| Didymoteicho to Opwijk | 1,250.32 mi (2,012.19 km) |
| Didymoteicho to Ostend | 1,307.81 mi (2,104.72 km) |
| Didymoteicho to Oud-Heverlee | 1,227.32 mi (1,975.19 km) |
| Didymoteicho to Oud-Turnhout | 1,228.80 mi (1,977.57 km) |
| Didymoteicho to Oudenaarde | 1,270.62 mi (2,044.87 km) |
| Didymoteicho to Oudenburg | 1,303.47 mi (2,097.73 km) |
| Didymoteicho to Oupeye | 1,184.90 mi (1,906.91 km) |
| Didymoteicho to Overijse | 1,231.28 mi (1,981.55 km) |
| Didymoteicho to Overpelt | 1,208.93 mi (1,945.59 km) |
| Didymoteicho to Paal | 1,213.16 mi (1,952.40 km) |
| Didymoteicho to Peer | 1,204.95 mi (1,939.19 km) |
| Didymoteicho to Pepinster | 1,173.88 mi (1,889.17 km) |
| Didymoteicho to Peruwelz | 1,262.78 mi (2,032.25 km) |
| Didymoteicho to Perwez | 1,215.59 mi (1,956.31 km) |
| Didymoteicho to Philippeville | 1,215.11 mi (1,955.54 km) |
