| Cities | Distance |
|---|---|
| Opera to Oerlinghausen | 455.56 mi (733.15 km) |
| Opera to Oestrich-Winkel | 323.95 mi (521.35 km) |
| Opera to Offenburg | 221.47 mi (356.43 km) |
| Opera to Oftersheim | 277.08 mi (445.91 km) |
| Opera to Ohrdruf | 382.62 mi (615.77 km) |
| Opera to Ohringen | 264.04 mi (424.93 km) |
| Opera to Olbernhau | 411.48 mi (662.22 km) |
| Opera to Olching | 218.48 mi (351.61 km) |
| Opera to Oldenburg | 538.09 mi (865.98 km) |
| Opera to Oldenburg in Holstein | 620.50 mi (998.59 km) |
| Opera to Olfen | 445.52 mi (716.99 km) |
| Opera to Olpe | 394.39 mi (634.71 km) |
| Opera to Olsberg | 413.63 mi (665.67 km) |
| Opera to Oranienburg | 540.61 mi (870.03 km) |
| Opera to Ortenberg | 343.65 mi (553.05 km) |