| Horizon West to Nuth | 4,615.65 mi (7,428.17 km) |
| Horizon West to Oegstgeest | 4,532.62 mi (7,294.54 km) |
| Horizon West to Oirschot | 4,579.84 mi (7,370.53 km) |
| Horizon West to Oisterwijk | 4,574.09 mi (7,361.28 km) |
| Horizon West to Oldebroek | 4,585.71 mi (7,379.99 km) |
| Horizon West to Oldenzaal | 4,630.08 mi (7,451.40 km) |
| Horizon West to Ommen | 4,605.22 mi (7,411.38 km) |
| Horizon West to Oosterend | 4,581.57 mi (7,373.32 km) |
| Horizon West to Oosterhout | 4,558.80 mi (7,336.68 km) |
| Horizon West to Oosterwolde | 4,590.80 mi (7,388.18 km) |
| Horizon West to Oostzaan | 4,544.90 mi (7,314.30 km) |
| Horizon West to Opmeer | 4,542.60 mi (7,310.60 km) |
| Horizon West to Oss | 4,583.52 mi (7,376.46 km) |
| Horizon West to Oud-Beijerland | 4,536.71 mi (7,301.13 km) |
| Horizon West to Oudenbosch | 4,546.09 mi (7,316.23 km) |
