| Opava to Olivenza | 1,449.78 mi (2,333.19 km) |
| Opava to Olot | 910.03 mi (1,464.56 km) |
| Opava to Onate | 1,073.37 mi (1,727.42 km) |
| Opava to Onda | 1,119.40 mi (1,801.50 km) |
| Opava to Onteniente | 1,188.19 mi (1,912.20 km) |
| Opava to Orihuela | 1,237.90 mi (1,992.21 km) |
| Opava to Osuna | 1,437.82 mi (2,313.95 km) |
| Opava to Ourense | 1,332.27 mi (2,144.08 km) |
| Opava to Oviedo | 1,208.18 mi (1,944.38 km) |
| Opava to Paiporta | 1,151.17 mi (1,852.63 km) |
| Opava to Pajara | 2,242.81 mi (3,609.45 km) |
| Opava to Palafolls | 923.96 mi (1,486.98 km) |
| Opava to Palafrugell | 896.74 mi (1,443.16 km) |
| Opava to Palamos | 901.41 mi (1,450.68 km) |
| Opava to Palencia | 1,201.99 mi (1,934.42 km) |
