| Mogadouro to Octeville | 623.16 mi (1,002.88 km) |
| Mogadouro to Oignies | 783.73 mi (1,261.29 km) |
| Mogadouro to Oissel | 670.02 mi (1,078.29 km) |
| Mogadouro to Olivet | 618.39 mi (995.20 km) |
| Mogadouro to Ollioules | 654.03 mi (1,052.56 km) |
| Mogadouro to Olonne-sur-Mer | 435.39 mi (700.68 km) |
| Mogadouro to Oloron-Sainte-Marie | 337.74 mi (543.54 km) |
| Mogadouro to Onet Village | 515.66 mi (829.87 km) |
| Mogadouro to Onnaing | 797.01 mi (1,282.66 km) |
| Mogadouro to Orange | 615.59 mi (990.69 km) |
| Mogadouro to Orchies | 791.17 mi (1,273.26 km) |
| Mogadouro to Orleans | 620.51 mi (998.62 km) |
| Mogadouro to Orly | 677.25 mi (1,089.92 km) |
| Mogadouro to Ormesson-sur-Marne | 683.95 mi (1,100.72 km) |
| Mogadouro to Orsay | 668.47 mi (1,075.79 km) |
