| South Portland to Gantt (South Carolina) | 889.44 mi (1,431.42 km) |
| South Portland to Garden Acres (California) | 2,650.91 mi (4,266.23 km) |
| South Portland to Garden City (Georgia) | 992.58 mi (1,597.41 km) |
| South Portland to Garden City (Idaho) | 2,268.98 mi (3,651.58 km) |
| South Portland to Garden City (Kansas) | 1,635.52 mi (2,632.12 km) |
| South Portland to Garden City (Michigan) | 665.20 mi (1,070.54 km) |
| South Portland to Garden City (New York) | 264.12 mi (425.05 km) |
| South Portland to Garden City (South Carolina) | 837.11 mi (1,347.20 km) |
| South Portland to Garden Grove (California) | 2,620.73 mi (4,217.65 km) |
| South Portland to Gardena (California) | 2,634.15 mi (4,239.26 km) |
| South Portland to Gardendale (Alabama) | 1,122.62 mi (1,806.69 km) |
| South Portland to Gardere (Louisiana) | 1,463.85 mi (2,355.84 km) |
| South Portland to Gardner (Kansas) | 1,317.61 mi (2,120.49 km) |
| South Portland to Gardner (Massachusetts) | 112.06 mi (180.34 km) |
| South Portland to Gardnerville Ranchos (Nevada) | 2,551.33 mi (4,105.97 km) |
