| Zarasai to Orbetello | 1,137.88 mi (1,831.25 km) |
| Zarasai to Oria | 1,123.03 mi (1,807.34 km) |
| Zarasai to Oristano | 1,358.01 mi (2,185.51 km) |
| Zarasai to Orta Nova | 1,102.92 mi (1,774.98 km) |
| Zarasai to Orte | 1,106.58 mi (1,780.87 km) |
| Zarasai to Ortona | 1,065.82 mi (1,715.28 km) |
| Zarasai to Orvieto | 1,098.05 mi (1,767.14 km) |
| Zarasai to Orzinuovi | 1,006.42 mi (1,619.68 km) |
| Zarasai to Osimo | 1,017.80 mi (1,637.99 km) |
| Zarasai to Ospitaletto | 993.82 mi (1,599.40 km) |
| Zarasai to Ostuni | 1,108.47 mi (1,783.91 km) |
| Zarasai to Ottaviano | 1,158.40 mi (1,864.26 km) |
| Zarasai to Ovada | 1,086.81 mi (1,749.06 km) |
| Zarasai to Ozieri | 1,306.59 mi (2,102.75 km) |
| Zarasai to Paceco | 1,380.97 mi (2,222.46 km) |
