| Vashon to Orbetello | 5,614.80 mi (9,036.15 km) |
| Vashon to Oria | 5,888.06 mi (9,475.92 km) |
| Vashon to Oristano | 5,697.06 mi (9,168.53 km) |
| Vashon to Orta Nova | 5,792.03 mi (9,321.37 km) |
| Vashon to Orte | 5,642.86 mi (9,081.30 km) |
| Vashon to Ortona | 5,698.44 mi (9,170.76 km) |
| Vashon to Orvieto | 5,620.46 mi (9,045.26 km) |
| Vashon to Orzinuovi | 5,405.97 mi (8,700.07 km) |
| Vashon to Osimo | 5,607.52 mi (9,024.43 km) |
| Vashon to Ospitaletto | 5,400.20 mi (8,690.78 km) |
| Vashon to Ostuni | 5,872.41 mi (9,450.73 km) |
| Vashon to Ottaviano | 5,792.03 mi (9,321.37 km) |
| Vashon to Ovada | 5,418.62 mi (8,720.43 km) |
| Vashon to Ozieri | 5,667.94 mi (9,121.66 km) |
| Vashon to Paceco | 5,918.04 mi (9,524.17 km) |
