| Odessa to Orbetello | 5,798.23 mi (9,331.34 km) |
| Odessa to Oria | 6,137.77 mi (9,877.79 km) |
| Odessa to Oristano | 5,797.75 mi (9,330.58 km) |
| Odessa to Orta Nova | 6,024.80 mi (9,695.98 km) |
| Odessa to Orte | 5,843.92 mi (9,404.87 km) |
| Odessa to Ortona | 5,927.67 mi (9,539.66 km) |
| Odessa to Orvieto | 5,821.78 mi (9,369.26 km) |
| Odessa to Orzinuovi | 5,622.27 mi (9,048.16 km) |
| Odessa to Osimo | 5,841.71 mi (9,401.33 km) |
| Odessa to Ospitaletto | 5,621.14 mi (9,046.35 km) |
| Odessa to Ostuni | 6,124.93 mi (9,857.12 km) |
| Odessa to Ottaviano | 5,998.11 mi (9,653.02 km) |
| Odessa to Ovada | 5,603.70 mi (9,018.29 km) |
| Odessa to Ozieri | 5,786.68 mi (9,312.77 km) |
| Odessa to Paceco | 6,046.95 mi (9,731.63 km) |
