| South Portland to Geraardsbergen | 3,367.75 mi (5,419.87 km) |
| South Portland to Gerpinnes | 3,405.95 mi (5,481.34 km) |
| South Portland to Gistel | 3,321.43 mi (5,345.32 km) |
| South Portland to Gooik | 3,376.99 mi (5,434.74 km) |
| South Portland to Grez-Doiceau | 3,402.31 mi (5,475.49 km) |
| South Portland to Grimbergen | 3,384.26 mi (5,446.44 km) |
| South Portland to Grobbendonk | 3,390.66 mi (5,456.74 km) |
| South Portland to Haacht | 3,393.34 mi (5,461.05 km) |
| South Portland to Haaltert | 3,369.67 mi (5,422.96 km) |
| South Portland to Halen | 3,413.27 mi (5,493.13 km) |
| South Portland to Halle | 3,383.54 mi (5,445.28 km) |
| South Portland to Hamme | 3,370.28 mi (5,423.94 km) |
| South Portland to Hannut | 3,419.56 mi (5,503.25 km) |
| South Portland to Harelbeke | 3,343.01 mi (5,380.05 km) |
| South Portland to Hasselt | 3,422.74 mi (5,508.37 km) |
