| Laguna de Duero to Opwijk | 774.00 mi (1,245.63 km) |
| Laguna de Duero to Ostend | 758.14 mi (1,220.11 km) |
| Laguna de Duero to Oud-Heverlee | 779.53 mi (1,254.53 km) |
| Laguna de Duero to Oud-Turnhout | 814.26 mi (1,310.42 km) |
| Laguna de Duero to Oudenaarde | 752.60 mi (1,211.20 km) |
| Laguna de Duero to Oudenburg | 757.47 mi (1,219.03 km) |
| Laguna de Duero to Oupeye | 800.55 mi (1,288.36 km) |
| Laguna de Duero to Overijse | 773.20 mi (1,244.35 km) |
| Laguna de Duero to Overpelt | 820.65 mi (1,320.71 km) |
| Laguna de Duero to Paal | 804.46 mi (1,294.66 km) |
| Laguna de Duero to Peer | 817.23 mi (1,315.21 km) |
| Laguna de Duero to Pepinster | 798.48 mi (1,285.03 km) |
| Laguna de Duero to Peruwelz | 733.41 mi (1,180.31 km) |
| Laguna de Duero to Perwez | 772.41 mi (1,243.08 km) |
| Laguna de Duero to Philippeville | 742.46 mi (1,194.87 km) |
