| Harran to Opwijk | 1,962.88 mi (3,158.95 km) |
| Harran to Ostend | 2,020.52 mi (3,251.71 km) |
| Harran to Oud-Heverlee | 1,940.08 mi (3,122.25 km) |
| Harran to Oud-Turnhout | 1,936.72 mi (3,116.85 km) |
| Harran to Oudenaarde | 1,985.16 mi (3,194.81 km) |
| Harran to Oudenburg | 2,016.38 mi (3,245.05 km) |
| Harran to Oupeye | 1,896.74 mi (3,052.51 km) |
| Harran to Overijse | 1,944.70 mi (3,129.69 km) |
| Harran to Overpelt | 1,916.77 mi (3,084.74 km) |
| Harran to Paal | 1,923.12 mi (3,094.97 km) |
| Harran to Peer | 1,913.46 mi (3,079.42 km) |
| Harran to Pepinster | 1,886.57 mi (3,036.14 km) |
| Harran to Peruwelz | 1,979.91 mi (3,186.36 km) |
| Harran to Perwez | 1,929.79 mi (3,105.70 km) |
| Harran to Philippeville | 1,933.11 mi (3,111.03 km) |
