| Caernarfon to Houghton le Spring | 163.58 mi (263.26 km) |
| Caernarfon to Houghton Regis | 179.09 mi (288.22 km) |
| Caernarfon to Hounslow | 201.06 mi (323.58 km) |
| Caernarfon to Hove | 235.96 mi (379.74 km) |
| Caernarfon to Hoyland Nether | 119.37 mi (192.10 km) |
| Caernarfon to Hucclecote | 125.19 mi (201.47 km) |
| Caernarfon to Huddersfield | 108.37 mi (174.40 km) |
| Caernarfon to Huntingdon | 180.18 mi (289.97 km) |
| Caernarfon to Huntington | 144.91 mi (233.21 km) |
| Caernarfon to Huyton | 61.97 mi (99.73 km) |
| Caernarfon to Hwlffordd | 97.16 mi (156.36 km) |
| Caernarfon to Hyde | 92.82 mi (149.38 km) |
| Caernarfon to Hythe | 198.80 mi (319.93 km) |
| Caernarfon to Hythe | 268.31 mi (431.81 km) |
| Caernarfon to Ickenham | 194.80 mi (313.50 km) |
