| Cities | Distance |
|---|---|
| Opatija to Grevena | 511.90 mi (823.82 km) |
| Opatija to Ialysos | 947.94 mi (1,525.56 km) |
| Opatija to Ilion | 698.83 mi (1,124.66 km) |
| Opatija to Ilioupoli | 705.84 mi (1,135.95 km) |
| Opatija to Ioannina | 514.29 mi (827.67 km) |
| Opatija to Irakleio | 894.03 mi (1,438.81 km) |
| Opatija to Irakleio | 700.34 mi (1,127.08 km) |
| Opatija to Kaisariani | 704.30 mi (1,133.47 km) |
| Opatija to Kalamaria | 546.32 mi (879.21 km) |
| Opatija to Kalamata | 701.73 mi (1,129.32 km) |
| Opatija to Kallithea | 703.20 mi (1,131.68 km) |
| Opatija to Kalymnos | 874.30 mi (1,407.04 km) |
| Opatija to Kalyvia Thorikou | 717.01 mi (1,153.91 km) |
| Opatija to Kamatero | 697.88 mi (1,123.13 km) |
| Opatija to Karditsa | 566.25 mi (911.29 km) |