| Portishead to Oerlinghausen | 489.79 mi (788.23 km) |
| Portishead to Oestrich-Winkel | 481.14 mi (774.32 km) |
| Portishead to Offenburg | 518.35 mi (834.20 km) |
| Portishead to Oftersheim | 519.76 mi (836.48 km) |
| Portishead to Ohrdruf | 585.75 mi (942.67 km) |
| Portishead to Ohringen | 562.51 mi (905.28 km) |
| Portishead to Olbernhau | 699.60 mi (1,125.89 km) |
| Portishead to Olching | 665.83 mi (1,071.55 km) |
| Portishead to Oldenburg | 477.09 mi (767.80 km) |
| Portishead to Oldenburg in Holstein | 600.04 mi (965.67 km) |
| Portishead to Olfen | 435.38 mi (700.67 km) |
| Portishead to Olpe | 458.97 mi (738.64 km) |
| Portishead to Olsberg | 484.20 mi (779.24 km) |
| Portishead to Oranienburg | 682.98 mi (1,099.15 km) |
| Portishead to Ortenberg | 520.03 mi (836.91 km) |
