| Denizciler to Orbetello | 1,385.17 mi (2,229.21 km) |
| Denizciler to Oria | 1,036.27 mi (1,667.71 km) |
| Denizciler to Oristano | 1,509.00 mi (2,428.51 km) |
| Denizciler to Orta Nova | 1,144.58 mi (1,842.02 km) |
| Denizciler to Orte | 1,326.30 mi (2,134.48 km) |
| Denizciler to Ortona | 1,223.90 mi (1,969.68 km) |
| Denizciler to Orvieto | 1,343.18 mi (2,161.64 km) |
| Denizciler to Orzinuovi | 1,488.71 mi (2,395.84 km) |
| Denizciler to Osimo | 1,286.32 mi (2,070.13 km) |
| Denizciler to Ospitaletto | 1,484.92 mi (2,389.75 km) |
| Denizciler to Ostuni | 1,041.45 mi (1,676.06 km) |
| Denizciler to Ottaviano | 1,203.38 mi (1,936.65 km) |
| Denizciler to Ovada | 1,538.08 mi (2,475.30 km) |
| Denizciler to Ozieri | 1,487.86 mi (2,394.49 km) |
| Denizciler to Paceco | 1,300.23 mi (2,092.52 km) |
