| Boulder City to Hoyo de Manzanares | 5,580.59 mi (8,981.09 km) |
| Boulder City to Huelva | 5,601.19 mi (9,014.24 km) |
| Boulder City to Huercal de Almeria | 5,808.43 mi (9,347.76 km) |
| Boulder City to Huercal-Overa | 5,806.34 mi (9,344.41 km) |
| Boulder City to Huesca | 5,648.65 mi (9,090.62 km) |
| Boulder City to Huetor Vega | 5,749.07 mi (9,252.23 km) |
| Boulder City to Huetor-Tajar | 5,726.95 mi (9,216.63 km) |
| Boulder City to Humanes de Madrid | 5,599.67 mi (9,011.80 km) |
| Boulder City to Ibi | 5,804.35 mi (9,341.19 km) |
| Boulder City to Ibiza | 5,870.78 mi (9,448.11 km) |
| Boulder City to Icod de los Vinos | 5,518.12 mi (8,880.55 km) |
| Boulder City to Igualada | 5,751.75 mi (9,256.54 km) |
| Boulder City to Illescas | 5,605.55 mi (9,021.26 km) |
| Boulder City to Inca | 5,889.75 mi (9,478.64 km) |
| Boulder City to Ingenio | 5,598.12 mi (9,009.31 km) |
