| Berthoud to Orbetello | 5,471.44 mi (8,805.44 km) |
| Berthoud to Oria | 5,793.80 mi (9,324.22 km) |
| Berthoud to Oristano | 5,500.00 mi (8,851.39 km) |
| Berthoud to Orta Nova | 5,684.78 mi (9,148.76 km) |
| Berthoud to Orte | 5,511.81 mi (8,870.40 km) |
| Berthoud to Ortona | 5,587.29 mi (8,991.87 km) |
| Berthoud to Orvieto | 5,489.22 mi (8,834.05 km) |
| Berthoud to Orzinuovi | 5,281.30 mi (8,499.43 km) |
| Berthoud to Osimo | 5,498.25 mi (8,848.58 km) |
| Berthoud to Ospitaletto | 5,278.58 mi (8,495.05 km) |
| Berthoud to Ostuni | 5,779.80 mi (9,301.69 km) |
| Berthoud to Ottaviano | 5,666.79 mi (9,119.81 km) |
| Berthoud to Ovada | 5,273.12 mi (8,486.27 km) |
| Berthoud to Ozieri | 5,482.33 mi (8,822.96 km) |
| Berthoud to Paceco | 5,743.35 mi (9,243.03 km) |
