| Big Spring to Opwijk | 5,133.80 mi (8,262.05 km) |
| Big Spring to Ostend | 5,077.75 mi (8,171.85 km) |
| Big Spring to Oud-Heverlee | 5,156.52 mi (8,298.62 km) |
| Big Spring to Oud-Turnhout | 5,150.09 mi (8,288.26 km) |
| Big Spring to Oudenaarde | 5,116.54 mi (8,234.27 km) |
| Big Spring to Oudenburg | 5,082.26 mi (8,179.10 km) |
| Big Spring to Oupeye | 5,197.03 mi (8,363.81 km) |
| Big Spring to Overijse | 5,153.47 mi (8,293.71 km) |
| Big Spring to Overpelt | 5,169.57 mi (8,319.62 km) |
| Big Spring to Paal | 5,167.37 mi (8,316.08 km) |
| Big Spring to Peer | 5,174.07 mi (8,326.87 km) |
| Big Spring to Pepinster | 5,208.76 mi (8,382.69 km) |
| Big Spring to Peruwelz | 5,128.08 mi (8,252.85 km) |
| Big Spring to Perwez | 5,169.78 mi (8,319.96 km) |
| Big Spring to Philippeville | 5,175.79 mi (8,329.63 km) |
