| Castalla to Holbeach | 982.15 mi (1,580.63 km) |
| Castalla to Holborn | 893.35 mi (1,437.70 km) |
| Castalla to Hollinwood | 1,033.34 mi (1,663.00 km) |
| Castalla to Holyhead | 1,033.78 mi (1,663.70 km) |
| Castalla to Holywell | 1,021.32 mi (1,643.66 km) |
| Castalla to Honiton | 852.06 mi (1,371.26 km) |
| Castalla to Horbury | 1,041.58 mi (1,676.26 km) |
| Castalla to Horley | 869.34 mi (1,399.08 km) |
| Castalla to Hornchurch | 896.45 mi (1,442.70 km) |
| Castalla to Horndean | 851.16 mi (1,369.81 km) |
| Castalla to Hornsey | 897.94 mi (1,445.10 km) |
| Castalla to Horsell | 879.70 mi (1,415.75 km) |
| Castalla to Horsforth | 1,054.00 mi (1,696.25 km) |
| Castalla to Horsham | 861.43 mi (1,386.34 km) |
| Castalla to Horwich | 1,039.84 mi (1,673.47 km) |
