98.42 mi (158.39 km) |
