| Smolyan to Huelva | 1,705.86 mi (2,745.32 km) |
| Smolyan to Huercal de Almeria | 1,481.43 mi (2,384.13 km) |
| Smolyan to Huercal-Overa | 1,443.54 mi (2,323.15 km) |
| Smolyan to Huesca | 1,288.41 mi (2,073.49 km) |
| Smolyan to Huetor Vega | 1,533.42 mi (2,467.80 km) |
| Smolyan to Huetor-Tajar | 1,557.13 mi (2,505.95 km) |
| Smolyan to Humanes de Madrid | 1,485.48 mi (2,390.64 km) |
| Smolyan to Ibi | 1,346.30 mi (2,166.66 km) |
| Smolyan to Ibiza | 1,237.03 mi (1,990.80 km) |
| Smolyan to Icod de los Vinos | 2,487.82 mi (4,003.75 km) |
| Smolyan to Igualada | 1,189.20 mi (1,913.83 km) |
| Smolyan to Illescas | 1,487.90 mi (2,394.55 km) |
| Smolyan to Inca | 1,146.09 mi (1,844.45 km) |
| Smolyan to Ingenio | 2,439.27 mi (3,925.62 km) |
| Smolyan to Irun | 1,349.95 mi (2,172.53 km) |
