| Adelanto to Orbetello | 6,204.53 mi (9,985.23 km) |
| Adelanto to Oria | 6,514.16 mi (10,483.53 km) |
| Adelanto to Oristano | 6,247.65 mi (10,054.63 km) |
| Adelanto to Orta Nova | 6,408.48 mi (10,313.46 km) |
| Adelanto to Orte | 6,241.57 mi (10,044.84 km) |
| Adelanto to Ortona | 6,311.54 mi (10,157.45 km) |
| Adelanto to Orvieto | 6,218.89 mi (10,008.34 km) |
| Adelanto to Orzinuovi | 6,007.60 mi (9,668.30 km) |
| Adelanto to Osimo | 6,221.31 mi (10,012.24 km) |
| Adelanto to Ospitaletto | 6,003.93 mi (9,662.39 km) |
| Adelanto to Ostuni | 6,499.54 mi (10,460.00 km) |
| Adelanto to Ottaviano | 6,395.85 mi (10,293.13 km) |
| Adelanto to Ovada | 6,005.52 mi (9,664.95 km) |
| Adelanto to Ozieri | 6,226.99 mi (10,021.38 km) |
| Adelanto to Paceco | 6,486.74 mi (10,439.40 km) |
