| Blackburn to Opwijk | 340.42 mi (547.85 km) |
| Blackburn to Ostend | 286.25 mi (460.68 km) |
| Blackburn to Oud-Heverlee | 362.82 mi (583.90 km) |
| Blackburn to Oud-Turnhout | 355.66 mi (572.38 km) |
| Blackburn to Oudenaarde | 325.59 mi (523.99 km) |
| Blackburn to Oudenburg | 290.81 mi (468.02 km) |
| Blackburn to Oupeye | 402.57 mi (647.87 km) |
| Blackburn to Overijse | 360.24 mi (579.74 km) |
| Blackburn to Overpelt | 375.28 mi (603.95 km) |
| Blackburn to Paal | 372.80 mi (599.97 km) |
| Blackburn to Peer | 379.65 mi (610.98 km) |
| Blackburn to Pepinster | 414.40 mi (666.92 km) |
| Blackburn to Peruwelz | 340.41 mi (547.83 km) |
| Blackburn to Perwez | 376.71 mi (606.26 km) |
| Blackburn to Philippeville | 386.57 mi (622.13 km) |
