| Heckmondwike to Orbetello | 976.57 mi (1,571.64 km) |
| Heckmondwike to Oria | 1,279.22 mi (2,058.70 km) |
| Heckmondwike to Oristano | 1,067.50 mi (1,717.98 km) |
| Heckmondwike to Orta Nova | 1,172.45 mi (1,886.88 km) |
| Heckmondwike to Orte | 1,008.62 mi (1,623.21 km) |
| Heckmondwike to Ortona | 1,075.50 mi (1,730.85 km) |
| Heckmondwike to Orvieto | 985.97 mi (1,586.77 km) |
| Heckmondwike to Orzinuovi | 772.68 mi (1,243.51 km) |
| Heckmondwike to Osimo | 985.29 mi (1,585.68 km) |
| Heckmondwike to Ospitaletto | 768.46 mi (1,236.71 km) |
| Heckmondwike to Ostuni | 1,264.93 mi (2,035.71 km) |
| Heckmondwike to Ottaviano | 1,161.57 mi (1,869.36 km) |
| Heckmondwike to Ovada | 779.21 mi (1,254.01 km) |
| Heckmondwike to Ozieri | 1,033.62 mi (1,663.44 km) |
| Heckmondwike to Paceco | 1,278.77 mi (2,057.98 km) |
