| Prescott to Oerlinghausen | 5,481.87 mi (8,822.22 km) |
| Prescott to Oestrich-Winkel | 5,555.54 mi (8,940.78 km) |
| Prescott to Offenburg | 5,627.01 mi (9,055.80 km) |
| Prescott to Oftersheim | 5,604.60 mi (9,019.73 km) |
| Prescott to Ohrdruf | 5,600.47 mi (9,013.09 km) |
| Prescott to Ohringen | 5,642.19 mi (9,080.23 km) |
| Prescott to Olbernhau | 5,686.56 mi (9,151.63 km) |
| Prescott to Olching | 5,749.48 mi (9,252.90 km) |
| Prescott to Oldenburg | 5,411.74 mi (8,709.35 km) |
| Prescott to Oldenburg in Holstein | 5,433.45 mi (8,744.30 km) |
| Prescott to Olfen | 5,454.23 mi (8,777.73 km) |
| Prescott to Olpe | 5,501.60 mi (8,853.98 km) |
| Prescott to Olsberg | 5,505.91 mi (8,860.90 km) |
| Prescott to Oranienburg | 5,577.44 mi (8,976.02 km) |
| Prescott to Ortenberg | 5,571.79 mi (8,966.93 km) |
