| Sao Mamede de Infesta to Orbetello | 1,021.43 mi (1,643.84 km) |
| Sao Mamede de Infesta to Oria | 1,366.70 mi (2,199.50 km) |
| Sao Mamede de Infesta to Oristano | 905.44 mi (1,457.17 km) |
| Sao Mamede de Infesta to Orta Nova | 1,258.48 mi (2,025.33 km) |
| Sao Mamede de Infesta to Orte | 1,081.16 mi (1,739.97 km) |
| Sao Mamede de Infesta to Ortona | 1,184.17 mi (1,905.74 km) |
| Sao Mamede de Infesta to Orvieto | 1,066.54 mi (1,716.43 km) |
| Sao Mamede de Infesta to Orzinuovi | 973.50 mi (1,566.70 km) |
| Sao Mamede de Infesta to Osimo | 1,135.35 mi (1,827.17 km) |
| Sao Mamede de Infesta to Ospitaletto | 982.21 mi (1,580.71 km) |
| Sao Mamede de Infesta to Ostuni | 1,361.23 mi (2,190.69 km) |
| Sao Mamede de Infesta to Ottaviano | 1,199.63 mi (1,930.62 km) |
| Sao Mamede de Infesta to Ovada | 902.47 mi (1,452.38 km) |
| Sao Mamede de Infesta to Ozieri | 918.84 mi (1,478.73 km) |
| Sao Mamede de Infesta to Paceco | 1,144.82 mi (1,842.40 km) |
