| Pencoed to Orbetello | 932.34 mi (1,500.46 km) |
| Pencoed to Oria | 1,260.73 mi (2,028.95 km) |
| Pencoed to Oristano | 989.60 mi (1,592.60 km) |
| Pencoed to Orta Nova | 1,148.80 mi (1,848.82 km) |
| Pencoed to Orte | 972.53 mi (1,565.14 km) |
| Pencoed to Ortona | 1,051.34 mi (1,691.98 km) |
| Pencoed to Orvieto | 949.99 mi (1,528.86 km) |
| Pencoed to Orzinuovi | 745.21 mi (1,199.29 km) |
| Pencoed to Osimo | 964.40 mi (1,552.05 km) |
| Pencoed to Ospitaletto | 743.73 mi (1,196.92 km) |
| Pencoed to Ostuni | 1,247.65 mi (2,007.90 km) |
| Pencoed to Ottaviano | 1,127.55 mi (1,814.62 km) |
| Pencoed to Ovada | 733.73 mi (1,180.83 km) |
| Pencoed to Ozieri | 962.01 mi (1,548.21 km) |
| Pencoed to Paceco | 1,217.47 mi (1,959.33 km) |
