| Sierra Vista to Opwijk | 5,485.49 mi (8,828.05 km) |
| Sierra Vista to Ostend | 5,431.07 mi (8,740.47 km) |
| Sierra Vista to Oud-Heverlee | 5,507.76 mi (8,863.88 km) |
| Sierra Vista to Oud-Turnhout | 5,497.81 mi (8,847.86 km) |
| Sierra Vista to Oudenaarde | 5,470.33 mi (8,803.64 km) |
| Sierra Vista to Oudenburg | 5,435.63 mi (8,747.80 km) |
| Sierra Vista to Oupeye | 5,546.48 mi (8,926.19 km) |
| Sierra Vista to Overijse | 5,505.32 mi (8,859.96 km) |
| Sierra Vista to Overpelt | 5,516.76 mi (8,878.37 km) |
| Sierra Vista to Paal | 5,516.17 mi (8,877.42 km) |
| Sierra Vista to Peer | 5,521.64 mi (8,886.21 km) |
| Sierra Vista to Pepinster | 5,558.55 mi (8,945.62 km) |
| Sierra Vista to Peruwelz | 5,483.78 mi (8,825.29 km) |
| Sierra Vista to Perwez | 5,521.81 mi (8,886.50 km) |
| Sierra Vista to Philippeville | 5,530.84 mi (8,901.03 km) |
