| Sredets to Opwijk | 1,235.92 mi (1,989.02 km) |
| Sredets to Ostend | 1,293.60 mi (2,081.84 km) |
| Sredets to Oud-Heverlee | 1,212.97 mi (1,952.09 km) |
| Sredets to Oud-Turnhout | 1,212.16 mi (1,950.78 km) |
| Sredets to Oudenaarde | 1,257.26 mi (2,023.36 km) |
| Sredets to Oudenburg | 1,289.35 mi (2,075.00 km) |
| Sredets to Oupeye | 1,170.01 mi (1,882.94 km) |
| Sredets to Overijse | 1,217.27 mi (1,959.01 km) |
| Sredets to Overpelt | 1,192.20 mi (1,918.66 km) |
| Sredets to Paal | 1,197.43 mi (1,927.07 km) |
| Sredets to Peer | 1,188.52 mi (1,912.74 km) |
| Sredets to Pepinster | 1,159.38 mi (1,865.85 km) |
| Sredets to Peruwelz | 1,250.78 mi (2,012.93 km) |
| Sredets to Perwez | 1,201.95 mi (1,934.35 km) |
| Sredets to Philippeville | 1,203.51 mi (1,936.86 km) |
