| Iracoubo to Oria | 4,969.42 mi (7,997.51 km) |
| Iracoubo to Oristano | 4,493.90 mi (7,232.23 km) |
| Iracoubo to Orta Nova | 4,879.59 mi (7,852.94 km) |
| Iracoubo to Orte | 4,727.47 mi (7,608.13 km) |
| Iracoubo to Ortona | 4,826.33 mi (7,767.23 km) |
| Iracoubo to Orvieto | 4,717.82 mi (7,592.59 km) |
| Iracoubo to Orzinuovi | 4,659.66 mi (7,499.00 km) |
| Iracoubo to Osimo | 4,797.07 mi (7,720.14 km) |
| Iracoubo to Ospitaletto | 4,669.12 mi (7,514.22 km) |
| Iracoubo to Ostuni | 4,969.20 mi (7,997.16 km) |
| Iracoubo to Ottaviano | 4,810.40 mi (7,741.58 km) |
| Iracoubo to Ovada | 4,584.61 mi (7,378.21 km) |
| Iracoubo to Ozieri | 4,526.73 mi (7,285.07 km) |
| Iracoubo to Paceco | 4,671.98 mi (7,518.83 km) |
| Iracoubo to Pachino | 4,794.94 mi (7,716.70 km) |
