| Nittedal to Orbetello | 1,218.46 mi (1,960.91 km) |
| Nittedal to Oria | 1,383.21 mi (2,226.06 km) |
| Nittedal to Oristano | 1,396.90 mi (2,248.10 km) |
| Nittedal to Orta Nova | 1,311.32 mi (2,110.37 km) |
| Nittedal to Orte | 1,218.61 mi (1,961.16 km) |
| Nittedal to Ortona | 1,233.60 mi (1,985.29 km) |
| Nittedal to Orvieto | 1,200.24 mi (1,931.59 km) |
| Nittedal to Orzinuovi | 1,014.55 mi (1,632.76 km) |
| Nittedal to Osimo | 1,151.44 mi (1,853.07 km) |
| Nittedal to Ospitaletto | 1,003.62 mi (1,615.17 km) |
| Nittedal to Ostuni | 1,366.88 mi (2,199.78 km) |
| Nittedal to Ottaviano | 1,337.14 mi (2,151.92 km) |
| Nittedal to Ovada | 1,070.36 mi (1,722.57 km) |
| Nittedal to Ozieri | 1,348.89 mi (2,170.83 km) |
| Nittedal to Paceco | 1,528.03 mi (2,459.13 km) |
