| Bon Air to Orbetello | 4,487.66 mi (7,222.20 km) |
| Bon Air to Oria | 4,841.60 mi (7,791.80 km) |
| Bon Air to Oristano | 4,452.53 mi (7,165.66 km) |
| Bon Air to Orta Nova | 4,726.11 mi (7,605.93 km) |
| Bon Air to Orte | 4,539.18 mi (7,305.10 km) |
| Bon Air to Ortona | 4,631.93 mi (7,454.38 km) |
| Bon Air to Orvieto | 4,518.21 mi (7,271.35 km) |
| Bon Air to Orzinuovi | 4,335.55 mi (6,977.40 km) |
| Bon Air to Osimo | 4,552.51 mi (7,326.55 km) |
| Bon Air to Ospitaletto | 4,336.73 mi (6,979.29 km) |
| Bon Air to Ostuni | 4,830.67 mi (7,774.21 km) |
| Bon Air to Ottaviano | 4,688.55 mi (7,545.49 km) |
| Bon Air to Ovada | 4,303.13 mi (6,925.22 km) |
| Bon Air to Ozieri | 4,449.09 mi (7,160.13 km) |
| Bon Air to Paceco | 4,703.12 mi (7,568.95 km) |
