| Mercer Island to Hoddesdon | 4,773.14 mi (7,681.63 km) |
| Mercer Island to Holbeach | 4,716.88 mi (7,591.09 km) |
| Mercer Island to Holborn | 4,783.61 mi (7,698.47 km) |
| Mercer Island to Hollinwood | 4,622.46 mi (7,439.13 km) |
| Mercer Island to Holyhead | 4,567.46 mi (7,350.62 km) |
| Mercer Island to Holywell | 4,607.06 mi (7,414.34 km) |
| Mercer Island to Honiton | 4,739.58 mi (7,627.61 km) |
| Mercer Island to Horbury | 4,630.14 mi (7,451.49 km) |
| Mercer Island to Horley | 4,801.02 mi (7,726.49 km) |
| Mercer Island to Hornchurch | 4,790.18 mi (7,709.06 km) |
| Mercer Island to Horndean | 4,793.26 mi (7,714.01 km) |
| Mercer Island to Hornsey | 4,779.85 mi (7,692.42 km) |
| Mercer Island to Horsell | 4,782.25 mi (7,696.29 km) |
| Mercer Island to Horsforth | 4,618.40 mi (7,432.60 km) |
| Mercer Island to Horsham | 4,803.09 mi (7,729.82 km) |
