| Prescott to Orbetello | 6,035.11 mi (9,712.56 km) |
| Prescott to Oria | 6,354.75 mi (10,226.98 km) |
| Prescott to Oristano | 6,065.90 mi (9,762.12 km) |
| Prescott to Orta Nova | 6,246.48 mi (10,052.74 km) |
| Prescott to Orte | 6,074.80 mi (9,776.45 km) |
| Prescott to Ortona | 6,149.07 mi (9,895.97 km) |
| Prescott to Orvieto | 6,052.18 mi (9,740.05 km) |
| Prescott to Orzinuovi | 5,843.40 mi (9,404.05 km) |
| Prescott to Osimo | 6,059.70 mi (9,752.14 km) |
| Prescott to Ospitaletto | 5,840.45 mi (9,399.30 km) |
| Prescott to Ostuni | 6,340.58 mi (10,204.18 km) |
| Prescott to Ottaviano | 6,229.70 mi (10,025.74 km) |
| Prescott to Ovada | 5,836.56 mi (9,393.04 km) |
| Prescott to Ozieri | 6,047.89 mi (9,733.14 km) |
| Prescott to Paceco | 6,308.81 mi (10,153.05 km) |
