| Southborough to Fuente-Alamo de Murcia | 929.98 mi (1,496.65 km) |
| Southborough to Galapagar | 759.18 mi (1,221.77 km) |
| Southborough to Galdacano | 566.85 mi (912.26 km) |
| Southborough to Gandia | 842.74 mi (1,356.26 km) |
| Southborough to Garrucha | 971.04 mi (1,562.73 km) |
| Southborough to Gava | 685.75 mi (1,103.61 km) |
| Southborough to Gelves | 1,003.72 mi (1,615.33 km) |
| Southborough to Getafe | 774.08 mi (1,245.76 km) |
| Southborough to Gibraleon | 1,016.24 mi (1,635.49 km) |
| Southborough to Gijon | 595.90 mi (959.00 km) |
| Southborough to Gines | 1,001.04 mi (1,611.03 km) |
| Southborough to Girona | 645.41 mi (1,038.68 km) |
| Southborough to Godella | 804.89 mi (1,295.35 km) |
| Southborough to Gondomar | 756.57 mi (1,217.58 km) |
| Southborough to Grado | 613.17 mi (986.81 km) |
