| Piqua to Hoddesdon | 3,893.94 mi (6,266.69 km) |
| Piqua to Holbeach | 3,866.10 mi (6,221.89 km) |
| Piqua to Holborn | 3,896.80 mi (6,271.29 km) |
| Piqua to Hollinwood | 3,764.58 mi (6,058.50 km) |
| Piqua to Holyhead | 3,673.90 mi (5,912.57 km) |
| Piqua to Holywell | 3,729.28 mi (6,001.69 km) |
| Piqua to Honiton | 3,794.19 mi (6,106.16 km) |
| Piqua to Horbury | 3,783.36 mi (6,088.72 km) |
| Piqua to Horley | 3,904.30 mi (6,283.37 km) |
| Piqua to Hornchurch | 3,908.57 mi (6,290.24 km) |
| Piqua to Horndean | 3,878.97 mi (6,242.60 km) |
| Piqua to Hornsey | 3,894.75 mi (6,267.99 km) |
| Piqua to Horsell | 3,884.56 mi (6,251.59 km) |
| Piqua to Horsforth | 3,775.53 mi (6,076.13 km) |
| Piqua to Horsham | 3,901.43 mi (6,278.75 km) |
