| Letchworth to Granada | 1,035.65 mi (1,666.72 km) |
| Letchworth to Granadilla de Abona | 1,852.03 mi (2,980.55 km) |
| Letchworth to Granollers | 726.20 mi (1,168.70 km) |
| Letchworth to Grinon | 830.66 mi (1,336.81 km) |
| Letchworth to Guadalajara | 796.08 mi (1,281.17 km) |
| Letchworth to Guadarrama | 802.22 mi (1,291.05 km) |
| Letchworth to Guadix | 1,023.93 mi (1,647.86 km) |
| Letchworth to Guardamar del Segura | 959.81 mi (1,544.66 km) |
| Letchworth to Guernica y Luno | 609.00 mi (980.09 km) |
| Letchworth to Guia de Isora | 1,850.62 mi (2,978.28 km) |
| Letchworth to Guillena | 1,037.24 mi (1,669.27 km) |
| Letchworth to Guimar | 1,835.32 mi (2,953.67 km) |
| Letchworth to Hellin | 932.72 mi (1,501.07 km) |
| Letchworth to Herencia | 884.09 mi (1,422.81 km) |
| Letchworth to Hernani | 607.25 mi (977.28 km) |
