| Harrow to Fuente-Alamo de Murcia | 957.42 mi (1,540.82 km) |
| Harrow to Galapagar | 780.18 mi (1,255.58 km) |
| Harrow to Galdacano | 588.76 mi (947.51 km) |
| Harrow to Gandia | 871.78 mi (1,402.99 km) |
| Harrow to Garrucha | 997.51 mi (1,605.34 km) |
| Harrow to Gava | 718.69 mi (1,156.62 km) |
| Harrow to Gelves | 1,022.76 mi (1,645.97 km) |
| Harrow to Getafe | 795.85 mi (1,280.80 km) |
| Harrow to Gibraleon | 1,033.51 mi (1,663.27 km) |
| Harrow to Gijon | 609.26 mi (980.51 km) |
| Harrow to Gines | 1,019.94 mi (1,641.43 km) |
| Harrow to Girona | 679.82 mi (1,094.06 km) |
| Harrow to Godella | 833.52 mi (1,341.42 km) |
| Harrow to Gondomar | 764.68 mi (1,230.63 km) |
| Harrow to Grado | 625.75 mi (1,007.05 km) |
