| Alhambra to Orbetello | 6,255.45 mi (10,067.18 km) |
| Alhambra to Oria | 6,564.44 mi (10,564.45 km) |
| Alhambra to Oristano | 6,299.20 mi (10,137.59 km) |
| Alhambra to Orta Nova | 6,458.94 mi (10,394.66 km) |
| Alhambra to Orte | 6,292.34 mi (10,126.54 km) |
| Alhambra to Ortona | 6,362.04 mi (10,238.72 km) |
| Alhambra to Orvieto | 6,269.66 mi (10,090.04 km) |
| Alhambra to Orzinuovi | 6,058.24 mi (9,749.79 km) |
| Alhambra to Osimo | 6,271.77 mi (10,093.44 km) |
| Alhambra to Ospitaletto | 6,054.52 mi (9,743.81 km) |
| Alhambra to Ostuni | 6,549.79 mi (10,540.87 km) |
| Alhambra to Ottaviano | 6,446.56 mi (10,374.74 km) |
| Alhambra to Ovada | 6,056.43 mi (9,746.89 km) |
| Alhambra to Ozieri | 6,278.42 mi (10,104.14 km) |
| Alhambra to Paceco | 6,538.09 mi (10,522.03 km) |
