| Cities | Distance |
|---|---|
| Opera to Noventa Vicentina | 112.73 mi (181.42 km) |
| Opera to Novi di Modena | 88.79 mi (142.90 km) |
| Opera to Novi Ligure | 47.98 mi (77.21 km) |
| Opera to Nuoro | 350.12 mi (563.46 km) |
| Opera to Occhiobello | 119.54 mi (192.39 km) |
| Opera to Oderzo | 160.77 mi (258.74 km) |
| Opera to Oggiono | 28.38 mi (45.67 km) |
| Opera to Olbia | 308.94 mi (497.19 km) |
| Opera to Oleggio | 31.98 mi (51.46 km) |
| Opera to Olgiate Comasco | 30.17 mi (48.55 km) |
| Opera to Olgiate Olona | 23.64 mi (38.05 km) |
| Opera to Omegna | 51.96 mi (83.62 km) |
| Opera to Oppeano | 95.68 mi (153.98 km) |
| Opera to Orbassano | 85.81 mi (138.10 km) |
| Opera to Orbetello | 226.35 mi (364.27 km) |