| Bluffton to Orbetello | 4,860.33 mi (7,821.95 km) |
| Bluffton to Oria | 5,216.50 mi (8,395.15 km) |
| Bluffton to Oristano | 4,813.91 mi (7,747.24 km) |
| Bluffton to Orta Nova | 5,100.90 mi (8,209.11 km) |
| Bluffton to Orte | 4,913.25 mi (7,907.12 km) |
| Bluffton to Ortona | 5,008.00 mi (8,059.60 km) |
| Bluffton to Orvieto | 4,892.72 mi (7,874.07 km) |
| Bluffton to Orzinuovi | 4,715.45 mi (7,588.79 km) |
| Bluffton to Osimo | 4,930.68 mi (7,935.17 km) |
| Bluffton to Ospitaletto | 4,717.20 mi (7,591.60 km) |
| Bluffton to Ostuni | 5,206.13 mi (8,378.46 km) |
| Bluffton to Ottaviano | 5,060.47 mi (8,144.04 km) |
| Bluffton to Ovada | 4,679.59 mi (7,531.08 km) |
| Bluffton to Ozieri | 4,813.27 mi (7,746.21 km) |
| Bluffton to Paceco | 5,063.65 mi (8,149.16 km) |
