| Northport to Opwijk | 4,547.66 mi (7,318.75 km) |
| Northport to Ostend | 4,490.19 mi (7,226.27 km) |
| Northport to Oud-Heverlee | 4,570.65 mi (7,355.75 km) |
| Northport to Oud-Turnhout | 4,569.62 mi (7,354.09 km) |
| Northport to Oudenaarde | 4,527.55 mi (7,286.40 km) |
| Northport to Oudenburg | 4,494.55 mi (7,233.27 km) |
| Northport to Oupeye | 4,613.08 mi (7,424.04 km) |
| Northport to Overijse | 4,566.73 mi (7,349.44 km) |
| Northport to Overpelt | 4,589.54 mi (7,386.15 km) |
| Northport to Paal | 4,584.95 mi (7,378.76 km) |
| Northport to Peer | 4,593.39 mi (7,392.34 km) |
| Northport to Pepinster | 4,624.09 mi (7,441.75 km) |
| Northport to Peruwelz | 4,536.01 mi (7,300.00 km) |
| Northport to Perwez | 4,582.47 mi (7,374.78 km) |
| Northport to Philippeville | 4,583.83 mi (7,376.96 km) |
