| Santa Barbara to Orbetello | 6,286.86 mi (10,117.73 km) |
| Santa Barbara to Oria | 6,591.70 mi (10,608.31 km) |
| Santa Barbara to Oristano | 6,335.39 mi (10,195.83 km) |
| Santa Barbara to Orta Nova | 6,487.29 mi (10,440.29 km) |
| Santa Barbara to Orte | 6,322.69 mi (10,175.38 km) |
| Santa Barbara to Ortona | 6,390.67 mi (10,284.79 km) |
| Santa Barbara to Orvieto | 6,300.00 mi (10,138.87 km) |
| Santa Barbara to Orzinuovi | 6,087.82 mi (9,797.41 km) |
| Santa Barbara to Osimo | 6,300.16 mi (10,139.13 km) |
| Santa Barbara to Ospitaletto | 6,083.84 mi (9,790.99 km) |
| Santa Barbara to Ostuni | 6,576.89 mi (10,584.48 km) |
| Santa Barbara to Ottaviano | 6,476.52 mi (10,422.95 km) |
| Santa Barbara to Ovada | 6,087.85 mi (9,797.46 km) |
| Santa Barbara to Ozieri | 6,313.58 mi (10,160.72 km) |
| Santa Barbara to Paceco | 6,572.55 mi (10,577.49 km) |
