| Helensburgh to Granada | 1,302.68 mi (2,096.46 km) |
| Helensburgh to Granadilla de Abona | 2,014.78 mi (3,242.47 km) |
| Helensburgh to Granollers | 1,044.23 mi (1,680.52 km) |
| Helensburgh to Grinon | 1,092.40 mi (1,758.06 km) |
| Helensburgh to Guadalajara | 1,065.22 mi (1,714.30 km) |
| Helensburgh to Guadarrama | 1,060.55 mi (1,706.80 km) |
| Helensburgh to Guadix | 1,295.33 mi (2,084.63 km) |
| Helensburgh to Guardamar del Segura | 1,252.88 mi (2,016.31 km) |
| Helensburgh to Guernica y Luno | 882.23 mi (1,419.81 km) |
| Helensburgh to Guia de Isora | 2,011.28 mi (3,236.84 km) |
| Helensburgh to Guillena | 1,278.53 mi (2,057.60 km) |
| Helensburgh to Guimar | 1,998.98 mi (3,217.06 km) |
| Helensburgh to Hellin | 1,217.26 mi (1,958.98 km) |
| Helensburgh to Herencia | 1,152.11 mi (1,854.14 km) |
| Helensburgh to Hernani | 889.40 mi (1,431.35 km) |
