| Bidston to Orbetello | 1,002.02 mi (1,612.60 km) |
| Bidston to Oria | 1,313.54 mi (2,113.94 km) |
| Bidston to Oristano | 1,081.24 mi (1,740.09 km) |
| Bidston to Orta Nova | 1,205.00 mi (1,939.26 km) |
| Bidston to Orte | 1,036.83 mi (1,668.62 km) |
| Bidston to Ortona | 1,107.65 mi (1,782.59 km) |
| Bidston to Orvieto | 1,014.15 mi (1,632.11 km) |
| Bidston to Orzinuovi | 802.66 mi (1,291.76 km) |
| Bidston to Osimo | 1,018.17 mi (1,638.58 km) |
| Bidston to Ospitaletto | 799.26 mi (1,286.29 km) |
| Bidston to Ostuni | 1,299.59 mi (2,091.48 km) |
| Bidston to Ottaviano | 1,190.86 mi (1,916.50 km) |
| Bidston to Ovada | 803.42 mi (1,292.98 km) |
| Bidston to Ozieri | 1,049.64 mi (1,689.23 km) |
| Bidston to Paceco | 1,299.11 mi (2,090.72 km) |
