| Seaham to Hoyo de Manzanares | 988.51 mi (1,590.85 km) |
| Seaham to Huelva | 1,243.79 mi (2,001.69 km) |
| Seaham to Huercal de Almeria | 1,241.76 mi (1,998.43 km) |
| Seaham to Huercal-Overa | 1,206.46 mi (1,941.62 km) |
| Seaham to Huesca | 878.95 mi (1,414.53 km) |
| Seaham to Huetor Vega | 1,226.77 mi (1,974.29 km) |
| Seaham to Huetor-Tajar | 1,225.84 mi (1,972.79 km) |
| Seaham to Humanes de Madrid | 1,014.29 mi (1,632.35 km) |
| Seaham to Ibi | 1,120.76 mi (1,803.70 km) |
| Seaham to Ibiza | 1,108.27 mi (1,783.59 km) |
| Seaham to Icod de los Vinos | 1,984.93 mi (3,194.43 km) |
| Seaham to Igualada | 925.95 mi (1,490.18 km) |
| Seaham to Illescas | 1,023.76 mi (1,647.57 km) |
| Seaham to Inca | 1,063.30 mi (1,711.22 km) |
| Seaham to Ingenio | 1,989.64 mi (3,202.01 km) |
