| West Linn to Orbetello | 5,738.21 mi (9,234.75 km) |
| West Linn to Oria | 6,015.29 mi (9,680.68 km) |
| West Linn to Oristano | 5,816.65 mi (9,360.99 km) |
| West Linn to Orta Nova | 5,918.24 mi (9,524.49 km) |
| West Linn to Orte | 5,767.18 mi (9,281.38 km) |
| West Linn to Ortona | 5,824.22 mi (9,373.18 km) |
| West Linn to Orvieto | 5,744.73 mi (9,245.24 km) |
| West Linn to Orzinuovi | 5,530.25 mi (8,900.08 km) |
| West Linn to Osimo | 5,733.25 mi (9,226.77 km) |
| West Linn to Ospitaletto | 5,524.67 mi (8,891.10 km) |
| West Linn to Ostuni | 5,999.72 mi (9,655.61 km) |
| West Linn to Ottaviano | 5,917.05 mi (9,522.57 km) |
| West Linn to Ovada | 5,541.46 mi (8,918.12 km) |
| West Linn to Ozieri | 5,788.34 mi (9,315.44 km) |
| West Linn to Paceco | 6,039.81 mi (9,720.14 km) |
