| South Portland to Gokceada | 4,649.98 mi (7,483.41 km) |
| South Portland to Gokcebey | 4,851.60 mi (7,807.89 km) |
| South Portland to Golbasi | 5,231.92 mi (8,419.96 km) |
| South Portland to Golcuk | 4,789.51 mi (7,707.97 km) |
| South Portland to Gole | 5,268.76 mi (8,479.24 km) |
| South Portland to Golhisar | 4,935.45 mi (7,942.85 km) |
| South Portland to Golpazari | 4,825.99 mi (7,766.68 km) |
| South Portland to Gomec | 4,724.54 mi (7,603.41 km) |
| South Portland to Goynucek | 5,025.13 mi (8,087.16 km) |
| South Portland to Guclukonak | 5,410.38 mi (8,707.17 km) |
| South Portland to Gulagac | 5,073.34 mi (8,164.76 km) |
| South Portland to Gulsehir | 5,067.64 mi (8,155.57 km) |
| South Portland to Gumushacikoy | 4,990.84 mi (8,031.97 km) |
| South Portland to Gumushane | 5,170.98 mi (8,321.89 km) |
| South Portland to Gungoren | 4,735.23 mi (7,620.62 km) |
