| Del Rio to Nuth | 5,331.17 mi (8,579.68 km) |
| Del Rio to Oegstgeest | 5,234.30 mi (8,423.79 km) |
| Del Rio to Oirschot | 5,288.81 mi (8,511.52 km) |
| Del Rio to Oisterwijk | 5,282.18 mi (8,500.85 km) |
| Del Rio to Oldebroek | 5,277.21 mi (8,492.85 km) |
| Del Rio to Oldenzaal | 5,319.25 mi (8,560.50 km) |
| Del Rio to Ommen | 5,293.47 mi (8,519.01 km) |
| Del Rio to Oosterend | 5,263.57 mi (8,470.91 km) |
| Del Rio to Oosterhout | 5,267.39 mi (8,477.05 km) |
| Del Rio to Oosterwolde | 5,272.07 mi (8,484.58 km) |
| Del Rio to Oostzaan | 5,240.90 mi (8,434.41 km) |
| Del Rio to Opmeer | 5,234.07 mi (8,423.43 km) |
| Del Rio to Oss | 5,287.40 mi (8,509.25 km) |
| Del Rio to Oud-Beijerland | 5,244.46 mi (8,440.15 km) |
| Del Rio to Oudenbosch | 5,256.91 mi (8,460.19 km) |
