| Idrija to Hazleton (Pennsylvania) | 4,274.77 mi (6,879.58 km) |
| Idrija to Healdsburg (California) | 6,009.23 mi (9,670.92 km) |
| Idrija to Heath (Ohio) | 4,577.61 mi (7,366.95 km) |
| Idrija to Heber (Utah) | 5,577.77 mi (8,976.55 km) |
| Idrija to Helena (Alabama) | 5,074.67 mi (8,166.89 km) |
| Idrija to Helena (Montana) | 5,251.69 mi (8,451.78 km) |
| Idrija to Hemet (California) | 6,137.93 mi (9,878.05 km) |
| Idrija to Henderson (Kentucky) | 4,883.16 mi (7,858.69 km) |
| Idrija to Henderson (Nevada) | 5,945.53 mi (9,568.40 km) |
| Idrija to Henderson (North Carolina) | 4,579.43 mi (7,369.88 km) |
| Idrija to Henderson (Texas) | 5,448.95 mi (8,769.24 km) |
| Idrija to Hendersonville (North Carolina) | 4,794.67 mi (7,716.28 km) |
| Idrija to Hendersonville (Tennessee) | 4,917.59 mi (7,914.10 km) |
| Idrija to Hercules (California) | 6,030.84 mi (9,705.70 km) |
| Idrija to Hereford (Texas) | 5,594.32 mi (9,003.19 km) |
