| South Portland to Grabels | 3,571.90 mi (5,748.41 km) |
| South Portland to Gradignan | 3,341.31 mi (5,377.32 km) |
| South Portland to Grand-Couronne | 3,286.46 mi (5,289.04 km) |
| South Portland to Grande-Synthe | 3,298.09 mi (5,307.76 km) |
| South Portland to Granville | 3,190.11 mi (5,133.98 km) |
| South Portland to Grasse | 3,708.57 mi (5,968.36 km) |
| South Portland to Graulhet | 3,487.72 mi (5,612.94 km) |
| South Portland to Gravelines | 3,291.65 mi (5,297.40 km) |
| South Portland to Grenade | 3,456.33 mi (5,562.43 km) |
| South Portland to Grenoble | 3,607.65 mi (5,805.95 km) |
| South Portland to Gretz-Armainvilliers | 3,375.00 mi (5,431.53 km) |
| South Portland to Grigny | 3,362.65 mi (5,411.66 km) |
| South Portland to Grigny | 3,553.63 mi (5,719.01 km) |
| South Portland to Groslay | 3,352.06 mi (5,394.62 km) |
| South Portland to Guebwiller | 3,585.89 mi (5,770.93 km) |
