| Sliven to Huelva | 1,789.83 mi (2,880.45 km) |
| Sliven to Huercal de Almeria | 1,570.70 mi (2,527.79 km) |
| Sliven to Huercal-Overa | 1,531.77 mi (2,465.14 km) |
| Sliven to Huesca | 1,359.48 mi (2,187.87 km) |
| Sliven to Huetor Vega | 1,620.80 mi (2,608.42 km) |
| Sliven to Huetor-Tajar | 1,643.92 mi (2,645.63 km) |
| Sliven to Humanes de Madrid | 1,562.16 mi (2,514.05 km) |
| Sliven to Ibi | 1,431.65 mi (2,304.02 km) |
| Sliven to Ibiza | 1,323.22 mi (2,129.52 km) |
| Sliven to Icod de los Vinos | 2,581.47 mi (4,154.48 km) |
| Sliven to Igualada | 1,264.02 mi (2,034.25 km) |
| Sliven to Illescas | 1,565.10 mi (2,518.78 km) |
| Sliven to Inca | 1,230.39 mi (1,980.12 km) |
| Sliven to Ingenio | 2,534.71 mi (4,079.22 km) |
| Sliven to Irun | 1,414.79 mi (2,276.89 km) |
