| Santee to Orbetello | 6,286.73 mi (10,117.51 km) |
| Santee to Oria | 6,600.31 mi (10,622.17 km) |
| Santee to Oristano | 6,324.75 mi (10,178.71 km) |
| Santee to Orta Nova | 6,493.63 mi (10,450.48 km) |
| Santee to Orte | 6,324.83 mi (10,178.82 km) |
| Santee to Ortona | 6,396.47 mi (10,294.12 km) |
| Santee to Orvieto | 6,302.16 mi (10,142.35 km) |
| Santee to Orzinuovi | 6,091.75 mi (9,803.72 km) |
| Santee to Osimo | 6,306.53 mi (10,149.37 km) |
| Santee to Ospitaletto | 6,088.35 mi (9,798.25 km) |
| Santee to Ostuni | 6,585.85 mi (10,598.90 km) |
| Santee to Ottaviano | 6,479.41 mi (10,427.60 km) |
| Santee to Ovada | 6,087.82 mi (9,797.40 km) |
| Santee to Ozieri | 6,305.23 mi (10,147.28 km) |
| Santee to Paceco | 6,565.57 mi (10,566.26 km) |
