| Oak Lawn to Opwijk | 4,141.04 mi (6,664.37 km) |
| Oak Lawn to Ostend | 4,084.60 mi (6,573.53 km) |
| Oak Lawn to Oud-Heverlee | 4,163.87 mi (6,701.10 km) |
| Oak Lawn to Oud-Turnhout | 4,158.58 mi (6,692.59 km) |
| Oak Lawn to Oudenaarde | 4,123.18 mi (6,635.61 km) |
| Oak Lawn to Oudenburg | 4,089.09 mi (6,580.75 km) |
| Oak Lawn to Oupeye | 4,204.85 mi (6,767.06 km) |
| Oak Lawn to Overijse | 4,160.63 mi (6,695.89 km) |
| Oak Lawn to Overpelt | 4,178.21 mi (6,724.17 km) |
| Oak Lawn to Paal | 4,175.47 mi (6,719.76 km) |
| Oak Lawn to Peer | 4,182.57 mi (6,731.19 km) |
| Oak Lawn to Pepinster | 4,216.45 mi (6,785.73 km) |
| Oak Lawn to Peruwelz | 4,134.14 mi (6,653.26 km) |
| Oak Lawn to Perwez | 4,176.85 mi (6,722.00 km) |
| Oak Lawn to Philippeville | 4,181.96 mi (6,730.21 km) |
