| Cities | Distance |
|---|
| Otopeni to Orbetello | 757.72 mi (1,219.43 km) |
| Otopeni to Oria | 512.29 mi (824.45 km) |
| Otopeni to Oristano | 947.78 mi (1,525.30 km) |
| Otopeni to Orta Nova | 568.67 mi (915.18 km) |
| Otopeni to Orte | 699.90 mi (1,126.38 km) |
| Otopeni to Ortona | 604.19 mi (972.35 km) |
| Otopeni to Orvieto | 708.54 mi (1,140.29 km) |
| Otopeni to Orzinuovi | 789.58 mi (1,270.70 km) |
| Otopeni to Osimo | 629.09 mi (1,012.43 km) |
| Otopeni to Ospitaletto | 782.60 mi (1,259.47 km) |
| Otopeni to Ostuni | 505.17 mi (812.99 km) |
| Otopeni to Ottaviano | 641.00 mi (1,031.59 km) |
| Otopeni to Ovada | 855.64 mi (1,377.02 km) |
| Otopeni to Ozieri | 908.65 mi (1,462.33 km) |
| Otopeni to Paceco | 834.31 mi (1,342.70 km) |
