| Holyhead to Fuente-Alamo de Murcia | 1,088.28 mi (1,751.41 km) |
| Holyhead to Galapagar | 880.23 mi (1,416.60 km) |
| Holyhead to Galdacano | 701.12 mi (1,128.35 km) |
| Holyhead to Gandia | 1,013.09 mi (1,630.42 km) |
| Holyhead to Garrucha | 1,122.25 mi (1,806.09 km) |
| Holyhead to Gava | 884.68 mi (1,423.76 km) |
| Holyhead to Gelves | 1,105.80 mi (1,779.62 km) |
| Holyhead to Getafe | 899.50 mi (1,447.61 km) |
| Holyhead to Gibraleon | 1,106.59 mi (1,780.88 km) |
| Holyhead to Gijon | 677.18 mi (1,089.82 km) |
| Holyhead to Gines | 1,102.25 mi (1,773.89 km) |
| Holyhead to Girona | 854.81 mi (1,375.69 km) |
| Holyhead to Godella | 973.28 mi (1,566.34 km) |
| Holyhead to Gondomar | 796.80 mi (1,282.33 km) |
| Holyhead to Grado | 688.61 mi (1,108.22 km) |
