| Mercer Island to Hazelwood (Missouri) | 1,700.47 mi (2,736.64 km) |
| Mercer Island to Hazleton (Pennsylvania) | 2,298.91 mi (3,699.73 km) |
| Mercer Island to Healdsburg (California) | 618.77 mi (995.81 km) |
| Mercer Island to Heath (Ohio) | 2,027.62 mi (3,263.14 km) |
| Mercer Island to Heber (Utah) | 725.00 mi (1,166.78 km) |
| Mercer Island to Helena (Alabama) | 2,080.26 mi (3,347.86 km) |
| Mercer Island to Helena (Montana) | 484.75 mi (780.13 km) |
| Mercer Island to Hemet (California) | 993.72 mi (1,599.23 km) |
| Mercer Island to Henderson (Kentucky) | 1,864.65 mi (3,000.87 km) |
| Mercer Island to Henderson (Nevada) | 879.11 mi (1,414.79 km) |
| Mercer Island to Henderson (North Carolina) | 2,346.24 mi (3,775.90 km) |
| Mercer Island to Henderson (Texas) | 1,787.25 mi (2,876.30 km) |
| Mercer Island to Hendersonville (North Carolina) | 2,197.43 mi (3,536.43 km) |
| Mercer Island to Hendersonville (Tennessee) | 1,968.08 mi (3,167.32 km) |
| Mercer Island to Hercules (California) | 660.51 mi (1,062.99 km) |
