| Sao Felix da Marinha to Orbetello | 1,024.93 mi (1,649.47 km) |
| Sao Felix da Marinha to Oria | 1,369.27 mi (2,203.63 km) |
| Sao Felix da Marinha to Oristano | 906.71 mi (1,459.21 km) |
| Sao Felix da Marinha to Orta Nova | 1,261.41 mi (2,030.04 km) |
| Sao Felix da Marinha to Orte | 1,084.70 mi (1,745.65 km) |
| Sao Felix da Marinha to Ortona | 1,187.68 mi (1,911.39 km) |
| Sao Felix da Marinha to Orvieto | 1,070.25 mi (1,722.41 km) |
| Sao Felix da Marinha to Orzinuovi | 979.23 mi (1,575.92 km) |
| Sao Felix da Marinha to Osimo | 1,139.59 mi (1,834.00 km) |
| Sao Felix da Marinha to Ospitaletto | 988.03 mi (1,590.08 km) |
| Sao Felix da Marinha to Ostuni | 1,363.93 mi (2,195.04 km) |
| Sao Felix da Marinha to Ottaviano | 1,202.17 mi (1,934.71 km) |
| Sao Felix da Marinha to Ovada | 907.76 mi (1,460.90 km) |
| Sao Felix da Marinha to Ozieri | 920.74 mi (1,481.78 km) |
| Sao Felix da Marinha to Paceco | 1,145.22 mi (1,843.05 km) |
