| Holyhead to Granada | 1,115.64 mi (1,795.44 km) |
| Holyhead to Granadilla de Abona | 1,843.98 mi (2,967.60 km) |
| Holyhead to Granollers | 869.72 mi (1,399.67 km) |
| Holyhead to Grinon | 905.33 mi (1,457.00 km) |
| Holyhead to Guadalajara | 878.45 mi (1,413.73 km) |
| Holyhead to Guadarrama | 873.45 mi (1,405.68 km) |
| Holyhead to Guadix | 1,108.45 mi (1,783.88 km) |
| Holyhead to Guardamar del Segura | 1,068.50 mi (1,719.59 km) |
| Holyhead to Guernica y Luno | 696.22 mi (1,120.45 km) |
| Holyhead to Guia de Isora | 1,841.03 mi (2,962.85 km) |
| Holyhead to Guillena | 1,092.10 mi (1,757.57 km) |
| Holyhead to Guimar | 1,827.91 mi (2,941.74 km) |
| Holyhead to Hellin | 1,031.61 mi (1,660.21 km) |
| Holyhead to Herencia | 965.19 mi (1,553.33 km) |
| Holyhead to Hernani | 704.47 mi (1,133.73 km) |
