| Portishead to Nuth | 376.14 mi (605.33 km) |
| Portishead to Oegstgeest | 312.28 mi (502.57 km) |
| Portishead to Oirschot | 346.67 mi (557.92 km) |
| Portishead to Oisterwijk | 342.13 mi (550.61 km) |
| Portishead to Oldebroek | 374.51 mi (602.72 km) |
| Portishead to Oldenzaal | 417.02 mi (671.13 km) |
| Portishead to Ommen | 396.65 mi (638.34 km) |
| Portishead to Oosterend | 387.71 mi (623.96 km) |
| Portishead to Oosterhout | 327.31 mi (526.75 km) |
| Portishead to Oosterwolde | 396.68 mi (638.39 km) |
| Portishead to Oostzaan | 331.92 mi (534.17 km) |
| Portishead to Opmeer | 337.83 mi (543.68 km) |
| Portishead to Oss | 355.47 mi (572.07 km) |
| Portishead to Oud-Beijerland | 307.79 mi (495.34 km) |
| Portishead to Oudenbosch | 313.11 mi (503.90 km) |
