| South Portland to Gorlice | 4,081.09 mi (6,567.87 km) |
| South Portland to Gorzow Wielkopolski | 3,753.36 mi (6,040.45 km) |
| South Portland to Gostyn | 3,846.84 mi (6,190.89 km) |
| South Portland to Gostynin | 3,919.17 mi (6,307.29 km) |
| South Portland to Grajewo | 3,982.53 mi (6,409.27 km) |
| South Portland to Grodek Nad Dunajcem | 4,061.45 mi (6,536.27 km) |
| South Portland to Grodzisk Mazowiecki | 3,972.19 mi (6,392.63 km) |
| South Portland to Grodzisk Wielkopolski | 3,811.04 mi (6,133.27 km) |
| South Portland to Grojec | 3,989.68 mi (6,420.76 km) |
| South Portland to Grudziadz | 3,856.94 mi (6,207.15 km) |
| South Portland to Gryfice | 3,714.49 mi (5,977.89 km) |
| South Portland to Gryfino | 3,708.82 mi (5,968.77 km) |
| South Portland to Gubin | 3,758.31 mi (6,048.41 km) |
| South Portland to Hajnowka | 4,055.74 mi (6,527.09 km) |
| South Portland to Hrubieszow | 4,138.41 mi (6,660.12 km) |
