| Northallerton to Opwijk | 330.84 mi (532.44 km) |
| Northallerton to Ostend | 281.41 mi (452.88 km) |
| Northallerton to Oud-Heverlee | 352.05 mi (566.57 km) |
| Northallerton to Oud-Turnhout | 339.22 mi (545.93 km) |
| Northallerton to Oudenaarde | 320.18 mi (515.28 km) |
| Northallerton to Oudenburg | 285.88 mi (460.07 km) |
| Northallerton to Oupeye | 388.61 mi (625.40 km) |
| Northallerton to Overijse | 350.52 mi (564.11 km) |
| Northallerton to Overpelt | 358.01 mi (576.16 km) |
| Northallerton to Paal | 358.04 mi (576.21 km) |
| Northallerton to Peer | 362.96 mi (584.12 km) |
| Northallerton to Pepinster | 400.85 mi (645.10 km) |
| Northallerton to Peruwelz | 337.89 mi (543.78 km) |
| Northallerton to Perwez | 366.98 mi (590.59 km) |
| Northallerton to Philippeville | 381.36 mi (613.73 km) |
