| Nashua to Orbetello | 4,021.58 mi (6,472.10 km) |
| Nashua to Oria | 4,373.37 mi (7,038.26 km) |
| Nashua to Oristano | 3,995.45 mi (6,430.06 km) |
| Nashua to Orta Nova | 4,258.10 mi (6,852.75 km) |
| Nashua to Orte | 4,071.97 mi (6,553.20 km) |
| Nashua to Ortona | 4,163.14 mi (6,699.92 km) |
| Nashua to Orvieto | 4,050.70 mi (6,518.98 km) |
| Nashua to Orzinuovi | 3,864.40 mi (6,219.16 km) |
| Nashua to Osimo | 4,082.31 mi (6,569.85 km) |
| Nashua to Ospitaletto | 3,865.19 mi (6,220.42 km) |
| Nashua to Ostuni | 4,362.04 mi (7,020.03 km) |
| Nashua to Ottaviano | 4,222.72 mi (6,795.81 km) |
| Nashua to Ovada | 3,834.50 mi (6,171.03 km) |
| Nashua to Ozieri | 3,989.73 mi (6,420.85 km) |
| Nashua to Paceco | 4,246.18 mi (6,833.57 km) |
