| Bozeman to Orbetello | 5,390.70 mi (8,675.50 km) |
| Bozeman to Oria | 5,691.92 mi (9,160.26 km) |
| Bozeman to Oristano | 5,445.86 mi (8,764.27 km) |
| Bozeman to Orta Nova | 5,588.26 mi (8,993.44 km) |
| Bozeman to Orte | 5,425.41 mi (8,731.35 km) |
| Bozeman to Ortona | 5,491.88 mi (8,838.32 km) |
| Bozeman to Orvieto | 5,402.73 mi (8,694.86 km) |
| Bozeman to Orzinuovi | 5,189.94 mi (8,352.41 km) |
| Bozeman to Osimo | 5,401.22 mi (8,692.42 km) |
| Bozeman to Ospitaletto | 5,185.72 mi (8,345.61 km) |
| Bozeman to Ostuni | 5,677.02 mi (9,136.28 km) |
| Bozeman to Ottaviano | 5,578.81 mi (8,978.22 km) |
| Bozeman to Ovada | 5,191.82 mi (8,355.43 km) |
| Bozeman to Ozieri | 5,422.39 mi (8,726.50 km) |
| Bozeman to Paceco | 5,680.07 mi (9,141.20 km) |
