| Vista to Orbetello | 6,276.41 mi (10,100.90 km) |
| Vista to Oria | 6,588.88 mi (10,603.78 km) |
| Vista to Oristano | 6,315.85 mi (10,164.37 km) |
| Vista to Orta Nova | 6,482.48 mi (10,432.54 km) |
| Vista to Orte | 6,314.21 mi (10,161.73 km) |
| Vista to Ortona | 6,385.38 mi (10,276.27 km) |
| Vista to Orvieto | 6,291.54 mi (10,125.25 km) |
| Vista to Orzinuovi | 6,080.86 mi (9,786.21 km) |
| Vista to Osimo | 6,295.35 mi (10,131.39 km) |
| Vista to Ospitaletto | 6,077.39 mi (9,780.61 km) |
| Vista to Ostuni | 6,574.37 mi (10,580.43 km) |
| Vista to Ottaviano | 6,468.71 mi (10,410.39 km) |
| Vista to Ovada | 6,077.46 mi (9,780.72 km) |
| Vista to Ozieri | 6,296.00 mi (10,132.44 km) |
| Vista to Paceco | 6,556.20 mi (10,551.18 km) |
