| Delano to Orbetello | 6,195.81 mi (9,971.19 km) |
| Delano to Oria | 6,499.30 mi (10,459.61 km) |
| Delano to Oristano | 6,246.13 mi (10,052.18 km) |
| Delano to Orta Nova | 6,395.23 mi (10,292.13 km) |
| Delano to Orte | 6,231.27 mi (10,028.27 km) |
| Delano to Ortona | 6,298.70 mi (10,136.78 km) |
| Delano to Orvieto | 6,208.59 mi (9,991.76 km) |
| Delano to Orzinuovi | 5,996.19 mi (9,649.94 km) |
| Delano to Osimo | 6,208.13 mi (9,991.02 km) |
| Delano to Ospitaletto | 5,992.12 mi (9,643.38 km) |
| Delano to Ostuni | 6,484.44 mi (10,435.70 km) |
| Delano to Ottaviano | 6,384.96 mi (10,275.61 km) |
| Delano to Ovada | 5,996.83 mi (9,650.97 km) |
| Delano to Ozieri | 6,223.91 mi (10,016.41 km) |
| Delano to Paceco | 6,482.57 mi (10,432.69 km) |
