| Castelo Branco to Huelva | 179.81 mi (289.38 km) |
| Castelo Branco to Huercal de Almeria | 341.15 mi (549.03 km) |
| Castelo Branco to Huercal-Overa | 344.32 mi (554.13 km) |
| Castelo Branco to Huesca | 402.51 mi (647.78 km) |
| Castelo Branco to Huetor Vega | 281.38 mi (452.83 km) |
| Castelo Branco to Huetor-Tajar | 260.13 mi (418.64 km) |
| Castelo Branco to Humanes de Madrid | 196.58 mi (316.37 km) |
| Castelo Branco to Ibi | 379.55 mi (610.83 km) |
| Castelo Branco to Ibiza | 481.08 mi (774.22 km) |
| Castelo Branco to Icod de los Vinos | 949.99 mi (1,528.86 km) |
| Castelo Branco to Igualada | 492.82 mi (793.11 km) |
| Castelo Branco to Illescas | 195.26 mi (314.24 km) |
| Castelo Branco to Inca | 552.95 mi (889.89 km) |
| Castelo Branco to Ingenio | 938.47 mi (1,510.33 km) |
| Castelo Branco to Irun | 382.36 mi (615.35 km) |
