| Los Alcazares to Orbetello | 714.45 mi (1,149.79 km) |
| Los Alcazares to Oria | 1,006.91 mi (1,620.47 km) |
| Los Alcazares to Oristano | 529.41 mi (852.00 km) |
| Los Alcazares to Orta Nova | 914.99 mi (1,472.53 km) |
| Los Alcazares to Orte | 770.55 mi (1,240.08 km) |
| Los Alcazares to Ortona | 865.56 mi (1,392.99 km) |
| Los Alcazares to Orvieto | 764.02 mi (1,229.58 km) |
| Los Alcazares to Orzinuovi | 767.18 mi (1,234.65 km) |
| Los Alcazares to Osimo | 848.32 mi (1,365.25 km) |
| Los Alcazares to Ospitaletto | 779.26 mi (1,254.10 km) |
| Los Alcazares to Ostuni | 1,005.82 mi (1,618.71 km) |
| Los Alcazares to Ottaviano | 845.93 mi (1,361.40 km) |
| Los Alcazares to Ovada | 685.24 mi (1,102.79 km) |
| Los Alcazares to Ozieri | 562.76 mi (905.68 km) |
| Los Alcazares to Paceco | 730.48 mi (1,175.59 km) |
