| Cities | Distance |
|---|---|
| Opera to Karditsa | 768.70 mi (1,237.10 km) |
| Opera to Kastoria | 694.98 mi (1,118.46 km) |
| Opera to Katerini | 758.99 mi (1,221.48 km) |
| Opera to Keratsini | 900.54 mi (1,449.28 km) |
| Opera to Kerkyra | 674.09 mi (1,084.85 km) |
| Opera to Kiato | 862.35 mi (1,387.82 km) |
| Opera to Kifisia | 903.95 mi (1,454.77 km) |
| Opera to Kilkis | 750.63 mi (1,208.03 km) |
| Opera to Komotini | 865.58 mi (1,393.01 km) |
| Opera to Korinthos | 872.94 mi (1,404.86 km) |
| Opera to Koropi | 914.29 mi (1,471.41 km) |
| Opera to Korydallos | 901.22 mi (1,450.37 km) |
| Opera to Kos | 1,103.91 mi (1,776.58 km) |
| Opera to Kozani | 725.93 mi (1,168.27 km) |
| Opera to Lagos | 848.18 mi (1,365.01 km) |