| Opatija to Huelva | 1,231.30 mi (1,981.59 km) |
| Opatija to Huercal de Almeria | 1,045.40 mi (1,682.42 km) |
| Opatija to Huercal-Overa | 1,002.30 mi (1,613.05 km) |
| Opatija to Huesca | 766.00 mi (1,232.76 km) |
| Opatija to Huetor Vega | 1,083.25 mi (1,743.32 km) |
| Opatija to Huetor-Tajar | 1,102.57 mi (1,774.41 km) |
| Opatija to Humanes de Madrid | 981.16 mi (1,579.02 km) |
| Opatija to Ibi | 891.44 mi (1,434.64 km) |
| Opatija to Ibiza | 793.39 mi (1,276.85 km) |
| Opatija to Icod de los Vinos | 2,056.92 mi (3,310.29 km) |
| Opatija to Igualada | 685.76 mi (1,103.63 km) |
| Opatija to Illescas | 985.74 mi (1,586.40 km) |
| Opatija to Inca | 696.51 mi (1,120.93 km) |
| Opatija to Ingenio | 2,021.72 mi (3,253.64 km) |
| Opatija to Irun | 805.55 mi (1,296.41 km) |
