| Altamont to Nuth | 5,273.74 mi (8,487.27 km) |
| Altamont to Oegstgeest | 5,167.29 mi (8,315.94 km) |
| Altamont to Oirschot | 5,226.39 mi (8,411.06 km) |
| Altamont to Oisterwijk | 5,219.21 mi (8,399.50 km) |
| Altamont to Oldebroek | 5,189.87 mi (8,352.28 km) |
| Altamont to Oldenzaal | 5,223.46 mi (8,406.35 km) |
| Altamont to Ommen | 5,199.35 mi (8,367.54 km) |
| Altamont to Oosterend | 5,163.69 mi (8,310.16 km) |
| Altamont to Oosterhout | 5,206.92 mi (8,379.72 km) |
| Altamont to Oosterwolde | 5,170.09 mi (8,320.46 km) |
| Altamont to Oostzaan | 5,164.58 mi (8,311.59 km) |
| Altamont to Opmeer | 5,151.80 mi (8,291.02 km) |
| Altamont to Oss | 5,217.45 mi (8,396.68 km) |
| Altamont to Oud-Beijerland | 5,185.41 mi (8,345.11 km) |
| Altamont to Oudenbosch | 5,201.04 mi (8,370.27 km) |
