| Tonyrefail to Orbetello | 932.32 mi (1,500.42 km) |
| Tonyrefail to Oria | 1,260.00 mi (2,027.77 km) |
| Tonyrefail to Oristano | 990.76 mi (1,594.47 km) |
| Tonyrefail to Orta Nova | 1,148.20 mi (1,847.84 km) |
| Tonyrefail to Orte | 972.26 mi (1,564.70 km) |
| Tonyrefail to Ortona | 1,050.72 mi (1,690.97 km) |
| Tonyrefail to Orvieto | 949.70 mi (1,528.40 km) |
| Tonyrefail to Orzinuovi | 744.52 mi (1,198.19 km) |
| Tonyrefail to Osimo | 963.64 mi (1,550.82 km) |
| Tonyrefail to Ospitaletto | 742.96 mi (1,195.67 km) |
| Tonyrefail to Ostuni | 1,246.87 mi (2,006.65 km) |
| Tonyrefail to Ottaviano | 1,127.27 mi (1,814.17 km) |
| Tonyrefail to Ovada | 733.63 mi (1,180.67 km) |
| Tonyrefail to Ozieri | 962.94 mi (1,549.70 km) |
| Tonyrefail to Paceco | 1,218.12 mi (1,960.38 km) |
