| Palmdale to Orbetello | 6,225.53 mi (10,019.02 km) |
| Palmdale to Oria | 6,533.69 mi (10,514.95 km) |
| Palmdale to Oristano | 6,270.35 mi (10,091.15 km) |
| Palmdale to Orta Nova | 6,428.40 mi (10,345.51 km) |
| Palmdale to Orte | 6,262.19 mi (10,078.02 km) |
| Palmdale to Ortona | 6,331.55 mi (10,189.64 km) |
| Palmdale to Orvieto | 6,239.51 mi (10,041.52 km) |
| Palmdale to Orzinuovi | 6,027.92 mi (9,701.01 km) |
| Palmdale to Osimo | 6,241.23 mi (10,044.28 km) |
| Palmdale to Ospitaletto | 6,024.15 mi (9,694.94 km) |
| Palmdale to Ostuni | 6,519.01 mi (10,491.33 km) |
| Palmdale to Ottaviano | 6,416.34 mi (10,326.11 km) |
| Palmdale to Ovada | 6,026.50 mi (9,698.72 km) |
| Palmdale to Ozieri | 6,249.32 mi (10,057.31 km) |
| Palmdale to Paceco | 6,508.84 mi (10,474.97 km) |
